In this science fair project, students use the streak test to tell minerals apart from each other.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

This science fair project idea experiments with spinning color wheels and optical illusions.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea investigates how color affects temperature.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

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.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.