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Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This project determines what category of person is most likely to be ticklish.

This project examines what types of objects burn and which burn faster and cleaner.

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

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

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

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

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

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Discover which fabrics shrink the most in the wash and why.

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

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

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science experiment tests if dog saliva can really help heal wounds.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Learn whether writing things down really makes things easier to remember.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

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