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.

Test the idea that people who wear glasses tend to be more educated. True or false?

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

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.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.

This project examines whether more expensive golf balls translate into better results on the golf course.

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

Have your kid build an ice sculpture in this activity that's so fast, fun, and messy it's the perfect way to demonstrate how much fun experiments can be!

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

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

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

In this experiment we will be determining whether birds prefer certain colors of seed.

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

Help your child plant a "tea garden": a garden made of herbs for making teas.

Kids will make a homemade electroscope and explain how it detects static charges through induction in this fun science fair project idea.

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This experiment explores whether music affects the growth of bacteria and could help figure out better ways to process sewage and other microbe-assisted duties.

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

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project that examines the biodiversity of ant populations in various locations.