Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

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

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Help your kindergarten science maven explore the water cycle without getting everything wet.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea demonstrates that plants give off water.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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.

This science fair project examines how seeds hitchhike on animals and clothing.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Learn all about balance and motion as your child designs a corn maze!

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

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