Download Stepping stones to science: true tales and awesome by Kendall Haven PDF

By Kendall Haven

Deliver technology to lifestyles with those thirteen action-packed tales approximately well-known scientists. scholars will examine uncomplicated talents and strategies of technological know-how whereas studying approximately such humans as Shirley Jackson, Charles Goodyear, and James Wright. The traditionally actual bills conceal various elements of actual, organic, and earth sciences. Stepping Stones to technological know-how has been used as a steered textual content at Clarion collage of Pennsylvania.

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What have you learned? First, that you can overpower gravity. You do it all the time. From Stepping Stones to Science. © 1997 Kendall Haven. Teacher Ideas Press. (800) 237-6124. Page 11 Second, that you only overpower gravity as long as you exert some upward push or thrust. As soon as you let go of a ball, it is no longer being pushed up, and it slows. As soon as your feet leave the floor, your legs are no longer pushing you up, and you slow. However, gravity pulls you down no matter where you areon the ground or in the air.

Rotate your left hand forward and your right hand backward. The eraser airplane remains stationary while both wings warp, one curving up and one curving down. " 9. Research: Research is a careful, thoughtful, studious search for fact or truth. Research is what scientists do. Experiments are one way to do research. Research may also be done by reading and comparing various reports and books in the library, or by questioning people with knowledge of a subject. 10. Discovery: A discovery is the act of making known something that was not previously known.

All you'll need is one softball per group of students. Start with each softball on the ground in front of the student doing the exercise. Reach down and lift the ball chest high. Have you just overpowered gravity? Yes. You applied a greater upward force than gravity exerts downward on the ball. Because the force you applied was greater, the ball rose. 3. Patterns of Motion. Throw the ball as close to straight up as you can. Have each group try to describe the ball's pattern of motion. How did it move?

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