Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

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

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

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

This science research project challenges students to think of more effective lobster farming methods.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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 idea explores alcoholic fermentation at work by making your own soda.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Challenge your learner to design and build a city of their own in this creative engineering activity.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Do different types of oil mix or stack? Find out in this science fair project idea!

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

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 investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.