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.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

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

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

The objective of this science project is to determine the length of time for different seeds to germinate.

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

Avoid holiday card clutter by arranging cards into an artfully simple display: pin them to a length of yarn with classic wooden clothespins.

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

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

This hands-on activity that involves arranging pieces of yarn will teach your pre-K child the concept of ordering items by length in an interesting way.

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.

Your child can brush up on her math skills by charting the length of time that each candle on the menorah takes to burn.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

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.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

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.

Help your teen turn her favorite thick ribbon into cute, crafty curtains! She can make a set of wavy blinds or a wall hanging to add some flair to her room.

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

Celebrate our founding fathers and the parchment they wrote on with this DIY scroll project.

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.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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.

Let your child celebrate the season with this recycled craft that turns paper tubes into sweet reindeer ready to be filled with holiday goodies.

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