This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Preschoolers are fascinated by how colors can be mixed to form new ones. This activity combines color mixing with the concept of melting for extra science fun.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project idea investigates food preference of birds.

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

Science fair project that cultivates slime mold and monitors the stages of its development.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

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