This science experiment tests whether warm or cold water works best in making cut flowers last longer.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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

Construct and experiment with a periscope using reflected light rays to gather an image.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

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

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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

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

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

In this experiment we will be determining whether birds prefer certain colors of seed.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

This science fair project idea explores whether white light can be separated into different colors.

This science fair project idea explores the egg's thin membrane.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

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

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.