Models of Space
What model places Earth at the center of the solar system?
Geocentric or Heliocentric
What is Geocentric?
What force pulls planets toward the Sun?
A. Heat
B. Gravity
C. Light
D. Energy
B Gravity
Which object is mostly made of ice, dust, and rock?
A. Asteroid
B. Planet
C. Comet
D. Moon
C Comet
Which list shows ONLY the inner planets?
A. Mercury, Venus, Earth, Mars
B. Earth, Mars, Jupiter, Saturn
C. Jupiter, Saturn, Uranus, Neptune
D. Venus, Earth, Jupiter, Neptune
A. Mercury, Venus, Earth, Mars
Which substance is important for life and is one thing scientists search for on other planets?
A. Liquid water
B. Metal
C. Dust
D. Rock
A. Liquid water
What model places the Sun at the center of the solar system?
Geocentric or Heliocentric
What is Heliocentric?
What causes a moving object to keep moving unless a force changes its motion?
A. Gravity
B. Inertia
C. Temperature
D. Revolution
B Inertia
Which object is usually smaller than an asteroid?
A. Planet
B. Meteoroid
C. Comet
D. Galaxy
B Meteoroid
Which list shows ONLY the outer planets?
A. Mercury, Venus, Earth, Mars
B. Mars, Jupiter, Saturn, Uranus
C. Jupiter, Saturn, Uranus, Neptune
D. Earth, Jupiter, Uranus, Neptune
C. Jupiter, Saturn, Uranus, Neptune
Which planet would MOST LIKELY have conditions that could support life?
A. A planet with no atmosphere or water
B. A planet with liquid water and a suitable temperature
C. A planet that is extremely hot and dry
D. A planet made only of gas
B. A planet with liquid water and a suitable temperature
Which scientist is best known for the geocentric model?
A. Copernicus
B. Galileo
C. Ptolemy
D. Newton
D. Ptolemy
What is the path of a planet around the Sun called?
A. Rotation
B. Galaxy
C. Orbit
D. Axis
C Orbit
Which materials make up most asteroids?
A. Ice and water
B. Gas and dust
C. Rock and metal
D. Water and gas
C Rock and Metal
Which list shows the planets in the correct order from the Sun?
A. Mercury, Earth, Venus, Mars, Jupiter, Saturn, Neptune, Uranus
B. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
C. Venus, Mercury, Earth, Mars, Saturn, Jupiter, Uranus, Neptune
D. Mercury, Venus, Mars, Earth, Jupiter, Uranus, Saturn, Neptune
B. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Scientists discover a planet with liquid water. What other information would be useful when deciding if it could support life?
A. Its color
B. Its name
C. Its atmosphere and temperature
D. The number of pictures taken of it
C. Its atmosphere and temperature
Which scientist proposed a model with the Sun at the center of the solar system?
A. Ptolemy
B. Copernicus
C. Galileo
D. Newton
B. Copernicus
A planet is moving forward while gravity pulls it toward the Sun. What will happen?
A. The planet will orbit the Sun.
B. The planet will stop moving.
C. The planet will leave the solar system.
D. The planet will crash into another planet.
A. The planet will orbit the Sun.
Scientists observe an object that develops a bright tail when it gets close to the Sun. Which object are they MOST LIKELY observing?
A. Comet
B. Planet
C. Asteroid
D. Moon
A Comet
Our solar system is located in which galaxy?
A. Andromeda Galaxy
B. Solar Galaxy
C. Milky Way Galaxy
D. Earth Galaxy
C. Milky Way Galaxy
Scientists find two planets.
Planet A: liquid water, atmosphere, moderate temperature
Planet B: no liquid water, no atmosphere, extremely hot
Which statement is BEST supported by this information?
A. Planet B has better conditions for life.
B. Both planets definitely contain life.
C. Planet A has conditions more suitable for life.
D. Neither planet can ever support life.
C. Planet A has conditions more suitable for life.
Why did scientists change from the geocentric model to the heliocentric model?
A. The Sun became larger.
B. Earth changed its orbit.
C. New evidence better explained how planets move.
D. Scientists stopped studying space.
C. New evidence better explained how planets move.
Which statement BEST explains why Earth stays in orbit around the Sun?
A. Gravity and inertia work together.
B. Earth's atmosphere pushes it around the Sun.
C. The Moon pulls Earth around the Sun.
D. The Sun's light pushes Earth forward.
A. Gravity and inertia work together.
A scientist finds a small rocky object moving through space. Which object is it MOST LIKELY to be?
A. Galaxy
B. Star
C. Meteoroid
D. Planet
C Meteoroid
Which list correctly shows these objects from smallest to largest?
A. Earth → Solar System → Milky Way Galaxy → Universe
B. Earth → Milky Way Galaxy → Solar System → Universe
C. Solar System → Earth → Universe → Milky Way Galaxy
D. Universe → Milky Way Galaxy → Solar System → Earth
A. Earth → Solar System → Milky Way Galaxy → Universe
Which group contains conditions scientists would MOST LIKELY study when looking for a planet that could support life?
A. Water, atmosphere, temperature, and energy
B. Color, rings, size, and name
C. Number of moons, color, shape, and name
D. Distance from Earth, brightness, color, and size
A. Water, atmosphere, temperature, and energy