This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Help your child learn about animal classification with this fun and delicious activity.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

This science fair project idea identifies trees using a dichotomous key.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Help your child make a beautiful homemade sandcastle that will last!

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Slip some science into storm watching with a homemade rain gauge!

In this design challenge, your child will make a bottle rocket using typical household items.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

It's easy to plant your own in-home container garden! This planter contains pizza-themed herbs and is a perfect early gardening activity for kindergarteners.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.