Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

This science fair project idea assesses the effect of music on work performance.

In this project, different childproof containers are tested to see how childproof they really are.

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.

Use a dichotomous key to identify plants or animals.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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.

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.

Science fair project that examines condensation and the conditions needed in order for dew to form.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.

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.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

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.

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

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.

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.

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.

This experiment investigates if stress alters body temperature.