Earth Science Ch. 28

Comets are made up of ______.

• ice and rock

• snow and rock

• rock and heat

• rock and shale

Tags

NGSS.MS-PS1-1

Approximately how old is our solar system thought to be?

• 15 million years

• 250 million years

• 4.6 billion years

• 15 billion years

Tags

NGSS.HS-ESS1-6

The bright celestial object that is often called both the morning star and the evening star is ________.

• Jupiter

• the Andromeda galaxy

• a large comet

• Venus

Scientists are convinced that other stars have planets in orbit about them. Without visiting these distant solar systems, how can they be sure?

• If our star has planets, then others must have them

• There is evidence of a weak gravitational pull working on other stars.

• Other stars may have formed at the same time as the Sun.

• Space probes have returned photographs of these planets.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Nearly 5 billion years ago, a rotating mass of dust and gas called the solar nebula gave rise to

• the Sun and several other stars

• our solar system

• the Milky Way galaxy

• all solar systems

Which of the inner planets has the highest average surface temperature?

• Mercury

• Venus

• Earth

• Mars

Our solar system formed about 4.6 billion years ago when

• a large planet broke into many pieces.

• a cloud of interstellar dust and gas began to condense.

• stars collided with one another.

• Jupiter formed as the largest planet.

Tags

NGSS.MS-ESS1-2

Neptune's atmosphere had a persistent storm called __________.

• the Giant Red Dot

• the Great Dark Spot

• the Spot

• the Big Cloud

Where did Saturn's rings most likely come from?

• the formation of Saturn

• gravitational attraction of ringlets

• solar system formation

• leftover debris from a moon that was destroyed

What characteristics do the gas giants have in common?

• ring systems and moons

• composed of lightweight elements such as hydrogen and helium

• are very large, 15 to 300 times the mass of Earth

• all of the answers are correct