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ES1A: How do the relative positions of Moon, Sun, and Earth cause the phases of the Moon and Eclipses?

  • Name the 8 phases of the moon in order, starting from any point in the cycle.
  • Draw what relative positions of the Sun, Moon, and Earth would cause each phase.
  • If a Lunar Eclipse is happening, what phase must the Moon be in? Why?
  • If a Solar Eclipse is happening, what phase must the Moon be in? Why?
  • Using only words, explain what causes the Phases of the Moon.

 

ES1B: What is the order of the planets in the Solar system? What other kinds of objects are in the Solar system?

  • Name the planets of our Solar System in order:
  • How do the relative sizes of the outer planets (from Jupiter out) and the inner planets (from Mars in) contrast?
  • The object that the planets all orbit around is the:
  • Draw a diagram that roughly shows the relative distances of the 8 planets from the Sun.
  • How many stars are there in our Solar System?

 

ES1C: How do the relative positions and motion of the Earth and Sun cause day and night and the seasons through a year?  (Check out the first page on the link and go to the next.)

  • Explain with words only why we have day and night here on Earth.
  • Draw a diagram that shows why we have day and night here on Earth.
  • Draw a diagram that shows the relative positions of the Sun, Earth, and Moon during a Lunar Eclipse.
  • Draw a diagram that shows the relative positions of the Sun, Earth, and Moon during a Solar Eclipse.
  • Why don’t Eclipses happen every time there is a Full or New Moon?

 

 

ES1D: What is gravity? What effects does it have on the motion of the objects in our Solar system?

  • What is the relationship between the masses of two objects and the force of gravity between them?
  • What is the relationship between the distance between two objects and the force of gravity between them?
  • An object in orbit around another object is falling toward it. It just keeps moving forward at the right speed so that it falls around it, rather than into it. But what would happen to the orbiting object if gravity suddenly disappeared? What would happen if gravity increased or decreased?

 

ES1E: What kinds of objects make up our galaxy and the universe? How many stars are in the galaxy? How many galaxies in the universe?

  • What could be described as “made up of” galaxies?
  • What could be described as “made up of” stars?
  • What could be described as “made up of” planets?
  • About how many stars are in a galaxy?
  • About how many galaxies are in the Universe?
  • How far apart are stars from each other compared to how far planets are from their star?

 

Remember, the answers to all of these questions can be found in the Astronomy Study Guide if you scroll down. The Study Guide is in the Science 8 Document Library.