The Air Around You

What are the three components needed to produce a fire as illustrated in the fire triangle?

• Oxygen, Water, Fuel

• Heat, Light, Fuel

• Oxygen, Heat, Fuel

• Oxygen, Heat, Water

Which component of air is essential for fire production, as discussed in the learning material?

• Carbon dioxide

• Nitrogen

• Oxygen

• Hydrogen

What is the atmosphere?

• The envelope of gases that surrounds the planet

• The layer of soil covering the Earth

• The oceans and seas of the Earth

• The outer space surrounding the Earth

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What does weather refer to?

• The condition of Earth's atmosphere at a particular time and place

• The types of plants in an area

• The geological features of Earth

• The rotation of Earth on its axis

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Does the weather change often or is it fairly constant from day to day?

• Changes often

• Fairly constant

• Never changes

• Only changes seasonally

Tags

NGSS.MS-ESS2-5

What does Earth's atmosphere resemble when compared to an apple in the analogy provided?

• A thick layer of skin on the apple

• A thin film of water droplets on the apple

• The flesh of the apple

• The core of the apple

From the perspective of space, how does Earth's atmosphere appear?

• As a thick cloud covering the entire planet

• As a thin layer near the horizon

• As a solid shell around the Earth

• As a vast ocean covering Earth's surface

What is an atom?

• The smallest unit of a chemical element that can exist by itself

• A type of molecule

• A particle of a liquid

• A type of gas

Tags

NGSS.MS-PS1-1

What are molecules made up of?

• Single atoms

• Two or more atoms

• Particles of liquids and solids

• Nitrogen and oxygen only

Tags

NGSS.MS-PS1-1

What is the most abundant gas in the Earth's atmosphere?

• Oxygen

• Carbon dioxide

• Nitrogen

• Argon