Fun Science Projects & Experiments - Force
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A collection of science projects, videos and experiments for various grades and topics.
Science Projects or Science Experiments: Grades 4 & 5
Force and Energy
Eureka! Episode 6 - Gravity
Isaac Newton's celebrated falling apple is cited to explain the force of gravity and the unit with which the force of gravity is measured. Concept: Force of gravity = mass x 10m/s2
Eureka! explains the difference between weight and mass, and shows how only mass is the same on the moon and on the earth.
A circus strongman and a clown help present the physics definition of work. Concept: Work = force x distance.
Animated billiard balls help demonstrate kinetic energy - the energy of motion.
A rock teetering on the edge of a cliff is shown to have potential energy - the energy of position.
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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