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Science Experiments Aren’t Just For Science Fairs

3 Science Experiments for Summer Exploration

We love Science projects at our house. They indulge our creativity, help us problem solve and build great foundations for learning. Science Experiments fill the gap in our Summer. They bounce us back from the “I’m bored” mode and into a world of fun.

While these 3 simple but fun science experiments would be hits at science fairs: the backyard rocket launcher, the egg squeezer, and how to produce carbon dioxide, they also double as some great summer fun.

Looking for awesome science fair projects that will leave other kids goggle eyed and entertain your kiddos? You can, with just a few materials that are easily available at home.

Backyard Rocket Launcher

You’ll need:

A Styrofoam plate
A toilet paper tube
Marker pens

Camera film canister
Baking soda
(or *Alka-Seltzer tablets and water)

1.  Use the markers to make your own design on the toilet paper tube. This will be your rocket launcher.
2. Tape the rocket launcher to the center of the Styrofoam plate.
3. Then make your very own rocket fuel by putting 1 tablespoon of vinegar in the film canister.
4. Hold the canister near the launcher and add ½ teaspoon of baking soda.
5. Quickly snap on the lid and drop the canister into the launcher, lid side down.
*Alternatively, put 1 tablespoon of water into the canister then add half an Alka-Seltzer tablet and quickly snap on the lid.
6 Drop the film canister into the launcher, lid side down, then stand back! The rocket will launch in 10-20 seconds. (If the rocket doesn’t launch, wait at least a minute before checking.)

The Egg Squeezer

This experiment will show the principle that heat causes most solids and liquids to expand, and cooling causes them to contract.

You will need: 

A peeled, hard-boiled egg
A long-necked bottle with opening that is slightly smaller than the egg
3 matches


1. Place the long-necked bottle on your kitchen table (or any table free from flammable debris).
2. Light 3 matches and drop them all at once (not one at a time) into the bottle.
3.  Quickly put an egg on top of the bottle opening.

The egg will be sucked into the bottle.

How It Works:

The lighted matches heated the air, causing it to expand. When the matches are extinguished, the air contracts as it cools. This lowers the pressure inside the bottle than on the outside. A lower pressure is created within the bottle, than on the outside. The pressure outside the bottle causes the egg to get sucked into the bottle.

How to Produce Carbon Dioxide

This simple experiment shows that mixing an acid and a base triggers a chemical reaction that releases carbon dioxide.

You will need:

A clear plastic or glass container
Baking soda
Food coloring
Raisins or cereals


1. Fill the container almost to the brim with 3 parts water and one part vinegar. Be sure to leave some room at the top of the container.
2. Slowly add one teaspoon of baking soda. Putting the baking soda all at once and too quickly will make the liquids bubble over the top.
3. When the bubbles settle down, slowly add a second teaspoon of baking soda.
4.  When the bubbles settle, add a few drops of food coloring.

Now comes the fun part.

5. Find some items, like raisins, rice, or cereal. Drop in a few of the first item. They will sink to the bottom, but after a few minutes they will rise to the surface, then sink again. Try the rice, and watch it dance! If the movement seems to be slowing down, add another teaspoon of baking soda.

How It Works:

What has happened? The vinegar is an acid and the baking soda is a base. When you combine them, a chemical reaction produces carbon dioxide. The carbon dioxide bubbles build up on the surface of the object. When enough bubbles attach to it, the object floats to the surface and releases the gas. Then it sinks back to the bottom to start the process again.

Disclosure: I received no monetary compensation for this post.

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