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In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

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.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea explores the different properties of matter.

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

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

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.

This science fair project idea identifies trees using a dichotomous key.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Use pepper and soap to discover some fun facts about the properties of water.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

Discover how and which salt melts ice the quickest.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.