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The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Discover whether a metal will expand under hot water.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

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

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 investigates why the number of visible stars changes from place to place.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

This simple experiment serves as an introduction to the greenhouse effect.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science experiment tests if dog saliva can really help heal wounds.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.