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

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science research project challenges students to think of more effective lobster farming methods.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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.

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

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

The project investigates how water and movement affects erosion.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Science fair project that determines whether mass and weight are the same or different.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

In this project, the affect of acid rain is simulated by the acid, vinegar.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

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.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.