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The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

This science fair project idea compares biodiversity between drops of water.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

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

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

Using a toy race car kids create a visual model of the Doppler Effect.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

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

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Start your toy engines -- this is going to be a fast and friction-filled race!