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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

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

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

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 science fair project idea raises awareness of a real ecological issue.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Check out this cool science fair project on identifying rocks and minerals for kids.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

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

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.

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.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

This science project researches the correlation between barometric pressure and wind velocity.

This science fair experiment examines the relationship between gender, age, and smiling.

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

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.