Earth in Space

Quiz
•
Science
•
6th - 8th Grade
•
Hard
+2
Standards-aligned
Jude Sanford
FREE Resource
27 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following types of galaxies have disk-like arm structures that surround a central bulge?
lenticular
elliptical
spiral
Answer explanation
A spiral galaxy, such as the Milky Way, has a hot, spherical bulge at its center and is surrounded by a disk of spiral-like arms made mostly of gas, dust, and younger stars. Bars that span the spiral arms are present in some barred, spiral galaxies.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Of the following, which color star has the highest surface temperature?
Answer explanation
Blue stars have the highest surface temperatures, at over 50,000 K.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If there is a first-quarter moon tonight, how many days will pass until the next full moon?
7 days
21 days
14days
28 days
Answer explanation
A first-quarter moon occurs between a new moon and a full moon. A lunar cycle is 28 days. It takes ¼ of a lunar cycle, or 7 days, for the moon to progress from a first-quarter moon to a full moon.
Tags
NGSS.MS-ESS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following stars will go through a red giant phase after its hydrogen is gone?
only low-mass stars
stars of all sizes
only stars that will eventually form black holes
only high-mass stars
Answer explanation
Stars of all sizes go through a red giant phase. When the hydrogen is burned, but the star is not hot enough to burn helium, gravitational effects take over and the star cools and shrinks leaving a large shell of helium. The helium ignites and the star becomes a red giant.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When the ______ is burned, but the star is not hot enough to burn helium, gravitational effects take over and the star cools and shrinks leaving a large shell of helium.
Tags
NGSS.HS-ESS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements regarding meteorites is true?
Meteorites are mainly composed of gas
Meteorites are meteors that strike the Earth
Meteorites are located at the center of the universe
Meteorites are comets that have fallen out of their orbit
Answer explanation
Not all meteors reach the Earth. Those that make it through the atmosphere and strike the Earth are called meteorites.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In 1929, Edwin Hubble measured the redshift of several galaxies and determined that galaxies farther away from Earth have a greater redshift. Which of the following best describes why this observation led to the Big Bang theory?
It implied an oscillating universe that expands and shrinks.
It implied that the early universe was very dark but an explosion made it brighter.
It implied an expanding universe that started as only a single point.
It implied that the early universe was once very hot and now glows red.
Answer explanation
A redshift indicates that a light source is moving away from an observer. Distant galaxies, with the greater redshift, must be moving away from the Earth faster than nearby stars, indicating an expanding universe. If the universe expanded throughout its existence, it would have started with a sudden expansion from a single point, which we call the Big Bang.
Tags
NGSS.HS-ESS1-2
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