Unit 4 vocabulary test (Science)

Question 1

Atmosphere

Answer 1

The atmosphere is a layer of gas surrounding a planet, held by gravity.

Question 2

Biosphere

Answer 2

The biosphere is where all life on Earth exists, like land, water, and air.

Question 3

Cryosphere

Answer 3

Areas on Earth where water is always frozen.

Question 4

Geosphere

Answer 4

Earth’s interior, rocks, minerals, landforms, and surface-shaping processes.

Question 5

Hydrosphere

Answer 5

All the water on Earth, both on the surface and underground.

Question 6

Altitude

Answer 6

The height of an object above a specific level.

Question 7

Green House Gases

Answer 7

Gases in the Earth’s atmosphere that traps heat.

Question 8

Greenhouse effect

Answer 8

The process where heat is trapped near Earth’s surface by greenhouse gases.

Question 9

Ozone

Answer 9

An odorless, colorless gas made of three oxygen atoms, found in the environment.

Question 10

Thermosphere

Answer 10

The layer of Earth’s atmosphere above the mesosphere and below the exosphere.

Question 11

Mesosphere

Answer 11

The highest layer of the atmosphere, where gases are mixed rather than layered by mass.

Question 12

Stratosphere

Answer 12

It is above Earth’s weather and changes very little.

Question 13

Troposphere

Answer 13

The lowest layer of Earth’s atmosphere

Question 14

Ionosphere

Answer 14

A very active part in the atmosphere

Question 15

Weather

Answer 15

The daily condition of the atmosphere.

Question 16

Radiation

Answer 16

The transfer of energy through electromagnetic waves or particles.

Question 17

Climate

Answer 17

Average weather patterns for a specific region.

Question 18

Air pressure

Answer 18

The force pushed by the atmosphere on Earth’s surface due to the weight of the air.

Question 19

Wind

Answer 19

A natural movement of air, often strong, from high pressure to low pressure areas.