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.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

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 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 whether white light can be separated into different colors.

Take a dive into the candy jar with this yummy science experiment.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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

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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This project investigates the affect of storage temperature on microwave popcorn.

Examine the effect of pressure on carbonation in soda.

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

Explore if planting seeds in a certain direction will affect how fast it germinates.

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

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

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Learn all about balance and motion as your child designs a corn maze!

This science fair project examines how seeds hitchhike on animals and clothing.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project idea determines the most effective method of preserving food.