Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

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

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This science fair project idea examines liquids of different densities.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

Find out whether putting something on top of a plant will inhibit its growth.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

The goal of this project is to create an exciting topographical map out of dough.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.