Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea explores which fruit molds the fastest.

This science fair project determines the quality of a given product.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Determine if left-handed people have faster response times.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

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

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

Give your budding young observers a chance to discover simple machines at use in their own home.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

The purpose of this science fair experiment is to investigate whether the color of your hair affects how much static electricity is carried.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

Free science fair project idea examining how different types of water affect plant germination and growth.

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

Looking for a project on fossils? Check out this fun science fair project idea to understand the process of coal formation and fossils part in that formation.

This high school science fair project investigates if small changes in your diet alter the pH of your saliva.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

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