COT Science 5 Q4 Wk7.pptx

COT Science 5 Q4 Wk7.pptx

• 1.
  PHASES OF THE MOON SCIENCE5 QUARTER 4 – WEEK 7
• 2.
  Objectives •Observe the moon’sappearance as well as the changes in its appearance. •Describe the phases of the moon.
• 3.
  Phases of theMoon The moon is the only natural satellite that the Earth has. A satellite is an object that revolves around a larger object. A moon does not produce its own light. It only reflects the light coming from the sun. Since the moon is revolving around the earth, the amount of light it reflects from the sun varies as it changes its position.
• 4.
  The moon’s appearancechanges from time to time. It’s because the illuminated portion of the moon changes as it move around the earth. This apparent change in the appearance of the moon is known as phases of the moon.
• 5.
  MOON MODEL • YouWill Need: • Globe • Flashlight • Small ball • What to Do: • Place the globe at the center of the table.
• 6.
  • Turn offthe lights in the room. Make sure that the room is dark enough so as to enhance the light coming from the flashlight. • Turn on the flashlight. Be sure to focus its light on the globe. • Hold the small ball in between the globe and the flashlight. • Turn the ball slowly around the globe. DO NOT MOVE THE FLASHLIGHT. • Observe what portion of the ball reflects light. Does the ball change its shape?
• 7.
  • Questions: • Observewhat portion of the ball reflects the light. Does it change its shape? Please explain. • On a piece of paper, draw the lighted portion of the ball in the different positions. • Compare your drawing with your classmates.
• 8.
  Phases of theMoon The moon has eight phases. 1. When the moon is between the sun and the Earth you cannot see the moon it is called new moon. During this phase, the moon is not visible from the earth. This is because the side of the moon that is facing us is not being lit by the sun.
• 9.
  2. About aweek after the new moon, you see half of the lighted side of the moon. This is called the first quarter moon. 3. A week after the first quarter moon, you can see the whole lighted side of the moon. This is called the full moon. A full moon appears as an entire circle in the sky.
• 10.
  4. On thethird week of the month, you again see half of the moon’s lighted part. This is called last quarter moon. Soon the moon disappears again; another moon appears.  When the moon is in between the appearance of the quarter moon and new moon, the moon is called crescent. Crescent moon is less than half-lit.
• 11.
   When themoon is in between quarter moon and full moon, the moon is called gibbous. Gibbous moon is more than half-lit.  The moon goes through these eight phases in 29½ days. The period it takes the moon to complete its phases is called month.
• 12.
  Waxing Phases ofthe Moon After a new moon, when the moon seems to be growing, it is undergoing a waxing phase. As the moon starts to appear in a semi-circular form, waxing crescent starts to appear. When most of the portion of the moon is visible in the sky, it is known as waxing gibbous. Then the whole lighted side of the moon is visible from Earth is known as full moon.
• 13.
  Waning Phases ofthe Moon After full moon, waning phase of the moon starts. It is when the moon appears to be getting smaller each night. Waning gibbous appears after a full moon. Most of the portion of the moon is visible in the sky but this time, it gets smaller each night. Then, the last quarter will be seen followed by a waning crescent.
• 15.
  Match the wordsin Column A with their meanings in Column B. Column A Column B _____1. The phase seen when the moon is between a. month the Sun and Earth. _____2. The phase when most of the lighted portion b. waxing crescent of the moon is visible in the sky and seen before a full moon. c. waning gibbous _____3. The phase when the entire lighted portion of the moon is seen in the sky. d. new moon _____4. The phase when the moon appears in a semi-circular form and is seen after a new moon. e. full moon _____5. The phase that appears after a waning crescent. _____6. The phase when most of the lightest portion of f. phases of the moon the moon is seen in the sky, but gets smaller every night. g. moon _____7. Earth’s only natural satellite _____8. The period it takes for the moon to complete h. last quarter one cycle i. waxing gibbous
• 16.
  Assignment: On your notebook,draw the eight phases of the moon. Label each correctly and add a short description
• 17.
  Thank you forwatching! God Bless us all!