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Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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 examines how seeds hitchhike on animals and clothing.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

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

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea investigates the difference in reaction times between boys and girls.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

In this science fair project, students make their own rain gauge to measure rainfall.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

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

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.