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Air Pressure Science Project

Help your kids learn about and understand air pressure by helping them understand that air is real, expresses energy, and exerts pressure with these fun, hands on science projects for kids of all ages. This is a wonderful introduction to be able to understand how airplanes fly.

Learning About Air Science Experiments - So many fun, unique, and meaningful science projects to help kids understand air is real, express energy, exert pressure, and how airplanes fly.

Air Pressure Science Project

Kids are going to be so impressed when learning about air with these amazing Air Pressure Science Project.


air is real science experiment for kids

Show kid that air is real. Show them an empty soda bottle and ask them what is inside – chances are they will say nothing. Now put a balloon over the top.

Set 2 liter bottle in boiling water and watch the balloon inflate. (as air is heated the molecules spread out)

If it were empty how could it inflate? Air is real – we just can’t see it!


Air Expresses Energy

air expresses energy science project

You will need an empty soda can which you put just a little water in. Now heat it on the stove until hot. Meanwhile get ready a large bowl of ice water.

Now using tongs quickly put the hot can in the very cold water. It should collapse.


As the water was brought to a boil, the can quickly filled with steam which pushed out all the air. When the steam is cooled off by the cold water, it condenses into a few drops of water, leaving a vacuum in its place. The air crushes the can as it tries to get inside.
Think of examples of air pressure in nature: wind, tornado, or even when your ears pop when the plane goes up.

Air Pressure and Straws

air pressure and straws science experiment
Pick two children to compete in this science project. They should both have a glass containing a beverage. Put a straw in each glass, but one of the straws should have holes in them. Have the children compete to see who can drink the liquid the quickest.
The child trying to drink out of the straw with holes in it will be unsuccessful. Give them a new straw to drink and then explain about air pressure and straws.
When you sip on a straw, you lower the air pressure inside the straw. As a result, the outside air pressure, which is greater, pushes down on the surface of the liquid, forcing it to move up the straw. When some of you sipped on the straw with the holes, however, the air pressure was pulled directly inside via the holes. The pressure did not exert itself on the water, so the water did not rise up your straw.

Egg in a Bottle Science Experiment

egg in a bottle science experiment
Explain that just like water contracts when frozen or expands when heated, air does as well. Demonstrate this by giving everyone a bottle with an opening that is too small for the hard boiled egg to fit through.
Have an adult light a fire on a rolled up piece of paper and quickly drop it in the bottle. When the flame has gone out quickly set the egg on top of the bottle – watch as the egg is sucked into the bottle.
When the fire goes out it cools off and shrinks, or contracts. As it contracts, it leaves a partial vacuum inside. The outside air that was pushed out earlier then pushes the egg into the bottle as it tries to get back inside.
egg in a bottle in reverse science project for kids
Now reverse the experiment. Place the bottle in a bowl of very hot water. The air expands and needs somewhere to go so it will push the egg out to have more room.

Here you can see our Egg in a Bottle Science Experiment in reverse!

100 Amazing Food Experiments for Kids - so many clever edible science projects for kids of all ages to explore chemistry, biology, physics, and earth science! #scienceexperiment #scienceproject #kidsactivities capillary-action-science-experiment-for-kids DIY Lava Lamp - super easy way to make your own lava lamp with simple things you have around your house. This homemade lava lamp is such a fun science project for kids of all ages to sneak in some summer learning. This science experiment is for toddlers, preschoolers, pre k, kindergarten, first grade, 2nd grade, 3rd grade, and kids of all ages at home, homeschool, summer camps, classroom, etc.

Science for Kids

Looking for lots more fun, science experiments for kids? You’ve GOT to try some of these outrageously fun science experiments for kids! We have so many fun, creative and easy science experiments for elementary age children:

This amazing color changing slime is going to blow your mind! This heat sensitive slime will actually change color as your kids touch it because it is heat sensitive! This is a super cool project for kids you MUST TRY! Must try summer activity for kids to add to their summer bucket list  Help kids learn about what is under their skin with this fun, interactive, and hands on human body project for kids from toddler, preschool, pre k, kindergarten, first grade, 2nd grade, 3rd grade, 4th grade, 5th grade, and 6th grade students. This can be a simple life size human body project or use our free printable templates to add bones of the body, organ templates, and more. This engaging science project is EASY and LOW PREP too.  dying flowers science experiment

About the author

Beth Gorden

Beth Gorden is the creative multi-tasking creator of 123 Homeschool 4 Me. As a busy homeschooling mother of six, she strives to create hands-on learning activities and worksheets that kids will love to make learning FUN! She has created over 1 million pages of printables to help teach kids ABCs, science, English grammar, history, math, and so much more! Beth is also the creator of 2 additional sites with even more educational activities and FREE printables - www.kindergartenworksheetsandgames.com and www.preschoolplayandlearn.com

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