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.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Here's a pressed leaf card project that puts science and writing together for your second grader.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

Is it a square or a circle? See if you can trick your friends with this zany science project!

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

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 idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

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

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this activity your child will create their very own marble maze!

In this project children practice the scientific method while playing with puffy paint.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Start your toy engines -- this is going to be a fast and friction-filled race!

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

This science fair project idea investigates how the shape of an object affects drag.