Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

In this project, you will observe and record changes in sunspots over two weeks.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

This science fair project investigates why the number of visible stars changes from place to place.

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

In this science fair project, high school students will try to determine the mathematical patterns in JS Bach's two movement preludes and fugues.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

In this fun activity, frozen cubes of paint provide your preschooler with a cool new way to paint a masterpiece.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

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!

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.