This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This science fair project idea explores how length affects the weight a bridge can hold.

Your child can create a special winter headband with the help of some white felt and a length of silver ribbon.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Make learning how to calculate surface area easy and fun using this simple hands-on approach.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Invigorate your fourth grader's mind by helping him turn his room into a woven masterpiece using various lengths of material.

Here's a hands-on activity you can do with your fourth-grader to practice measurement and directly apply the concept of area.

Have your child make a holiday scarf with inexpensive materials, no sewing required!

Challenge your child with this exciting 2D to 3D project using a sheet of construction paper, oil pastels, and scissors.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Here's how to create an easy travel checkers board that you are your child can enjoy together using simple materials.

This fun activity encourages your child to develop their skills in not only taking measurements, but also in working with the measurements themselves.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

A woven heart makes a thoughtful and heartfelt gift for a special friend or family member on Valentine's Day. Make a woven heart with your young crafter.

Find the area in this fun math card game. You'll help your child start thinking in terms of units as you create shapes out of playing cards.

Discover which fabrics shrink the most in the wash and why.

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Kids will have a hoot constructing this cute owl craft from a recycled toilet paper roll.

Make unique and pretty bracelets using that all-purpose mainstay of crafts and home repair: duct tape!

An easy afternoon craft, this reusable heating compress is just the thing for warming cold limbs on chilly winter days.

Build second and third grade writing skills by using pictures to help kids "see" how to use details in their stories.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Have a kid who loves to bead, but can't seem to keep them all in one place? Use those loose beads to craft a decorative wind chime.

Make this door curtain to brighten up your home and learn colors and patterns.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Find out whether a longer airplane will fly farther or a wider paper airplane.