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This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This classic children's game demonstrates how sound travels through air vs. through a solid.

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.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

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

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Have your child kick off their summer vacation by making a miniature water slide!

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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

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 determines what household items are good conductors of electricity.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Learn about nature by making your own mini moss garden.

Make edible amber fossils with your second grader to explore the fascinating world of science!

This science fair project idea determines what household items are good conductors of electricity.

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

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.