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This science fair project examines whether ocean water can be made safe to drink.

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

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This science experiment tests if dog saliva can really help heal wounds.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

introduction to organic chemistry. study what happens when polymer molecules are mixed with borax solution.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This project concerns activity happening millions of miles away, on the sun.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.