Warm Up 1.3.2 1.Define the following in your notebook: 2.Astronomy 3.Axis 4.Rotation 5.Equinox 6.Revolution 7.Solstice 8.What word has an “o” in it that.

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Presentation transcript:

Warm Up Define the following in your notebook: 2.Astronomy 3.Axis 4.Rotation 5.Equinox 6.Revolution 7.Solstice 8.What word has an “o” in it that sounds like an “i”?

Rotation and Revolution I.Rotation A. Looks like spinning B. Motion around an axis 1. axis is imaginary line through center 2. like a wheel on an axle

II. Revolution A. Looks like the 7 th grade hallway B. Motion around another object 1. the path is called an orbit 2. most orbits are not perfect circles 3. they are elliptical

Seasons I.2 reasons for the seasons on earth A. The tilt of the axis B. The revolution of the planet II.4 important periods of time A. Vernal Equinox B. Autumnal Equinox C. Summer Solstice D. Winter Solstice