Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

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

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

This experiment investigates if small changes in your diet can alter your basal body temperature.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

A food groups plate shows your child what category her foods belong in. Make a food groups plate with your child before dinnertime.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

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

Solve the mystery of the unpoppable balloon in this 7th grade science experiment that demonstrates the process of heat transfer.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

This very physical game gets math off the page and into the real world-- and it works on number sense and estimation, key skills for kindergarten readiness.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

Get back into school with this exciting architecture exploration! In this craft activity your child will research, draw, and build his own school.

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Pumpkin carving party activities are great for a pre-Halloween party. Try pumpkin carving party activities, including jack-o'-lantern ideas and fall recipes.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

Science fair project that creates fog using bottles of hot and cold water.