Earth Science

Earth Structure

100

Which is not an Earth system?

A. atmosphere

B. hydrosphere

C. ionosphere

C. ionosphere

200

The Earth has how many layers?

A. 4

B. 3

C. 2

C. 2

300

Which is the innermost layer of the Earth?

A. mantle

B. crust

C. core

C. core

400

Which layer of Earth is the hottest?

A. core

B. crust

C. mantle

A. core

500

What percent of the Earth is covered by oceans?

A.  70%

B.  30%

C.  10%

A. 70%

The Sun

100

The sun is a ______?

A. atom

B. star

C. planet

B. star

200

Which is not a layer of the Sun?

A. corona

B. chromosphere

C. hydrosphere

C. hydrosphere

300

A cloud of gas and dust is called a ____?

A. nebula

B. gravity

C. rocky planet

A. nebula

400

Which type of star will the Sun eventually become?

A. neutron star

B. red supergiant

C. white dwarf

B. red supergiant

500

What is the average distance between Earth and the Sun?

A. 1 AU

B. 1 km

C. 1 light-year

A. 1 AU

The Solar System

100

Which solar system object is the largest?

A. Jupiter

B. Neptune

C. the Sun

C. the Sun

200

Which inner planet is the hottest?

A. Earth

B. Venus

C. Mercury

B. Venus

300

Which best describes an asteroid?

A. icy

B. rocky

C. wet

B. rocky

400

Which is a terrestrial planet?

A. Neptune

B. Venus

C. Pluto

B. Venus

500

What gives Mars its reddish color?

A. soil rich in iron oxide

B. ice caps of frozen carbon dioxide

C. liquid water in gullies

A. soil rich in iron oxide

Rocks

100

Which is not a type of rock?

A. igneous

B. sedimentary

C. mitosis

C. mitosis

200

Rocks are classified by ____?

A. texture and composition

B. size and brightness

C. wetness and dryness

A.  texture and composition

300

Which type of rock form deep within Earth's crust?

A. metamorphic

B. igneous

C. sedimentary

A. metamorphic

400

How do metamorphic rocks forms?

A. compaction and cementation

B. cooling and crystallization

C.  extreme temperature and pressure

C. extreme temperature and pressures

500

The series of processes that change one type of rock into another type of rock is called the _____?

A. the water cycle

B. the transition cycle

C. the rock cycle

C. the rock cycle

The Moon

100

The moon has ___ phases?

A. 4

B. 6

C. 8 

C. 8

200

A ____ is the daily rise and fall of sea level.

A. eclipse

B. tide

C. lunar

B. tide

300

Which is not a moon phase?

A. full moon

B. new moon

C. red moon

C. red moon

400

The moon revolves around the Earth in ___ days.

A. 28

B. 10

C. 60

A. 28

500

During one lunar cycle, the Moon ____.

A. completes its entire sequence of phases.

B. revolves around Earth twice.

C. Earth is at its closest point to the Sun

A. completes its entire sequence of phases.