Friction

Students investigate the force of friction. They observe that lubricants and rolling objects decrease the amount of friction between surfaces and use bar graphs to display their data. They also investigate the effect of friction on falling objects and determine that air resistance depends on the shape of an object.

Student Resources

Learn by Reading

For additional content-area reading, check out the Houghton Mifflin Science eBook: Grade 2, Unit F, page 16.