100 Easy Science Experiments for Kids To Do At Home (2025)

Homemade Slime (Polymers & Viscosity)

What kid doesn’t love slime? This is one of our favorite science experiments because it’s a sure kid-pleaser! In this basic recipe for slime, you can make some of your own right in your kitchen, and have fun squeezing it with your bare hands all day long.

More Quick Chemistry Experiments:

• Rock Candy Experiment – Grow colorful rock candy in a glass!
• Naked Egg Experiment – Dissolve an eggshell with vinegar and see the membrane below!
• Balloon Magic – Blow up a balloon without blowing, using vinegar and baking soda.
• Egg Teeth – Explore how sugar affects teeth in this easy experiment.
• Tie Dye: Create vibrant tie-dye patterns while learning about absorption and chemical bonding as dyes react with fabric molecules, becoming a permanent part of the material!
• Make Butter – Shake cream and turn it into butter!
• Ice Cream in a Bag – Turn simple ingredients into delicious ice cream.
• Moldy Bread Experiment – See how important it is to wash your hands in the viral science experiment.
• Exploding baggie – Use a simple chemical reaction to explode a plastic zip close baggie. 
• Flame-Proof Balloon – Use cold water to make a balloon resistant to a fire’s flame!
• Rotten Banana Balloon – Use that rotten banana in your kitchen to blow up a balloon. You can also try it with a lemon. (Here’s the Lemon Balloon Trick.)
• Mouth-Foaming Fun – Experience a chemical reaction first hand while brushing your teeth.
• Smashing Seashells – Discover how to easily smash seashells with vinegar.
• Super Bubble Solution – Find out how you can make giant bubbles with an easy homemade solution.
• Water Fireworks – Create fireworks in a glass of water using this simple experiment with household ingredient.
• Dancing Corn Experiment – Explore and investigate carbon dioxide by making corn dance. 
• Homemade Bouncy Balls – Make your own bouncy ball toys with household ingredients.
• Steel Wool & Vinegar Experiment – Get a better understand of how things rust!
• Magic Milk Experiment: Create colorful swirls in milk by adding dish soap, which breaks down the fat molecules and causes the colors to move and mix in a mesmerizing display!
• Melting Snowballs: Create “melting snowballs” by freezing baking soda and water, then adding vinegar to watch them fizz and dissolve in a fun acid-base reaction experiment!

More Quick Physics Experiments:

• Giant Dish Soap Bubbles – Make a giant bubble with household ingredients.
• Layering Liquids – See how liquids can stack on top of each other according to density.
• Liquid Sandwich – Learn about density with water, oil, and honey.
• Step Through an Index Card – Amaze your kids by stepping through an index card that’s been strategically cut.
• Frozen Bubbles – Find out what happens when you blow bubbles in freezing temperatures.
• Big Stick Balance – This surprising experiment will teach kids about balance.
• Upside Down Reflection – All you need is a kitchen spoon to learn about the principles of reflection.
• Soap Boats – Explore density with this easy DIY boat-making activity.
• Water Bending Trick – Learn how to bend water with one simple thing you have lying around your house.
• Dry Paper Experiment – See how you can magically dunk paper in water and not make it wet.
• Bending Straw Illusion – Learn about light refraction in this quick and simple experiment.
• Magic Napkin – Learn about inertia with a napkin and a plastic cup filled with water.
• Talking String – Learn about sound waves and make a string “sing” by using one simple button.
• Noisy Paper – Create a loud vibration noise with just two pieces of computer paper.
• Make a Rainbow – See how you can easily create your own rainbow.

More Quick Biology Experiments For Kids

• Map Your Taste Buds – Learn about your taste buds in this easy mapping activity.
• Growing Gummy Bears – Watch gummy bears grow before your eyes.
• Foot Fat Experiment – Compare the levels of fat in different foods with this simple experiment.
• Fingerprinting – Dive into the infinite world of fingerprints with a no. 2 pencil and paper.
• Sunscreen and Skin – Learn about the human body and how sunscreen works with this simple experiment using sunscreen and construction paper.
• Taste Bud 101 – Learn about the taste buds with this fun and interactive experiment.

More Quick Earth Science Experiments:

• Solar Oven S’mores – Cook up a tasty snack in a solar oven.
• Human Sundial – Become a human sundial to learn about solar patterns.
• Windowsill Trash – Demonstrate how the heat of the sun helps trash decompose
• Tornado in a Bottle – Create a cyclone in a bottle in this classic, simple experiment.
• Make a Sundial – Learn how to tell time with the sun by making a simple sundial.
• Shaving Cream Rain Clouds – learn about the water cycle with shaving cream. The shaving cream represents the rain cloud and the water is the atmosphere.

More Engineering Experiments for Kids:

• Egg Drop Project – See if you can build a contraction to protect an egg from breaking.