Monday, May 2, 2016

Year 7 - Science - 2-5-16

Our universe
Answer the following questions
   1.     What force controls the planets to move around the sun?

   2.    Where is the Belt of asteroids in solar system?

   3.    What is an Orbit?

   4.    What is the Difference between Natural and Artificial Satellite?

   5.    What is a galaxy? To which galaxy our solar system belongs?

   6.    What is the degree of tilt of the earth’s axis?

  1. What does it mean when someone says the moon is “waxing” or “waning”? 
  2. A solar eclipse occurs when a new moon comes between the sun and the Earth.  Draw and label a diagram to show the positions of the sun, moon, and Earth during a solar eclipse.
  3. A lunar eclipse occurs when the Earth comes between the sun and a full moon.  Draw and label a diagram to show the positions of the sun, moon, and Earth during a lunar eclipse.
  4. Why do all the stars in the sky seem to move around Polaris?
11.  What is the coldest planet in the solar system?


12.    What is the closest star to Earth?

13.    Which planets are made of gas?

14.    What planet is about the same size as Earth?

15.    The sun is a lot bigger than the Moon but it appears to be the same size. Why is that so?







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