- Which of the following best describes Earth’s shape?
A. disk
B. circle
C. sphere
D. plane - Earth’s gravity pulls an object toward its ____________________.
- Which model do you find most useful to explain gravity and its effects? Why?
- Tennis ball and rubber band?
- Styrofoam ball and toothpicks?
- Circle on paper with arrows? - Why are models helpful at explaining complex scientific concepts like gravity?
- Do you think the moon is affected by Earth’s gravity? If so, why doesn’t it fall “down” toward the Earth?
- Why doesn’t a plane or bird fall from the sky?
- Does gravity ever stop working? Do any forces ever cancel out gravity or reverse it? Explain.
- Why is this lesson on gravity a good time to teach about craters
- C. Sphere.
- Core.
- Tennis Ball and Rubber band, because when you pull the rubber band away from the tennis ball the rubber band is being pulled back to the tennis ball.
- because it gives people a visual of what you are trying to say.
- it doesn't fall down towards the earths it orbits the earth and is slowly being pulled to the earths core.
- because it creates a retracting force away from the pull of gravity.
- No because gravity is a force that pulls object in to another larger object in space, it will never run out because its a renewable source.
- because craters are caused by gravity pulling large rocks from space toward the earth.