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

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

In this science fair project you will make a model of a cell membrane using very simple material.

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.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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 windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

This science fair project idea identifies trees using a dichotomous key.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

In this fun experiment, we'll find out how color affects heat absorption!

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Demonstrate how to tell the age of an egg without having to crack it open.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

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