Please check my answers? My textbook won't load, so i've had to use google and guess.
1. Scientists hypothesize that the sun formed ____. (1 point)
less than a billion years ago
**from a cloud of gas and dust
less than a million years ago
from a chunk of Jupiter
2. Two of the inner planets are ____.
(1 point)
Venus and Saturn
Mars and Venus
Earth and Pluto
**Mercury and Jupiter
3. Pluto alters the orbit of which planet? (1 point)
Uranus
Saturn
**Neptune
Jupiter
4. Small pieces of rock that enter Earth's atmosphere at speeds of 15 to 70 km/s and burn up are called ____.
(1 point)
stars
meteors
**meteorites
asteroids
5. ____ is the largest planet in the solar system, is the fifth planet from the sun, and has colorful clouds. One of its 17 moons is the most volcanically active object in the solar system. The planet has a liquid ocean and an atmosphere comprised mostly of hydrogen and helium. It may have a rocky core, although its extreme pressure and temperature would make the core different from any rock on Earth.
(1 point)
Jupiter
Saturn
Uranus
**Neptune
6. Water is found as a solid, liquid, and gas on ____.
(1 point)
Mercury
Venus
**Earth
Mars
7. Galileo used his telescope to discover evidence for the sun-centered model of the solar system. This evidence included all of the following EXCEPT ____.
(1 point)
Venus going through phases
Venus revolving around the sun, not Earth
the discovery of Neptune and Pluto
**both a and b
8. A main sequence star becomes a ____ after it uses up the hydrogen in its core. (1 point)
nebula
supernova
**black hole
giant
9. Which of the letters in Figure 12-2 points to the comet's nucleus? (1 point)
A
B
C
**none of the above
10. The spiral shape of the Milky Way galaxy CANNOT be seen from Earth because ____.
(1 point)
we are located above the galaxy
we are located within one of its spiral arms
our view is blocked by the sun
**none of the above
11. Dark-colored, relatively flat regions of the moon's surface that were formed when interior lava filled large basins are called _____. (1 point)
**craters
volcanoes
maria
sedimentary rocks
12. Its _____ makes Sirius the brightest star in the night sky. (1 point)
parallax
color
**absolute magnitude
apparent magnitude
13. As Earth travels in its _____, different constellations are visible at different times of the year. (1 point)
atmosphere
**orbit
galaxy
axis
True or False
14. Our sun is a part of a binary system. (1 point)
true
**false
1. Scientists hypothesize that the sun formed ____. (1 point)
(0 pts) less than a billion years ago
(1 pt) from a cloud of gas and dust
(0 pts) less than a million years ago
(0 pts) from a chunk of Jupiter
1 /1 point
2. Two of the inner planets are ____.
(1 point)
(0 pts) Venus and Saturn
(1 pt) Mars and Venus
(0 pts) Earth and Pluto
(0 pts) Mercury and Jupiter
0 /1 point
3. Pluto alters the orbit of which planet? (1 point)
(0 pts) Uranus
(0 pts) Saturn
(1 pt) Neptune
(0 pts) Jupiter
1 /1 point
4. Small pieces of rock that enter Earth's atmosphere at speeds of 15 to 70 km/s and burn up are called ____.
(1 point)
(0 pts) stars
(1 pt) meteors
(0 pts) meteorites
(0 pts) asteroids
0 /1 point
5. ____ is the largest planet in the solar system, is the fifth planet from the sun, and has colorful clouds. One of its 17 moons is the most volcanically active object in the solar system. The planet has a liquid ocean and an atmosphere comprised mostly of hydrogen and helium. It may have a rocky core, although its extreme pressure and temperature would make the core different from any rock on Earth.
(1 point)
(1 pt) Jupiter
(0 pts) Saturn
(0 pts) Uranus
(0 pts) Neptune
1 /1 point
6. Water is found as a solid, liquid, and gas on ____.
(1 point)
(0 pts) Mercury
(0 pts) Venus
(1 pt) Earth
(0 pts) Mars
1 /1 point
7. Galileo used his telescope to discover evidence for the sun-centered model of the solar system. This evidence included all of the following EXCEPT ____.
(1 point)
(0 pts) Venus going through phases
(0 pts) Venus revolving around the sun, not Earth
(1 pt) the discovery of Neptune and Pluto
(0 pts) both a and b
0 /1 point
8. A main sequence star becomes a ____ after it uses up the hydrogen in its core. (1 point)
(0 pts) nebula
(0 pts) supernova
(0 pts) black hole
(1 pt) giant
0 /1 point
9. Which of the letters in Figure 12-2 points to the comet's nucleus? (1 point)
(1 pt) A
(0 pts) B
(0 pts) C
(0 pts) none of the above
1 /1 point
10. The spiral shape of the Milky Way galaxy CANNOT be seen from Earth because ____.
(1 point)
(0 pts) we are located above the galaxy
(1 pt) we are located within one of its spiral arms
(0 pts) our view is blocked by the sun
(0 pts) none of the above
1 /1 point
11. Dark-colored, relatively flat regions of the moon's surface that were formed when interior lava filled large basins are called _____. (1 point)
(0 pts) craters
(0 pts) volcanoes
(1 pt) maria
(0 pts) sedimentary rocks
1 /1 point
12. Its _____ makes Sirius the brightest star in the night sky. (1 point)
(0 pts) parallax
(0 pts) color
(0 pts) absolute magnitude
(1 pt) apparent magnitude
13. As Earth travels in its _____, different constellations are visible at different times of the year. (1 point)
(0 pts) atmosphere
(1 pt) orbit
(0 pts) galaxy
(0 pts) axis
1 /1 point
True or False
14. Our sun is a part of a binary system. (1 point)
(0 pts) true
(1 pt) false
1 /1 point
dude
thats alot to ask for