Fun Science Projects & Experiments
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More Science Projects and Experiments
Math Worksheets
Science projects, videos and experiments for various grades and topics.
Science Projects or Science Experiments: Grades 4 & 5
Eureka! Episode 11 - The Inclined Plane
This program demonstrates how an inclined plane allows you to trade increased distance for decreased force
Eureka! Episode 12 - The Lever
Eureka! demonstrates the principle of the lever: "The longer the arm of the lever to which force is applied, the less that force need be."
Eureka! Episode 13 - Mechanical Advantage and Friction
Professors A and B compare the mechanical advantage of an inclined plane with that of a lever.
Eureka! Episode 14 - The Screw and The Wheel
This program provides examples and definitions of a screw and a wheel; a screw is simply a twisted inclined plane; a wheel is simply a circular lever, whose fulcrum has become an axle. Eureka! Episode 15 - The Pulley
Eureka! shows viewers how a pulley works to lift a heavy object. If you double the number of ropes supporting the weight, you double the mechanical advantage.
More Science Projects and Experiments
Math Worksheets
Science projects, videos and experiments for various grades and topics.
Science Projects or Science Experiments: Grades 4 & 5
Simple Machines: Inclined Plane, Lever, Mechanical Advantage and Friction, Screw, Wheel, and Pulley.
Eureka! Episode 11 - The Inclined Plane
This program demonstrates how an inclined plane allows you to trade increased distance for decreased force
Eureka! demonstrates the principle of the lever: "The longer the arm of the lever to which force is applied, the less that force need be."
Professors A and B compare the mechanical advantage of an inclined plane with that of a lever.
This program provides examples and definitions of a screw and a wheel; a screw is simply a twisted inclined plane; a wheel is simply a circular lever, whose fulcrum has become an axle. Eureka! Episode 15 - The Pulley
Eureka! shows viewers how a pulley works to lift a heavy object. If you double the number of ropes supporting the weight, you double the mechanical advantage.
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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