Use a dichotomous key to identify plants or animals.

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

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.

Science fair project that determines whether moths are attracted to one color of light more than others.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

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

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

The goal of this project is to create an exciting topographical map out of dough.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This science fair project determines the quality of a given product.

This science fair project idea discovers the principle of conservation of mass.

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

Science fair project that examines the biodiversity of ant populations in various locations.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

This science fair project examines whether ocean water can be made safe to drink.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Science fair project in which you will start a fire from scratch without using matches or a lighter.