In your table of contents

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In your table of contents

• Add Earth and Moon Notes

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Earth

• Earth is the water planet, which is the reason
  for the survival of life on this planet.
• Temperatures on Earth are warm enough to keep the
  water from freezing but cool enough to keep it
  from boiling away.

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The Earths Interior Three Layers

1. The crust is the outer layer of the Earth.
2. The mantle lies below the crust. It contains
   denser rocks.
3. The core, at the center, contains the heaviest
   material (nickel and iron).

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The Earth from Space

• NASA has a program to study Earth using
  satellites.
• The goal of this project, called the Earth
  Science Enterprise, is to study the Earth as a
  system and to determine the effects humans have
  in changing the global environment.
• Studying Earth will help us better understand how
  weather, climate, and pollution interact.

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The third orbital path from the sun.
Earths Orbit
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Earth Statistics

• Distance from sun
• Period of rotation
• Period of revolution
• Diameter
• Surface temperature
• Surface gravity

• 8.3 light-minutes
• 23 hours, 56 minutes (24)
• 365 days, 6 hours
• 12,756 km
• -13C to 37C
• 100 of Earths

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BellWork

• How is Earth different from all other planets?
• Name some characteristics and facts about our
  moon.

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Luna The Moon of Earth

• Satellites are natural or artificial bodies that
  revolve around larger bodies like planets.
• Except for Mercury and Venus, all of the planets
  have natural satellites called moons.
• The moons orbit is tilted.

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The Surface of the Moon

• Lunas density is much less than Earths.
• According to lunar rock samples brought back by
  Apollo astronauts, the composition of the moon is
  similar to that of the Earths mantle.
• Numerous craters are on the moons surface.
• The large dark areas on the moon are lava plains
  called maria.

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Moon Statistics

• Period of rotation
• Period of revolution
• Diameter
• Surface temperature
• Surface gravity

• 27 days, 8 hours
• 27 days, 8 hours
• 3,476 km
• -170 to 134C
• 17 of Earths

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Bell work 1/10/11

• What is Earths nickname?
• What are the three layers of Earths interior?
• What is special about Lunas orbit?
• What are the four inner planets, starting at the
  sun?

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Eclipses

• An eclipse occurs when the shadow of one
  celestial body falls on another.
• A lunar eclipse happens when the Earth comes
  between the sun and the moon
• A solar eclipse happens when the moon comes
  between the Earth and the sun, and the shadow of
  the moon falls on part of Earth.

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Solar Eclipses

• The moon in the sky appears to be nearly the same
  size as the sun.
• So during a solar eclipse, the disk of the moon
  almost always covers the disk of the sun.

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Solar Eclipse

• This is an image of the suns corona during the
  February 26, 1998 eclipse in the Caribbean.
• The solar corona is visible only when the entire
  disk of the sun is blocked by the moon.

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Lunar Eclipses

• Earths atmosphere acts like a lens and bends
  some of the sunlight into the Earths shadow, and
  the interaction of the sunlight with the
  molecules in the atmosphere filters out the blue
  light.
• With the blue part of the light removed, most of
  the remaining light that illuminates the moon is
  red.