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

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.

The goal of this project is to create an exciting topographical map out of dough.

Find out whether putting something on top of a plant will inhibit its growth.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

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.

This science fair project idea investigates whether plants can survive being frozen.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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

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

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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

Test whether plants can grow without sunlight and water.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This science experiment has students test whether a snail moves faster on concrete or dirt.

This science fair project idea explores how length affects the weight a bridge can hold.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

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.

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

This science project teaches students to classify different shapes of leaves.