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.

Practice conversions within the metric system in this fun math card game for third graders.

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

This science fair project idea identifies clouds as a means of predicting the weather.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Use familiar household items and decorations to turn estimation into a fun game!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

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.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

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!

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

This project tests the hypothesis that dark colors absorb more heat than light colors.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

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!

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Have your student draft a blueprint for a haunted house, and trick (or treat) them into learning about geometry in the process.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.