This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Here's a simple activity to reinforce your fourth grader's study of her home state and help her make a pretty keepsake.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Have a bookworm on your hands? They'll boost their spelling and problem solving skills with this Oulipo activity re-writing lyrics to beloved Christmas songs!

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Challenge your child to create a lipogram, or a piece of writing that omits one specific letter. This activity strengthens writing and language skills.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Here's a hands-on activity that helps your child understand the concept of "circumference."

This science fair project idea explores whether color affects a person's emotional state.

Explore if planting seeds in a certain direction will affect how fast it germinates.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Let your aspiring poet use book titles to create a funky and visually-appealing masterpiece!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Ready for a game that's mostly about strategy with a little luck thrown in for good measure? Make math fact practice exciting and start rolling the dice!

In the mood for a little lighthearted magic? Make your own chi chi sticks, inspired by the divination tools of ancient Chinese fortune tellers.

A valentine wreath brightens up any home on Valentine's Day. Craft a pretty valentine wreath out of colorful chocolate kisses.

This science fair project idea explores whether white light can be separated into different colors.

Textbook studying doesn't have to be a slog. Here's an at-home activity for before your middle-schooler begins those end-of-the-chapter review questions.