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This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

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

In this science fair project, students create their own miniature salt flats at home.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This science fair project idea determines the most effective method of preserving food.

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.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.