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This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

In this activity, your child will be challenged to make a tower using paper cups.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.