Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science project allows students to study the psychology of happiness.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This science fair project idea explores the egg's thin membrane.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

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

This project determines what category of person is most likely to be ticklish.

This project investigates the affect of storage temperature on microwave popcorn.

In this experiment, the weight of aluminum cans will be compared.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

This science fair project idea explores how length affects the weight a bridge can hold.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

The objective of this science fair project is to investigate salt water density.

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

This experiment tests which gender is better at catching how a magician performs his tricks.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.