Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

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

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

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

This science fair project idea investigates the relationship between memory and age.

This science fair project idea determines which flower lasts the longest.

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

The objective of this science project is to determine the length of time for different seeds to germinate.

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

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.

This project examines whether humans can intuitively grasp numeric values greater than three.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

This science fair project idea determines if the color of light affects the growth of plants.

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

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?

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

This science fair project idea investigates whether plants can survive being frozen.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

This science fair project challenges students to research and interact with the animals and plants that live in tide pools and test a practical use of tidepools

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

The objective of this science project is to investigate patterns in fingerprints among family members.

This science fair project idea investigates food preference of birds.