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Learn whether writing things down really makes things easier to remember.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Examine the effect of pressure on carbonation in soda.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

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

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

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?

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

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

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

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

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!

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.