Access Prior Knowledge Lesson 4: What is know about the Moon?

1. Access Prior Knowledge Lesson 4: What is know about the Moon? Opening Activity Open Science textbook to page 556. Open Science workbook to page 172A to review homelearning. Open Science folder to review vocabulary words and outline for the chapter. Open Science journal and answer the following question: 1. How are comets and asteroids different? Review Content Cards and Q-Cards in bin, sharing with partners quizzing each other 
quietly. Log in to clickers using student ID number. Be ready to review home learning when timer goes off. Don't forget to write your 
home learning in your 
agenda page 173A.

2. Do you agree with the statement? 1 The Moon is a quarter of Earth’s size. Yes No

3. Do you agree with the statement? 2 The Moon’s surface is smooth and flat. Yes No

4. Do you agree with the statement? 3 The phases of the Moon are caused by the positions of the Moon and Earth. Yes No

5. Do you agree with the statement? 4 The Sun is the main cause of rising and falling tides. Yes No

6. Traveling with Earth The Moon is smaller than Earth (1/4 Earth’s size) and has no 
atmosphere, air or water. We consider the moon is a satellite because a satelliteis any 
object that orbits another object. The Moon is Earth’s only natural satellite. Earth’s other 
satellites are man-made. First paragraph pg. 556

7. The Moon's Surface The surface of the Moon is rocky with craters, valleys, mountains, and 
plains. Rocks or comets that hit the Moon made these craters and last millions 
of years because there is no air or water to wear them away like Earth’s 
craters.

8. Looking at the Moon The “near side” always faces Earth because the Moon’s spin and orbit 
happen at the same speed. It takes about 29 days for the Moon to revolve around Earth and it also takes 
29 days for the Moon to spin once on its axis. In 1969, U.S. astronaut Neil Armstrong was the first human to walk on the 
Moon and see the “far side”; so far 12 people have walked on the Moon. First paragraph pg. 557

9. Phases of the Moon New Moon The Moon does not make its own light, it reflects the Sun’s light. Moon phasesare the shapes of the lit side of the Moon we can 
see. The phases of the Moon are predictable as they repeat about every 
29 days, due to the position of Earth, the Moon, and the Sun.  -New Moon: The Moon is passing between Earth and the Sun. 
 Its sunlit side is facing away from Earth.  -Crescent Moon: A small piece of the Moon’s sunlit side faces 
 Earth.  -First Quarter: Half of the Moon’s sunlit side faces Earth. This 
 happens about a week after the New Moon.  -Full Moon: Earth is between the Moon and the Sun. The 
 Moon’s entire lighted side faces Earth. This happens about two 
 weeks after the New Moon. Crescent Moon First Quarter Moon Full Moon First paragraph pg. 558

10. High and Low Tide Most places on Earth have two high 
tides and two low tides each day caused 
by the Moon’s gravity. Earth’s land, water, and air are pulled 
toward the Moon by gravity making the 
ocean rise and fall. Along the coast, the shape of the land 
affects the tides. Second paragraph pg. 560

11. High and Low Tide In many places, high tide is about two meters (six feet) higher than low tide 
and in some places, the difference is much greater.  -Tidal differences are much less during neap tides because the Sun pulls 
 on Earth at a greatly different angle from the Moon. The Sun’s gravity also affects tides slightly; however, the Sun is very far 
away. Tides also change with the Moon’s phases, so tides are highest during a full 
Moon or a new Moon.  -At these times, the Sun, Earth, and the Moon line up. The gravity of both 
 the Moon and the Sun pull in the same direction. Tides Moons

13. Know Your Phases New Moon Crescent Moon First Quarter Moon Full Moon

14. TextQuest 1. During what phase of the moon does 
the moon pass between the earth and 
Sun? 2. What happens during neap tides? 3. Which moon phase appears when 
the earth is between the moon and 
Sun? 4. About how many days is the moon 
phase cycle? Don't forget to write your 
home learning in your 
agenda page 173A.