This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Think about the adaptive utility of an important aspect of our physiology.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

Examine the connection between temperature and chemiluminescence.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Explore the relationship between personality traits and birth order effects.

Explore the belief in astrology as a predictive system.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Science fair project that examines search engine optimization, internet search trends using a statistical study of searched keywords.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

A fun, life science sxperiment idea idea involving strategies for keeping birds away from crops using a distress call. What kind of distress call works best?

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Learn about the factors that influence group conformity.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

A cool physics science fair project idea for 7th grade exploring the application of distance, velocity, and time equations.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?