This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

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

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Examine the connection between temperature and chemiluminescence.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

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

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

Encourage your child to compare and contrast a wide variety of autumn-themed items by weighing various objects and recording their findings.

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

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

This science fair project investigates how temperature of a room affects the burn rate of a candle.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

Do you think heat can affect a plant's growth rate?

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

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

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

Science fair project that cultivates slime mold and monitors the stages of its development.

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

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

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.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Determine which metal has the highest rate of conductivity.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

This simple experiment serves as an introduction to the greenhouse effect.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.