This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

Teach your preschooler some physics that she can relate to with this fun and simple activity!

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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!

Do you think heat can affect a plant's growth rate?

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Find out whether putting something on top of a plant will inhibit its growth.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

Ignite your kindergartener's love of adventure and learning with an imaginary trip under the sea.

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

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

In this cool science project, model how impact craters form on the surface of the moon.

This science fair project idea examines liquids of different densities.

Study how we perceive color by exploring optical illusions such as pointillism, digital images, and Ishihara tests.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

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

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

In this fun science fair project, draw a 3D picture and compare the holographic effects of red and blue 3D glasses and HD glasses!

Checkerboard play challenges students to use spatial reasoning and computational thinking.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.