Free science fair project idea examining how different types of water affect plant germination and growth.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Determine if it is easier to memorize colors, words, words in phrases, pictures or numbers. Determine at when retention rate in each category is the best.

This science fair project idea determines the most effective method of preserving food.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Find out whether packaged seeds actually do expire in this new science fair project idea.

In this fun experiment, we'll find out how color affects heat absorption!

Compare the ignition rates of various types of flame-retardant materials.

This science fair project idea investigates how the shape of an object affects drag.

This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.

Which bread molds fastest? Explore the different kinds of breads and how quickly they mold, along with the role of preservatives.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

This experiment investigates if stress alters body temperature.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.