Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

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

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

How powerful is the reaction between baking soda and vinegar? Find out here!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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

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!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

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

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Discover how and which salt melts ice the quickest.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

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.

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.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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 science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.