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

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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.

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.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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.

The project investigates how water and movement affects erosion.

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

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

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.

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.

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.

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.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

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.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.