7 l1 the earth in space

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  • 1. 12 May 2011
    7L.1 The Earth in space (HSW)
    Copy the diagram using a pencil and a pair of compasses. Now label the three spheres with either the Sun, the Moon or the Earth.
    Now use the diagram to explain what a day, month and year is.
  • 2. 12 May 2011
    7L.1 The Earth in space (HSW)
    The Moon
    Day: the time it takes for the Earth to spin on its axis
    Month: the time it takes for the Moon to orbit the Earth
    Year: the time it takes for the Earth to orbit once around the Sun
    The Earth
    The Sun
  • 3. Time lapse of the Earth from space
  • 4. Day and night on Mars
  • 5. Stand up and gather round
  • 6.
  • 7.
  • 8. Earth
    heat
    light
    satellite
    orbits
    28
    2
    5
    4
    3
    1
    365.25
    4
    Sun
    365
    1 year
    24 hours
  • 9. Powers of ten
  • 10. Homework
    Read chapter 7L
    Begin preparing for the end of year test
    Complete worksheet 7La/1
  • 11. Learning Objectives
    State how long a day, a month and a year is
    Describe the motion of the Sun across the sky
    Describe how the Earth moves around the sun
    Explain why we get day and night, and years and leap years
    Make predictions about time of day