Topic: Review of the Moon Bell RInger Describe what an equinox is. How many times a year do we experience an equinox? Objective SWBAT: Describe the features, formation, and characteristics of the moon on a foldable.

Instructions Create a foldable with 3 columns Label the columns 1. The Moon’s Surface 2. Characteristics of the Moon 3. The Origin of the Moon

The Moon’s Surface Maria- Dark, flat surfaces on the moon Latin word for “seas” Hardened rock from lava flow that occurred 3-4 billion years ago Craters- Large, round pits on the moon’s surface Some craters are hundreds kilometers acroos Caused by the impact of meteors ( chunks of rock or dust from space)

The Moon’s Surface Cont. Highlands- Light colored features on the surface of the moon known as highlands or mountains

Characteristics of the Moon Size and Density 3,476 kilometers in diameter ( a little less than the distance across the United States) The moon only has 1/80 th the mass of Earth Temperature and Atmosphere Temperature on the moon’s surface ranges from -180 degrees Celcius to 130 degrees Celcius The moon has no atmosphere because of weak gravity that allows gases to escape

Characteristics of the Moon Cont. Water There is no liquid water on the moon’s surface There is evidence of large patches of ice near the poles on the moon

Origin of the Moon Collision-ring theory When Earth was very young, the solar system was full of rocky debris (some the size of planets) Scientists theorize that a planet-sized object collided with Earth to form the moon Material from the object and Earth’s outer layers was ejected into orbit around Earth where it formed a ring. Gravity caused this material to combine to form the moon

Assignment Complete Section 2 Assessment pg 17 (1-3) Yes, you must write the question.

Homework You have a quiz tomorrow! Study all bolded words from section 1 and 2