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

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

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.

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

Science fair project that determines the correlation between wind direction and subsequent weather patterns.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

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

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This craft is an excellent way to learn about African-American history, and it also provides fine motor practice.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

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.

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

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.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

This project involves the programming and development of a 3D Rubik's Cube application using C++.