Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Learn about Ikebana, or the Japanese art of flower arranging, with your child while artfully arranging spring flowers!

Invite your kindergarten marine biologist to practice in scientific identification and categorization while creating a lovely treasure box.

This science fair project idea explores the different properties & interactions of sugar molecules.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Make sourdough bread...and learn some colonial history and modern science in the process!

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This science fair project idea demonstrates that plants give off water.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

This science fair project idea examines which type of insulation holds in the most heat.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Using a toy race car kids create a visual model of the Doppler Effect.