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Showing Results for heavier or lighter than : Page 6

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

When Seeds Explode

This science fair project investigates why the number of visible stars changes from place to place.

Stars In The Sky

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Lactose and Lactase: Exploring Enzymes as Catalysts

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Nice Shades! How Light and Color Affect Sight

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Flat Earth? Not Really!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Cricket Behavior

This science fair project idea determines the most effective method of preserving food.

Preserving Foods

Windmills have been around for generations to grind food and create energy. During this challenge, students will use various materials and put their engineering skills to work by creating their own windmills.

Wacky Windmill Challenge

Get your students to be builders and create structures with a variety of materials. Students will have the opportunity to be creative, cooperate in groups, and discuss their experience.


Structure Building Challenge

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

How to Tell Time by the Sun

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Ocean Food Web

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

How Does Sound Travel?

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Making Fake Snot!

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Sweet Tooth

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Soil Electrical Conductivity: Earthy Energy

Collect meteorite dust with a magnet in your very own backyard!  The objective of this science fair project is to gather meteorite dust to study outer space.

Outer Space In My Yard

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Testing Water Hardness

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Ping Pong Ball Anemometer

Young scientists will investigate people&#39;s preferences for saltiness, and make some inferences about genetics and diet.

Too Much Sodium?

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Whatever Floats Your Boat

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

Upside-Down Plants

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Geography, Latitude, and the North Star: Where Am I?

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling
into the moat.

Sand Bridge

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Speaking Cat

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Naked Egg

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Soil Amendments and Growing Beans

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Water Transport in Plants

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Use the Altitude of Polaris to Find Latitude

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Fastest Way to Cool a Soda

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Popcorn Pumice: Exploring Different Rock Densities

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