15 Coolest Science Projects for Kids -- They Erupt, Explode and Stick to the Wall!

For kid scientists (and their mess-abiding parents), we've rounded up the best science projects for kids from around the blogosphere. .

Whether you need to nurture the inventiveness of your budding Albert Einstein or just have a long summer day ahead, these cool science projects for kids from will keep everyone happy and occupied.  

Coconut Volcano

Coconut Volcano Science Experiment for Kids

Parent Teach Play

From: Parent Teach Play
What You'll Need: Plastic tray, half of an empty coconut shell with "eyes" poked out, vinegar, baking soda, red food coloring, dish soap, a clean cup or bowl, a dropper, clean yogurt cup
How to Do It: Place the coconut shell open side down on the tray, over a clean yogurt cup filled about half full with baking soda. In a separate cup or bowl, mix together one cup of vinegar, a few drops of food coloring and a squirt of dish soap to make the "lava." Let kids suck up some of the "lava" mixture with a dropper and squirt it into the holes in the coconut shell. Watch the explosion!
Why We Love It: This is a fun twist on the classic volcano experiment that teaches little ones about chemical reactions. For added fun, do this one in a bathtub, letting the kids get covered in lava. The use of dropper also helps develop fine-motor skills.
Great For Kids: Preschool and up

Gummy Melt

Gooey Science Experiment for Kids

When the Kids Are Bored

From: When the Kids Are Bored
What You'll Need: Gummy candies, a bowl and a microwave
How to Do It: Place a small bowl of gummy candies (about four or five pieces) in the microwave for 30 seconds at a time until they melt
Why We Love It: Kids are fascinated by the way familiar objects can transform from one state to another. Melted gummy candies give you the chance to have a discussion about the different states of matter. Plus, you can get in there and touch the new substance, giving this easy little experiment a lot of tactile value. Bonus: you can eat your results! Just be careful that your melted candy isn't too hot to handle before kids stick their fingers in it.
Great For Kids: Toddler and up

Color Mix-up

Color Mixing Science Experiment for Kids

Learn With Play at Home

From: Learn With Play at Home
What You'll Need: An ice cube tray or other small, plastic container with several wells (like an empty egg carton), a small syringe or dropper (like those that come with children's medicines), water and food coloring
How to Do It: Put a few drops of food coloring into each small segment of your container. Have your child use the syringe to suck up a few drops of water, then squeeze it into each section containing food coloring to see what colors develop.
Why We Love It: This is a great little activity that helps develop fine-motor skills in smaller kids, and it can be a fun chemistry experiment for older kids, letting them mix the colored waters together to create brand-new ones. Afterward, use the water to create pretty patterns with the dropper on paper towels or paper!
Great For Kids
: Preschool and up

Pizza Box Solar Oven

Pizza Box Solar Oven Science Experiment for Kids

The Kitchen Pantry Scientist

From: The Kitchen Pantry Scientist
What You'll Need: One pizza box, newspapers, tape, scissors, black construction paper, clear plastic wrap, aluminum foil, newspapers and a dowel or stick to prop the lid up, some food to warm up in your oven (like marshmallows or chocolate)
How to Do It: Cut three sides of a square out of the lid of the pizza box, leaving a hinge, to create a flap. Fold the flap back and line the inside with tin foil. Cut a piece of black construction paper to fit inside the bottom of the box, and place it inside. Roll up some newspapers into cylinders and use these rolls to line the interior sides of the bottom of the box. Create a window using the plastic wrap by taping it over the hole in the box lid made by the flap. Place the "oven" on flat ground in a sunny spot, place your chocolate or other easy-to-melt food in the bottom of the box, close the lid, prop open the flap with your dowel or stick, and wait for the sun to do its work.
Why We Love It: This is a great lesson in how we can use solar power to help us accomplish tasks that we generally accomplish using fuel. And it's always fun when you get to eat your results!
Great For Kids: Preschool and up

Cloud Jars

Color Cloud Jar Science Experiment for Kids

Learn With Play At Home

From: Learn With Play At Home
What You'll Need: Water, food coloring, a clear container of water like a Mason jar or a vase, shaving cream and a dropper
How to Do It: Squirt shaving cream all over the opening of the container. This is your "cloud." Fill a second empty jar or cup with water and stir in some food coloring. Using the dropper, place drops of colored water on the shaving cream and watch as it travels through the foam and into the water below, creating colorful "rain" from the shaving-cream cloud.
Why We Love It: This is another great way to encourage fine-motor skills, but it also gives you a chance to talk about how clouds hold water and why it rains.
Great For Kids: Preschool and up

Glow in the Dark Flubber

Glowing Flubber Science Experiment for Kids

Mom 2 Posh Lil Divas

From: Mom 2 Posh Lil Divas
What You'll Need: Glow-in-the-dark paint, eight ounces of glue, Borax, water, a measuring cup, bowl and a teaspoon
How to Do It: Pour the glue into a large bowl. Fill the empty glue bottle with water, shake and squirt into the bowl, and add some food coloring. In a separate bowl, mix together one teaspoon of Borax with a half a cup of warm water. Slowly pour the Borax mixture into the bowl of glue, water and food coloring, while stirring. As the consistency changes to more of a solid, use your hands to continue mixing until you achieve a texture you like.
Why We Love It: This is a fun, tactile experiment that combines chemistry with some sensory input. Kids who normally might be uncomfortable with new textures will be more receptive to them if they actually helped create it.
Great For Kids: Preschool and up

Naked Eggs

Naked Egg Science Experiment for Kids

Kids Activities Blog

From: Kids Activities Blog
What You'll Need: Two raw eggs, a container and vinegar
How to Do It: Put raw eggs in the plastic container, cover them with vinegar and let them sit for 3 days. Remove the eggs from the vinegar, and you’re left with a translucent egg with a texture similar to gelatin.
Why We Love It: Vinegar reacts with the calcium carbonate in the eggshell, causing a cool chemical reaction. This activity could not be easier, takes very little clean up, and gives kids a very cool result.
Great For Kids: Toddlers and up

Faux Lava Lamp

Oil Lava Lamp Science Experiment for Kids

Mom 2 Posh Lil Divas

From: Mom 2 Posh Lil Divas
What You'll Need: A clear, empty soda, bottle, Alka Seltzer tablets, food coloring, a funnel, water and cooking oil
How to Do It: Fill your bottle two-thirds full with oil. Pour water into the bottle using the funnel, leaving some space at the top. Add some food coloring, and then drop small pieces of your tablet into the bottle. Observe the effects!
Why We Love It: Who doesn’t love a good lava lamp? You can talk to your kids about the density of water, oil and food coloring, and observe a cool chemical reaction.
Great For Kids: Preschool and up

Crystal Art

Crystal Egg Science Experiment for Kids

Momma's Fun World

From: Momma's Fun World
What You'll Need: Pipe cleaners, Borax, boiling water, yarn, a pencil and a glass Mason jar
How to Do It: Form your pipe cleaner into your desired shape. Tie some yarn around it, tie the other end of the string to a pencil, and suspend it from the pencil. Pour hot water into the Mason jar, add one cup of Borax, and let it dissolve. Drop in your pipe cleaner, using the pencil to suspend it from the top. Let it sit for at least four hours or overnight to form crystals.
Why We Love It: Kids will work on fine motor skills doing this activity, and the results are a cool way to jumpstart a conversation about how crystals are made.
Great For Kids: Toddlers and up

Fake Lungs

Balloon Lung Science Experiment for Kids

Science Sparks

From: Science Sparks
What You'll Need: A straw, play dough, plastic bottle, elastic band, and scissors
How to Do It: Cut off the bottom of the bottle and tie a knot in one end of the balloon. Snip off the top of the balloon. Stretch the open end around the bottom of the plastic bottle. Place a straw in the neck of the other balloon. Put the straw and the balloon into the neck of the bottle, securing it with play dough at the opening and making a seal around the bottle. Use the straw to inflate the lung.
Why We Love It: The balloons mimic the action of our real lungs, showing kids how our lungs and our diaphragm work together.
Great For Kids: Preschool and up

Water Bottle Fountain

Balloon Water Fountain Science Experiment for Kids

Learn With Play at Home

From: Learn with Play At Home
What You'll Need: Empty water bottle, straw, balloon and putty adhesive
How to Do It: Poke a hole in the side of the empty bottle using a pen, and insert the straw into the hole. Seal the hole around the straw with adhesive. Inflate the balloon and place it over the mouth of the bottle, being careful not to let too much air escape. When you let go of the balloon, the air will push into the bottle and force the water out of the straw.
Why We Love It: We love the way this activity reinforces the idea that air is always present, even when we can’t see it. Plus, it’s fun to play in the water!
Great For Kids
: Preschool and up

Color Changing Flowers

Color Changing Roses Science Experiment for Kids

Octavia and Vicky

From: Octavia and Vicky
What You'll Need: White flowers (like carnations or tulips), small, clear vases, water, food coloring and scissors
How to Do It: Fill the containers with colored water. Snip the stems of the flowers and place them in the vases. Leave for several hours or overnight to see how the colored water travels up the stems and changes the colors of the petals.
Why We Love It: Kids will love the pretty results -- and you'll love being able to show the way plants absorb water. You can alter this experiment by adding scents to the water, powdered chalk or even different colored juices.
Great For Kids: Toddlers and up

Static Electricity in Action

Static Electricity Science Experiment for Kids

Mama Smiles

From: Mama Smiles
What You'll Need: A balloon or the small, air-filled packets that come in shipping boxes
How to Do It: Just rub the balloon or air packet on your child’s head and stick it to the wall.
Why We Love It: This is a simple classic! Your kids will think you’ve got magic -- it's up to you if you want to clue them in to the principles of static electricity.
Great For Kids: Toddlers and up

Mentos Geyser

Coke and Mentos Rocket Science Experiment

Tinkerlab

From: Tinkerlab
What You'll Need: Diet Coke, Mentos mint candies, a piece of paper and a place to create a big mess
How to Do It: Open the bottle of soda, make a tube from the piece of paper, insert it into the opening of the bottle, use it as a funnel to drop three or four Mentos into the soda. Then, run for the hills and watch it explode!
Why We Love It
: This is a classic experiment that teaches kids about nucleation. You can also vary the activity by using different types of soda and liquids to see how big (or small) an explosion will occur based on the ingredients in your beverage.
Great For Kids: Elementary school and up

Ivory Soap Explosion

Soap Foam Explosion Science Experiment for Kids

Mom to 2 Posh Lil Divas

From: Mom to 2 Posh Lil Divas
What You'll Need: Ivory soap bar, a microwave and a plate or towel
How to Do It: Cut the bar of soap into quarters, place in microwave on a plate or towel, and cook on high until you see the soap change, in 30-second increments.
Why We Love It: Another super-simple experiment with fun tactile results, this activity is a great way to teach older kids a little chemistry and also how to use the microwave. But it still offers lots of fun for younger siblings, who will love the new texture of the soap and how an ordinary and familiar object can be radically transformed.
Great For Kids: Toddlers and up

Amy Hatch is a freelance writer and editor and mother of two based in Urbana, Ill. She is also co-founder of chambanamoms.com and has appeared as a parenting expert on the Dr. Phil Show and FOX News. Find her on Twitter @chambanamoms.com.

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