HOW DO WE OBSERVE OBJECTS IN SPACE? OBSERVATIONS OF OBJECTS IN SPACE.

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HOW DO WE OBSERVE OBJECTS IN SPACE? OBSERVATIONS OF OBJECTS IN SPACE

Transcript of HOW DO WE OBSERVE OBJECTS IN SPACE? OBSERVATIONS OF OBJECTS IN SPACE.

Page 1: HOW DO WE OBSERVE OBJECTS IN SPACE? OBSERVATIONS OF OBJECTS IN SPACE.

H O W D O W E O BS E RV E O B J E C T S I N S PAC E ?

OBSERVATIONS OF OBJECTS IN SPACE

Page 2: HOW DO WE OBSERVE OBJECTS IN SPACE? OBSERVATIONS OF OBJECTS IN SPACE.

HOW DO WE OBSERVE OBJECTS IN SPACE?

• Until January 7, 1610, people observed the night sky using only their eyes.• Galileo Galilei looked at the sky using a telescope.• A telescope is an instrument that makes distant

objects seem larger and nearer.

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WHAT ARE PLANETS?

• A solar system is a star and the objects that orbit around it. In our solar system, there are eight planets orbiting the Sun. A planet is a large object that orbits the Sun.

• The inner planets are closer to the Sun than the asteroid belt and have surfaces made of rock (Mercury, Venus, Earth, and Mars).

• The outer planets are beyond the asteroid belt and have surfaces made of gases (Jupiter, Saturn, Uranus, and Neptune)

Page 4: HOW DO WE OBSERVE OBJECTS IN SPACE? OBSERVATIONS OF OBJECTS IN SPACE.

PLEASE ANSWER THE FOLLOWING QUESTIONS WITH YOUR GROUP

• How do the surface materials of the inner and outer planets differ?

• What other objects are in a solar system?

• Based on the given information where can you infer the asteroid belt is?

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LET’S COMPARE PLANETS…

• Jupiter-____________________________________________________________________________________________________• Saturn-

____________________________________________________________________________________________________• Venus-

____________________________________________________________________________________________________• Mars-

____________________________________________________________________________________________________

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PLEASE ANSWER THE FOLLOWING QUESTIONS WITH YOUR GROUP

• What could the fact that there are volcanoes on Venus mean about the interior of the planet?

• How do winds form on Jupiter?

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HOW DO THE MOONS COMPARE?

• A moon is a natural object that orbits a planet. Different planets have different numbers and sizes of moons.

• Moons are also called satellites. A satellite is an object that circles around another object. Moons are natural satellites, people also put objects into space that orbit Earth or other planets. These are called artificial satellites.

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WHAT ARE ASTEROIDS, COMETS, AND METEORS?

• A comet is a mixture of frozen gases, dust, ice, and rock that moves in an elliptical orbit around the Sun. Comets have three parts: coma, nucleus and gaseous tail(s).

• An asteroid is a rock that revolves around the Sun.

• If an object crosses paths with Earth and enters Earth’s atmosphere, it is called a meteor. When a meteor lands on the ground, it is called a meteorite.

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PLEASE ANSWER THE FOLLOWING QUESTION WITH YOUR GROUP

• Draw the location of the tail and head of a comet as it moves around the Sun.

ILLUSTRATION: