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Gravity Teacher Resources
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Fifth graders record at least four hypotheses concerning what happens when they drop an egg from a high spot. They record at least five observations or supporting ideas about the egg drop. Students test gravity by dropping an egg from a ladder and record their results with 100% accuracy. They complete the experiment and create a KWL chart and write an entry in their journal.
Students work with boxes and weights to find the center of gravity. In this simple center of gravity experiment, students find success in using weights to move the center of gravity. Students will be assessed at the end of the lesson as to how the center of gravity changes.
Eighth graders participate in several game like activities. The first, Planetary Orbit Race," involves two students holding a 12 meter rope. One member remains in their spot while the other races around in a circle. The rope represents gravity, the runner is a planet. The second activity, "Comet Time Trials," simulates a comets' orbit about the sun, and the third, "Weightless Ball," they simulate anti-gravity by keeping a beach ball aloft.
Students view a video to introduce forces and how they work. For this video force lesson, students experiment to find the force of gravity. Students record and draw conclusions about gravity based on their experiment. Students self evaluate by completing the lesson outline.
Can you feel the weight of the world? After viewing this PowerPoint, your physics class will. They learn that because of the gravitational pull of the sun, Earth does not go flying off into space. They also learn how to use the universal law of gravitation to calculate Earth's mass and the inverse-square law to relate intensity and distance. This is a descriptive demonstration of these physics concepts for your high schoolers.
Students measure motion. For this gravity and motion lesson, students make a simple pendulum and use the TI-73 calculator to calculate how acceleration varies with pendulum length. Students record data from their experiments on the provided chart and step by step instructions on using the TI-73 are included.
Students examine the principles of orbit using water balloons and a piece of string to see how gravity and the velocity of a spacecraft balance to form an orbit. They determine how an object can escape the gravity of the sun or planet. They look at how engineers design huge rockets so that they can get out of the Earth's gravity.
When you lecture on the center of mass and center of gravity, show this presentation as a note-taking guide for your physical science class. Pause at the fifth slide to let them find the center of mass for their pencils. Also ask them what adjustments they find themselves making to remain stable when they change their own center of gravity as shown on the tenth slide. This compact collection of slides really packs a practical punch!
Young scientists will enjoy this delightful video that illustrates the role gravity plays in our solar system. Lyrics set to a snappy tune explain that the force of gravity is what holds us to the earth and keeps planets orbiting around the sun. The song also includes information about the Big Bang, black holes, galaxies, and all the planets. The video presents attention-grabbing visual representations that correspond to the lyrics, making it an excellent supplement to your lessons about the solar system.