Chemistry Archives - ResearchParent.com

Simple Lemon Battery

Michelle — Sun, 31 Jul 2022 15:07:26 +0000

A lemon battery is one of those widely known experiments that every child should probably do once as they learn about electricity. Honestly, though, it was not one that I was planning to do with my kids. However, my 12-year-old is currently taking the class Batteries are Weird online from the company, Science is Weird (not affiliated, just a fan). After attending class over Zoom last week, he was motivated to try this experiment on his own. We had just gotten a bag of lemons from Costco, so I said go for it!

He spent about 30 minutes working on it by himself using copper pennies and nails, but was still having some trouble. Seeing him working so hard, I got involved and decided to document the process. Hopefully, you can use what we learned to ensure success when you attempt this experiment with your own kids!

How Does It Work

I was actually surprised by how hard it was to figure out exactly how a lemon battery worked! There is a lot of conflicting and inaccurate information on the internet, but I found this document from the American Chemical Society to be the most helpful. It is easy to understand, detailed, and backed up by several other reputable sources.

The main information that I would want my child to know is that there are two sides to a battery. One side is called the cathode and that is the side that pulls electrons from the wire. The other side is the anode and that is the side that gives electrons to the wire. In my son’s Science is Weird class, the teacher used the metaphor of two women, Annie and Cathy, who were a giver and a taker. Annie would give you a kidney if you needed one. Cathy would take your kidney even if she already had two good ones. It would be really handy to remember if the cathode (the mean taker) was the negative side of the battery and the anode (the happy giver) was the positive side, but alas the opposite is true. For older children, if they remember Annie and Cathy, they can just remember that electrons, which are negatively charged, flow toward the positive side, so the cathode is positive.

Next, I would want them to know how these two sides of the battery can be used to power a device. First, they need to understand that electrons, which are negatively charged particles, will flow from the negative side to the positive side. This makes sense because the anode is giving electrons and the cathode is taking them. Because the electrons are flowing through the wire, electricity, which is essentially just moving electrons, is being produced. This electricity can be used to power a low-power device such as a small LED, a hand calculator, or a kitchen timer.

If you wanted to explain this even a step further, you could ask the question WHY is the anode the giver and the cathode the taker? This is due to the chemistry that happens inside the electrolyte, the electrically conductive substance that transports ions near the anode and the cathode. In our case, the electrolyte is lemon juice. The chemistry that is happening at the anode is that the lemon juice is dissolving the zinc off of the nail, which releases positively charged zinc ions into the juice and frees up electrons to travel through the wire. The chemistry that is happening at the cathode is that the electrons being collected from the wire are combined with positively charged hydrogen ions that the copper is pulling from the lemon juice. We didn’t see it, but this reaction produces hydrogen gas causing bubbles within the lemon juice. The anode is giving zinc ions to the electrolyte and giving electrons to the wire. The cathode is taking hydrogen ions from the electrolyte and taking electrons from the wire.

Troubleshooting Tips

My son read online that each lemon battery should produce about 0.7 Volts, so he calculated that he would need 3 lemons to produce the 2 V required for his LED. However, we found that when he was using pennies, the voltage they produced was inconsistent. I theorized that maybe since modern pennies are only coated in copper and not copper all the way through, imperfections in the surface such as nicks and scratches might be interfering with his results. To fix this we went to the hardware store and got 1 foot of copper wire. I believe it was gauge 8 AWG, but the thickness is not super important. The store was kind enough to strip off the plastic insulation for us and cut it into 4 pieces, though we could have done that at home using an exact-o knife and wire cutters. They also ended up giving it to us for free. These 4 pieces of copper were used as our cathodes, the positive end of our batteries that collects the electrons.

If I were to go back and do this experiment again, I probably would have cut a couple more pieces of copper wire giving us 5 or 6 cathodes instead of just 4. This would have allowed us to add more lemons to our battery circuit, which would have produced more voltage and would have caused our LED to light up even brighter than it did. As it was, with 4 batteries, it lit up, but it did not achieve full brightness.

Another suggestion if your battery is not working is to make sure that you roll the lemons to break up the little pouches of lemon juice inside it. The more juice is freed, the better able the lemon will be to dissolve the zinc off of the nail, freeing up more electrons. We used the galvanized nails we happened to have on hand, but bigger nails might produce a bigger voltage because they would have a larger surface area to dissolve zinc. This would allow our anode, the negative end of our battery, to provide even more electrons to the cathode.

Simple Lemon Battery Details

Recommended Age Range: Elementary
Time Required: about 15 minutes
Difficulty: Easy
Cost: Less than $7 in used supplies

Materials

lemons (We used 4, but I recommend having 5 or 6 on hand.)
galvanized nails (You need as many nails as you have lemons. We used 1.5″ nails we had on hand, but any outdoor nails will work. Bigger nails might actually work better.)
copper wire (You need as many pieces as you have lemons, we used about 2.5″ pieces, but the length is not important. Again, I recommend having at least 5 or 6.)

Supplies

alligator clips (you need one more alligator clip than the number of lemons)
an led (or something to power…any device you have, such as a simple calculator or timer, that uses one AA or AAA battery will work)
a voltmeter (optional, but it will let you measure how much voltage each lemon battery and the entire circuit is producing.)

Instructions

First, roll all of your lemons on the counter underneath your palm to free up the juice inside. The juice acts as the electrolyte that conducts electricity through the lemon.
Stick your copper piece (your cathode) and your galvanized nail (your anode) into a lemon on opposite sides. They should not be touching each other inside the lemon. To light up an LED, repeat this for 4 lemons.
Line up your lemons and connect the nail of one lemon to the copper piece of the next lemon using alligator clips.
Attach leads to the two end terminals. One lead should come off of the last piece of copper wire and one piece should come off of the nail on the other end. This open circuit is equivalent to a battery. It is ready to be hooked up to a device to power it.
Connect your LED! Of your mini calculator or kitchen timer or other device that requires just a little power. If it doesn’t work, try flipping the LED since they are designed to only work when the current flows in one direction. The shorter end should end up needing to be connected to the nail.
We did not do this step, but try adding an extra lemon into your circuit! Your light should shine even brighter! Also, if you got a kit of LEDs, try using different colors. Oddly, even though green LEDs were supposed to require more voltage, they lit up the brightest for us.
Optionally, if you have a voltmeter, try playing around with it and measuring the voltage between different points in your circuit. To get a reading, it needs to be set to the lowest number on the DC V setting. For our voltmeter that was 5, which means that full scale (if the needle moved all the way to the right) is 5 V. If your voltmeter does not seem to be measuring anything, try flipping the leads as it will only show positive voltage drops.

Have fun being an electrical engineer!

Red Cabbage Acid/Base Experiment

Michelle — Fri, 17 Apr 2020 22:49:52 +0000

I have known about using red cabbage as a color-changing acid base indicator for years. However, this experiment always seemed like too much work. Who has time to boil cabbage? It turns out ME during quarantine, that’s who. I cannot believe how easy this red cabbage acid/base experiment was to put together. The kids had so much fun playing with science and it really is as simple as boiling some cabbage.

In the past, I’ve done acid/base experiments with my kids using a turmeric solution as the color-changing indicator. (This invisible ink experiment using turmeric is particularly fun!) The problem with turmeric is that the color change for bases is much more impressive than for acids. Red cabbage juice is really cool, because the color change is dramatic in both directions. The purple solution changes to bright pink or red for bases and green or blue for acids.

If you are looking for a good reference book to teach elementary-aged kids about acids and bases, I recommend Matter Matters! by Tom Adams and Thomas Flintham. It is full of lots of fun chemistry pop-ups and interactive flaps. Though not a long book, it covers topic such as atoms and molecules, states of matter, chemical reactions, and radioactivity in a way that is fun and engaging for young kids. It has a double page spread just on acids and bases.

If you are feeling like boiling cabbage is too much work for you (and I hear you), you can always just buy a jar of red cabbage. It will just cost a little more money and you will have less indicator to start with.

I also explain in this post the very simple process of making indicator strips from the red cabbage indicator solution. This just allows the child to dip the color-changing paper into the test solution to test for acidity. It is an easy extension to this experiment, but honestly, I think most kids will have more fun stirring the test substances into the indicator solution. If the indicator paper seems too intimidating or time-consuming, just skip those steps!

Recommended Age Range: Preschool, Kindergarten, Elementary
Time Required: About 10 minutes of prep, with 2 hours of letting the solution cool to prepare indicator solution. If making the indicator paper, that will take an addition couple hours of drying time.
Difficulty: Easy
Cost: Less than $2 in used supplies

Materials:

head of red cabbage
4-6 cups distilled water
2 to 10 coffee filters (optional, only if making indicator strips)

Supplies:

knife
cutting board
a large pot
measuring glass
spoon for stirring (not pictured)
jar with lid for storing leftover solution
funnel for pouring in jar
strainer (not pictured, because my pot lid contains strainer holes)
scissors (optional, only if making indicator strips)
cookie sheet or drying rack (optional, only if making indicator strips)

Test Substances:

In addition to the materials and supplies needed to make the acid base indicator and test strips, you will also want to look around your house to find substances you can check for acidity. These can be anything! Grape juice, coca cola, olive oil, sand…let your kids be creative. Below are the substances we tested. Whatever you decide, make sure you test baking soda and vinegar! If you don’t have those, soap and lemon juice are great too.

soap
baking powder
borax
lemon
orange
baking soda
water
vinegar

Instructions:

Measure 4 to 6 cups of distilled water. We used 6 cups so we would be sure to have some solution left over for a different day.
Pour the water in a pot and bring it to a boil.
Meanwhile, chop up your head of cabbage into chunks. You want your pieces to be bigger than whatever you will use to strain the solution.
When the water is boiling, place the cabbage in the pot and turn off the heat.
Stir.
Wait for the solution to cool, stirring occasionally. For us, this took a couple hours.
While the solution is cooling, get your coffee filter paper ready. If needed, cut it into pieces that will lay flat and are smaller than your pot. Each filter will makes several indicator strips. We used about 10 filters, but we have lots left over to save.
When the solution is cool, place the filter paper in the red cabbage juice solution and make sure it is saturated.
Lay the filter paper on a cookie sheet or other suitable place to dry.
Strain the red cabbage indicator solution into either test containers (like cups) or into a jar to save for later, or both.
Label the leftover indicator solution so you remember what it is and store it in your fridge.
After the filter paper dries, cut it into strips. This may take a couple hours. I assisted the process with a blow dryer.

Now you are ready to let your kids experiment! How you want to conduct this experiment is entirely up to you. Since I have 4 kids, I gave them each 2 cups with cabbage juice indicator and as many test strips as they wanted. I let them each pick 2 test substances (one for each of their cups). They took turns guessing what color the solution would change before the poured their substances in. Red/pink means that the substance was an acid and blue or green means it was a base.

By the end, my kids were pretty good at guessing which substances were acids (like vinegar and citrus fruits), which were bases (like baking soda and soap), and which were neutral (like water). In the beginning, my 10 year old son guessed that soap was an acid, since it burns if it gets in your eyes. However, he questioned his guess, since soap does not sting in cuts like lemon juice.

After we used the indicator solution I put some more test substances (lemon juice, vinegar, baking soda stirred into warm water, etc.) in separate containers. Then they shared the substances and dipped their strips in whichever container they wanted. My daughter discovered it was fun to use a q-tip to draw on indicator paper. She was especially excited to discover she could change the indicator paper from blue to pink back to blue.

However your kids decide to play with the indicator solution and indicator paper, I hope they have fun. It’s experiments like these that make my kids say, “I love science.” At this age, that is the absolute ultimate goal when I do activities like this with my kids.

Spinach Chromatography Experiment

Michelle — Fri, 09 Aug 2019 22:48:10 +0000

This upcoming school year, my kids and I will be learning chemistry. I decided to start the year with this fun and easy spinach chromatography experiment inspired by the book Fizz, Bubble, and Flash! Element Explorations and Atom Adventures for Hands-On Science Fun!

My kids learned that even though spinach leaves are green, there are actually many different colored molecules within spinach. Chromatography is a process that separates out the different molecules within a substance.

Chlorophyll is the chemical that makes leaves green, but there are other color molecules within leaves as well, such as red, orange, brown, and yellow. Normally, the green chlorophyll dominates the other colors making leaves appear green. In the fall, when it gets cold, some plants stop producing as much chlorophyll allowing their other colors to show instead.

Recommended Age Range: Preschool, Kindergarten, Elementary
Time Required: 10 minutes of prep, at least 30 minutes to see results
Difficulty: Easy
Cost: Less than $2 in used supplies

Materials:

isopropyl alcohol (rubbing alcohol)
spinach leaves
coffee filter
mason jar (we used a 16 ounce jar)
mason jar lid
fork (or spoon)
scissors
tape (any kind)

Instructions:

Rip up some spinach into small pieces and put them into a jar.
Fill up the jar until it is about 1/3 full.
Pour isopropyl alcohol into jar just until the spinach is covered.
Stir the spinach and alcohol together.
Place the lid on the jar and shake it up. Let is sit for an hour shaking it occasionally.
Cut out a strip of coffee filter paper.
Tape the filter paper to the edge of the mason jar such that the end of the paper dips into the spinach “juice.”
Check the paper periodically and you should see the colors begin to separate!

This is what the filter paper looked like a couple hours later…

And a couple hours after that…

And the next day…

Remember to remind the children that spinach is green because of all the green chlorophyll molecules inside it, but it contains other color molecules as well.

Have fun with your young chemists!

Super Easy Bottle Rocket

Michelle — Wed, 29 May 2019 06:00:49 +0000

This has to be one of the most fun science activities I’ve done with my kids in a long time. It is super simple, inexpensive, and quick. It took us a few tries experimenting with how to add the baking soda to the bottle, but I think we got it down. We were able to make this super easy bottle rocket launch higher than our 2 story house four times in a row.

This experiment was inspired by our astronomy curriculum from Pandia Press (NOT an affiliate link, but a great curriculum). The primary change that we made between the instructions in that curriculum and our final version was to use a Kleenex instead of a paper towel. Also, as we were inserting the baking soda-filled tissue into the bottle, we ripped off the end of the tissue as described below to cause the mixing to occur more quickly.

Recommended Age Range: Preschool, Kindergarten, Elementary
Time Required: 5 minutes
Difficulty: Easy
Cost: Less than $3 in used supplies

Materials:

2 liter bottle
baking soda
vinegar
#4 rubber stopper
measuring cup
tablespoon
3 pencils
packing or duct tape
Kleenex or other tissue
funnel (not pictured)

Instructions:

Place rubber stopper into empty 2-liter bottle.
Put a piece of packing or duct tape near end of unsharpened pencil opposite eraser.
Stand 2-liter bottle on rubber stopper and tape pencil to bottle so that it touches the ground.
Repeat previous steps by taping a second pencil to 2-liter bottle.
Repeat previous steps again to tape a third pencil to bottle. Adjust pencils if necessary to make sure all 3 erasers are touching the ground and bottle is more or less vertical.
Measure 2 cups of vinegar.
Use a funnel to pour 2 cups of vinegar into bottle.
Use a measuring spoon to place 2 tablespoons of baking soda onto a facial tissue.
Fold tissue in half to get baking soda to gather along the center crease.
Fold bottom of tissue paper up as shown to hold in baking soda.
Fold side of tissue over as shown.
Roll up the tissue as shown into a tube that will fit into the opening of the 2-liter bottle.
Start inserting the baking soda packet into the opening of the 2-liter bottle.
Continue pushing tissue packet into bottle being careful not to let it fall in.
When packet is almost completely into the bottle and the remaining part outside the bottle contains no baking soda, use the stopper to hold the packet in place. Rip off the remaining tissue that does not contain baking soda and let the packet fall into the bottle.
Give the bottle a quick shake and turn it over so that stopper is at the ground.
Wait patiently. This never took more than 60 seconds for us.
Watch the rocket launch!

Have fun being a rocket scientist!

Color-Changing Invisible Ink

Michelle — Tue, 22 May 2018 16:52:52 +0000

What better way to get kids excited about science than with an experiment straight out of a spy novel? Write a secret message using colorless ink, wait for it to dry, then use a special secret solution to reveal the message. This activity was inspired by the Berlin blue experiment in this chemistry kit. However, while that experiment uses strange-sounding chemicals and warns against putting the substances down the drain, I thought it would be fun to make something similar at home using common ingredients. I experimented a bit and came up with something that works well using only water, baking soda, turmeric, and rubbing alcohol.

*** Note: I recently started a Patreon page, where I share lots of fun, exclusive educational content! Your support helps me to make more activities and resources! ***

My kids and I have also done the lemon juice invisible ink experiment in the past. It works pretty well, but the one downside is that you really need to apply a lot of heat (like with an iron or hot plate) to get it to work. In my experience, holding the paper over a lightbulb just doesn’t cut it. That means I end up being the one to reveal the message while my kids stand by and watch. The nice thing about this color-changing invisible ink experiment is that no heat is required. Instead, it uses a homemade acid/base indicator to reveal the secret message.

I knew that I wanted to use a natural indicator (like red cabbage juice or turmeric) along with a basic solution. As you can see, I tried several different combinations before I found one that I was really happy with. It turns out a solution containing only baking soda and water really has a remarkable change in color when used with the turmeric/rubbing alcohol indicator. (See below for detailed instructions.)

The kids had such a great time making and reading secret messages. The best part…even the baby could reveal the message on his own since no irons or hotplates were involved. (Though I will warn you that if you’re worried about stains, maybe have them use paintbrushes instead of paper towels!)

Recommended Age Range: Preschool, Kindergarten, Elementary, Middle School, High School
Time Required: ~30 minutes (including about 15 minutes to let paper dry in the middle)
Difficulty: Easy
Cost: Under $10 (much, much less in used supplies). We had everything on hand, but turmeric can be a little expensive if you have to buy more than you will use. Maybe borrow a teaspoon from a friend!

Materials:

water (1/2 cup)
baking soda (1 Tablespoon)
paper
q-tips (or a paintbrush) to apply invisible ink
rubbing alcohol (1/2 cup)
turmeric (1 teaspoon)
paper towels (or a paintbrush) to apply color-changing solution

Supplies:

measuring glass
measuring spoons
spoon for stirring

Instructions:

1. First, add 1 Tablespoon of baking soda to 1/2 cup of water.

2. Stir the baking soda into the water to make the “invisible ink”.

3. Use q-tips (or paintbrushes) to draw a picture with the invisible ink on paper.

4. While you are waiting for your paper to dry, mix up your color changing-solution. First, add 1 teaspoon of turmeric to 1/2 cup of rubbing alcohol.

5. Stir the turmeric into the rubbing alcohol. (Note: The solution can stain a little bit. I used a white plastic bowl, which was not the smartest, because it was a little difficult to clean afterwards. You might want to use a glass bowl.)

6. After the paper is dry, use a paper towel (or paintbrush) to apply the color-changing solution to the paper to reveal the secret message! (Note: We used paper towels, but our hands were all a little orange for a few hours afterward, so you might want to use a paintbrush instead!)

Enjoy reveling in the mysteries of science!

Click here for more Chemistry activities for kids.

Color Changing Acid-Base Experiment

Michelle — Wed, 13 Apr 2016 13:00:10 +0000

When most people think about a stereotypical scientist, they probably envision a white lab coat, goggles, and test tubes. (For good reason…chemical reactions are fun!) When two substances are mixed together and the result is unexpected, you feel like a real chemist. I think all kids should have a chance to pretend to be a mad scientist during their childhood. When mixing a clear liquid with a yellow liquid, most kids would not predict that the result would be red. My latest science contribution to 123Homeschool4Me is just such a color changing acid-base experiment.

The most common way to determine whether a liquid is an acid or a base is using inexpensive test strips made from litmus paper. However, it is easy to make your own indicator at home. This color-changing experiment uses the spice commonly found in Indian food called turmeric.

If you would like to supplement this fun, easy-to-do chemistry experiment which a little more background science, I used the book Super Science: Matter Matters with my own kids. This engaging book aimed at kids between the ages of 7 and 11 covers a lot of introductory chemistry in a fun engaging way with pop-ups (keep out of hands of toddlers!), tabs to pull, and flaps to lift. After reading the double spread on acids and bases called “Killer Chemicals” and talking about how the planet Venus is covered with sulfuric acid rain, my 6 year old was a little hesitant to be around all the vinegars in our kitchen. His mild fear was a great starting off point to talk about the pH scale and how only the acids and bases near the ends of the scale are actually dangerous.

If you can acquire a little turmeric and rubbing alcohol and have 20 minutes to spare, I highly recommending heading over to 123Homeschool4Me to check out this really easy and engaging chemistry experiment. I promise your budding chemists will have a great time.

Look Inside a Volcano Activity

Michelle — Thu, 03 Mar 2016 14:00:08 +0000

I’m not sure there exists a more fun and easy science experiment for young kids than a homemade volcano. All you really need for a volcano science activity is baking soda, vinegar, an empty container and maybe some food coloring and your kids will be begging for more. My kids LOVE homemade volcanoes and we’ve made our fair share over the last few years. This time I decided it would be interesting if we could make the project a little more educational by creating a cutaway view of an erupting volcano.

Does your child know the difference between lava and magma? Can they identify the internal parts of a volcano? Do they know where the lava comes from? After this activity, they will. For detailed, step-by-step instructions (with pictures) and a labeled diagram of the terminology your kids can learn, head on over to 123Homeschool4Me for my latest guest post as their science contributor.

If you’re looking for some supplemental material to go along with this activity, my kids love the episode of Magic School Bus called The Magic School Bus Blows Its Top. My oldest went through a period where he was obsessed with the book version of the episode. For kids who are slightly older, Volcano: The Eruption and Healing of Mount St. Helens is a beautiful and informative book.

Don’t forget…head over to 123Homeschool4Me to see my Look Inside a Volcano activity!

Dancing Raisins Experiment

Michelle — Sun, 10 Jan 2016 14:00:32 +0000

I am so honored to have my second guest post at 123Homeschool4Me as the monthly science contributor. This month I’m sharing a really simple dancing raisins science experiment appropriate for kids from preschool through early elementary. All you need is a few raisins, a little baking soda, and some vinegar. (If you don’t have raisins, you can substitute peanuts instead.) This classic experiment helps kids visualize and better understand scientific concepts such as chemical reactions, density, and buoyancy.

Head on over to 123Homeschool4Me for a step-by-step, picture tutorial of this quick, fun, and easy science activity.

Homemade Battery Activity

Michelle — Sat, 12 Dec 2015 14:00:19 +0000

I am so honored to have been given the opportunity to be a science contributor for 123 Homeschool 4 Me. My first post on their site is up this month! Head on over to check out my really easy and inexpensive homemade battery activity.

Your kids can harness the power of electricity by putting together their own homemade batteries using items you almost certainly already have lying around your house (pennies, aluminum foil, paper towels, vinegar, and duct tape). They can then use their batteries to power an inexpensive LED. This activity is a great way to show kids in elementary and middle school how electrons moving through wires can power devices and get them thinking about the challenges involved in powering large devices. Hopefully this activity will also bring them a new appreciation for technology they use everyday from indoor lighting to smartphones.

Click here for more Electrical Engineering activities for kids.

Balloon Inflating Experiment

Michelle — Sun, 20 Sep 2015 13:00:52 +0000

This is a super simple science experiment, but one that’s impressive to young kids anyway. It’s so easy, I figured I had no excuse for not doing it at least once with my kids. I started by telling them we were going to blow up a balloon without having to blow into the balloon. (I guess technically I could have just gotten out a balloon pump at that point, but that would have been pretty anticlimactic.)

All this experiment requires is a little baking soda and vinegar, the same supplies that are used for numerous kid science experiments ranging from the mini volcano to the exploding sandwich bag. The reason it works is that baking soda (a weak base) and vinegar (an acid) react when placed in contact with each other and release carbon dioxide gas.

When the baking soda and vinegar are in open air, we see the gas as tiny little air bubbles that cause the mixture to fizz. When the reaction is closed off inside a baggie or bottle with a balloon attached, the gas is not able to escape. Instead it fills up the baggie or balloon. Fascinating, right? My 3 year old thought so.

In the experiments we did, we played around with the amount of vinegar and baking soda a bit, but were not able to make the balloon explode. If we had a bigger bottle, like maybe a 2 liter bottle, it would be fun to try again, though we should probably take the experiment outside in that case.

Recommended Age Range: Preschool, Kindergarten, Elementary
Time Required: ~15 minutes
Difficulty: Easy
Cost: Less than $1 in used supplies

Materials:

about 2 tablespoons baking soda
abut 1/2 cup vinegar
balloon
empty water bottle (or other similar container with small opening)

Supplies & Tools:

funnel
tablespoon

Instructions:

Use the funnel to add a couple tablespoons of baking soda to a balloon.

Add about an inch or 2 of vinegar to the bottle.

Carefully attach the balloon to the bottle without letting the baking soda fall in. Get excited!

Lift the balloon up so the baking soda falls into the vinegar and watch in amazement as the balloon inflates.

HAVE FUN!

Chemistry Archives - ResearchParent.com

Simple Lemon Battery

How Does It Work

Troubleshooting Tips

Simple Lemon Battery Details

Materials

Supplies

Instructions

Related Links

Red Cabbage Acid/Base Experiment

Materials:

Supplies:

Test Substances:

Instructions:

Related Links

Spinach Chromatography Experiment

Materials:

Instructions:

Related Links

Super Easy Bottle Rocket

Popular Posts

Related Links

Color-Changing Invisible Ink

Popular Posts

Related Links

Color Changing Acid-Base Experiment

Related Links

Look Inside a Volcano Activity

Related Links

Dancing Raisins Experiment

Related Links

Homemade Battery Activity

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Balloon Inflating Experiment

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