4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

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

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

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!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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 learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Help your child celebrate the summer and the sun by making a sandy seascape.

This science fair project idea compares biodiversity between drops of water.

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!