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Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Tackle both boredom and mathematics with this inventive arts and craft project!

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

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

Determine whether the application of Febreeze will lower the bacterial count.

Invite your first grader to play this subtraction sacks game to get her actively involved in understanding and memorizing subtraction facts.

Pfeffernusse are spicy and sweet Christmas cookies from Germany. Make a batch of traditional pfeffernusse this holiday season.

Based on the popular "I Spy" game, this activity lets your kid practice important skills like number identification and place value.

Engage your children with this fun fall activity that integrates math and science. First, your child will excavate to find leaves. Next, they'll examine them to determine the colors. Then, your child will graph their findings.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

In this preschool counting game, kids learn to count with their fingers, but without their eyes!

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

Make this paper chain calendar and give your child a visual reminder of the passing of time.

Halloween is approaching, so why not create some ghost flash cards that will help your child learn their numbers the spooky way?

Cookie catastrophe! In this project you will determine if different types of cookie sheets can cause cookies to bake differently.

This project compares different liquids and the freezing, melting and boiling points of liquids.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Put your kid in charge of her own survey! She'll poll her relatives and friends, collect information, and then create a colorful chart to display her findings.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

Shamrock Stamps are a great way to celebrate St. Patrick's Day. Simple and symmetrical, this symbol of Irish culture is the perfect shape for prints.

Play a game of "restaurant" to reinforce real-world applications of counting and using money.

This Christmas plate features your child's favorite holiday things through drawings. Make a Christmas plate with your child this holiday season.

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

Most timeline activities are all about history. Make timelines more relevant and personal for your child by focusing on the hours and minutes of his day.

This project explores whether music affects the growth and health of plants.

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

Counting with one-to-one correspondence is an important kindergarten math skill. This simple activity turns it into a play-anywhere game.