In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

This science fair project idea explores the egg's thin membrane.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

This science fair project will help students learn about non-vascular plants, such as mosses.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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

In this experiment we will be determining whether birds prefer certain colors of seed.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

In this project students experiment with making music using only glasses of water.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

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

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.

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.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

Examine the effect of pressure on carbonation in soda.

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