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In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Take a dive into the candy jar with this yummy science experiment.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

Cleaning can be a chore, but not with this sudsy experiment!

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

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.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.

This science fair project idea tests the efficiency of short term memory.

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

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

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

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.