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Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

Test your skills as a weather forecaster, and learn some science terms on the way!

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

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

In this science fair project, students evaluate the alleged pain-relieving properties of amber.

Start your toy engines -- this is going to be a fast and friction-filled race!

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

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

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

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

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

This science fair project idea tests the efficiency of short term memory.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

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

In this fun activity, kids practice measurement and boost fine motor skills as they learn all about how fossils form and even make a few of their own!

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this project children practice the scientific method while playing with puffy paint.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.