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

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.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

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

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

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

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

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

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

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

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

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.

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.

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

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Examine the presence of seeds in open fields. Collect seeds on socks by walking through open fields of grass or other growth. Germinate seeds on socks

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

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

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

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Science fair project that creates fog using bottles of hot and cold water.