Sect 9.3
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6 th Grade Science Chapter 9 Sun- Earth- Moon System Notes Section 9.3
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Transcript of Sect 9.3
6th Grade Science
Chapter 9 Sun-Earth-
Moon System
Notes Section 9.3
• What were the first lunar surveys?• The first lunar surveys were the Luna (Russians)
and the Ranger and Lunar Orbiters (USA). • What was the Lunar Orbiter Clementine’s
mission?• The Lunar Orbiter Clementine mapped the lunar
surface and collected data on rocks.
Key Questions 1
The Tadpole Galaxy
Russian Luna 16
Luna 16 Moon samples return capsule after touchdown
The Ranger project of the 1960s was the first U.S. effort to launch probes directly toward the Moon. The spacecraft were designed to relay pictures and other data as they approached the Moon and finally crash-landed into its surface.
Clementine Moon satellite
• What information did Clementine collect?• Clementine found that the lunar crust is thinner on
the near side of the moon than the far side. • What was the Lunar Prospector’s mission?• The Lunar Prospector found that the Moon has a
small iron rich core and ice water in craters at the lunar poles.
Key Questions 2
The Sombrero Galaxy
•Based on analysis of the light data received from Clementine, a global map of the Moon also was created that shows its composition.
Lunar Prospector
• Later estimates concluded that as much as 3 billion metric tons of water ice was present at the poles.
• Lunar Prospector confirmed the findings of Clementine that water ice was present in deep craters at both lunar poles.
LunarProspector
1. Name the first U.S. spacecraft to successfully land on the Moon. What was the major purpose of this program?
2. Explain why scientists continue to study the Moon long after the Apollo program ended and list some of the types of data that have been collected.
3. Explain how water ice might be preserved in portions of deep impact craters?
4. Describe how the detection of a small iron-rich core supports the theory that the Moon was formed from a collision between Earth and a Mars-sized object?
5. Why might the discovery of ice in impact basins at the Moon’s poles be important to future space flights?
Questions Section 9.3
