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.

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

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.

Slip some science into storm watching with a homemade rain gauge!

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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

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

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Make a spring collage with your child to get them outside and those creative juices flowing!

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

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

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

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