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Do different types of oil mix or stack? Find out in this science fair project idea!

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

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

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 which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This science fair project idea compares biodiversity between drops of water.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

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

This science fair project idea examines the reason boats are shaped and engineered.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

This science fair project idea explores which fruit molds the fastest.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This science fair project idea explores whether talking to a plant will help it grow.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.