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

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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.

Determine if gender affects the ability to identify different smells.

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.

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

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

This science fair project idea investigates if fats add to the flavor of food.

Take a dive into the candy jar with this yummy science experiment.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

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 easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.