WARM UP #3WARM UP #3In what ways do the In what ways do the

planets differ from each planets differ from each other ?other ?

(Name at least 5)(Name at least 5)

Answer to # 3Answer to # 3

The planets differ in • temperature • mass • amount of gravitational pull• atmosphere • rings• length of day and year • distance from sun, chemical composition • life forms or not

WARM-UP # 4WARM-UP # 4

• Name the 2 movements that the Earth makes and describe each.

WARM-UP # 4WARM-UP # 4

• Rotation (rotates): occurs when the Earth moves on its axis. This takes 24 hours or 1 day.

• Revolution (revolves): occurs when the Earth travels around the sun. This takes 365 ¼ days or 1 year.

WARM-UP # 5WARM-UP # 5

• When it is summer in New Jersey, what season is it in Australia? Explain your answer.

Answer # 5Answer # 5

• It is winter in Australia. When the northern hemisphere (NJ) is tilted toward the sun, the southern hemisphere (Australia) is tilted away from the sun. The Earth’s tilt on its axis causes the seasons.

WARM-UP # 6WARM-UP # 6

• Draw the Earth and label it with tropical, temperate, and polar zones.

Tropical zone

Temperate zone

Temperate zone

Polar zone

Polar zone

WARM-UP # 7WARM-UP # 7

• What determines the phases of the moon?

Answer to Question # 7Answer to Question # 7

• The relative positions of the Sun, Earth, and Moon determine the phases of the moon.