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Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

Kids learn about the color rendering index by finding the best lightning for makeup in this fun and original physics science fair project idea.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

Get a fun high school physics science fair project idea one of the states of matter called plasma and the applications of this unique coil.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

Identify vitamin C in fruit juices and to determine which of the following juices contain the most vitamin C

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!