Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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

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

This science fair project idea produces sounds by creating vibrations using different objects.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

Find out which kind of bubble wrap fares best when put in impact.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This project examines whether people's taste perception is influenced by what they see.

This science fair project teaches students about wilting and browning of salad greens.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

In this science fair project you will make a model of a cell membrane using very simple material.

In this activity your child will create their very own marble maze!

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

Science fair project that examines condensation and the conditions needed in order for dew to form.