Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Evaluate the efficacy of different pain management techniques.

Compare different remedies for cooling the mouth after eating spicy food.

This experiment will evaluate how texting and talking on cell phones influence reaction time.

In this project, a magnet is used to collect iron from breakfast cereals.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

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

This science fair project idea determines if the color of light affects the growth of plants.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

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.

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.

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.