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Do you think heat can affect a plant's growth rate?

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This science fair project explores how osmotic pressure forces water through the root up into the plant.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Examine the effect of pressure on carbonation in soda.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

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

This science fair project idea determines if the color of light affects the growth of plants.

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

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

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.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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.

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This science fair project teaches students about wilting and browning of salad greens.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

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

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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.

This science fair project idea explores the different properties & interactions of sugar molecules.