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?

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

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

In this fun experiment, we'll find out how color affects heat absorption!

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

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Help your kindergarten science maven explore the water cycle without getting everything wet.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Test whether plants can grow without sunlight and water.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea explores how length affects the weight a bridge can hold.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!