With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

This activity is a fun challenge for students who have just started learning to program educational robots.

In this kindergarten activity your child will create a map of your house and use a magnet to move pictures of your family through the house!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

In this activity, your child will be challenged to make a tower using paper cups.