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This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

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

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Examine the effect of pressure on carbonation in soda.

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

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Discover whether a metal will expand under hot water.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea experiments with spinning color wheels and optical illusions.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project that examines condensation and the conditions needed in order for dew to form.