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

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.

Turn any sunny summer day into a fun and special occasion by having a watermelon seed spitting contest!

How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

Any time is the perfect time to whip up a delicious batch of fluffy pumpkin cookies.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This little chick is so cute that your child will want to make a whole flock to call her own.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Use this great no-bake recipe to save energy and keep cool.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.