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American Museum of Natural History
What Do You Know About Horses?
A 10-question online quiz tests scholars' knowledge about horses: all answers come with an informative explanation.
Curated OER
Sports in Physics: Measuring Velocity in a Mini-Olympics
Eighth graders examine the difference between speed, velocity and acceleration. In this velocity lesson students read and construct a line graph and a bar graph to show information about velocities of sports activities.