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The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This project explores ways to prevent static electrical shocks.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

Can cells be frozen? This science fair project provides information to answer this question.

Have your child kick off their summer vacation by making a miniature water slide!

Explore the belief in astrology as a predictive system.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

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

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

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

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.