Homeschool Ideas

10 Cool Science Projects For Kids

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Are you looking for some fun and educational things to do with the kiddos at home? Look no further! Below are 15 science experiments that can be done at home, and you may already have everything you need in the cabinets.


Self-Inflating Balloon: Using a balloon filled with 3 tsp. of baking powder and a bottle 1/3 full of vinegar, put the balloon over the mouthpiece of the bottle. When the bottle is sealed and the baking powder is dumped from the balloon into the vinegar, the balloon will inflate.

Bonus: Why does this happen? Baking soda and vinegar react with each other because they exchange atoms!


Oobleck!: Pour 2 cups cornstarch into a bowl, add 1 cup of water and stir to combine. You can add food coloring while mixing if desired.

Bonus: Cornstarch mixed with water is a non-Newtonian fluid. That is, it acts like a liquid when being poured, but like a solid when a force is acting on it.


Water Density: Fill two clear glasses full of water. Add salt to one glass until the salt will not dissolve. Put food coloring in both glasses and see how the food coloring acts differently!

Bonus: The salt water is more dense than the food coloring so it sinks to the bottom.


Layer up fluids: Slowly layer these fluids in the following order: honey, corn syrup, dish soap, water, vegetable oil, and rubbing alcohol. See how they remain separate and create a rainbow.

Bonus: The fluids are layered in order of density from the most dense to the least dense, which allows them to maintain separation between the layers.


Naked Eggs: Place raw eggs (shell on) into a container and cover the eggs with white vinegar. Leave them for 24 to 48 hours at room temperature.

Bonus: Vinegar is acidic which reacts with the calcium carbonate shell of the egg. In the process, it releases carbon dioxide gas that you see as bubbles on the shell.


Watch a Bar of Soap Grow: Put a bar of ivory soap into a large microwavable bowl. Microwave it on high for two minutes.

Bonus: The soap expands because the air bubbles inside of it expand as they heat up.


Lava lamp: Fill a jar most of the way with vegetable oil, and fill the remainder with water. Add food coloring and pieces of a broken alka-seltzer tablet one at a time.

Bonus: Water is the more dense fluid which causes it to sink to the bottom of the jar. Oil lacks polarity (an electrical charge that attracts other atoms) and does not attract other molecules so it does not mix with the water.


Send a Secret Message: Squeeze a lemon into a glass and use a cotton swab to write a message or draw a picture on a sheet of paper. Wait for it to dry and disappear. Use the heat of a blow dryer to reveal the “secret message.”

Bonus: As the lemon juice heats up, it will oxidize (react with oxygen) and turn brown.


Create a Volcano: Fill a plastic cup 2/3 full of water. Add 4 tbsp of baking soda, 1 tsp of dish soap, and 1/2 oz to 2 oz of washable paint. When you are ready for an eruption, add 1 cup of vinegar!

Bonus: When baking soda and vinegar react together they form carbonic acid which is unstable and breaks apart into water and carbon dioxide, which creates all the fizzing as it escapes the solution


Instant Ice: Put an unopened bottle of purified water into the freezer for a little less than three hours. Pour this super-cooled water onto a piece of ice and watch the ice grow.

Bonus: The water is chilled well below the temperature at which water freezes, but hasn’t quite frozen yet. When ice freezes, the water forms small crystals that gradually spread. Pouring this water over an ice cube triggers crystals to form faster than they normally would.

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