Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

In this science fair project, students create their own miniature salt flats at home.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

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

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.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

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

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

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

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

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Looking for a fun earth science project on continental drifts? Check out this fun science fair project idea to explore how Pangaea may have broken up.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Science fair project that builds a magnetometer and demonstrate its uses.

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