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

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

This science fair project idea produces sounds by creating vibrations using different objects.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This science fair project examines discover whether different formations of deodorant works better for certain skin types.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This experiment will explore whether adding different substances to a gel affects its strength.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

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

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.