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Science Fair Projects

5th grade
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Reynolds Number: Laminar and Turbulent Flow

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

Endothermic and Exothermic Reactions Experiment

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

A Denser Coke

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Reaction Time

This science fair project idea investigates the difference in reaction times between boys and girls.

How Well Does Sound Travel Through a Gas? A Liquid? A Solid?

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Defying Gravity

This science fair project idea investigates how magnetism can defy the force of gravity.

Principles of Air Pressure

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

In the Air and All Around

Learn how to investigate local air quality with this cool science fair project for grades 3 to 5.

Does Adding Salt to Pasta make it Cook Faster?

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

Iron Or What?

In this project, a magnet is used to collect iron from breakfast cereals.

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