6.7 Test

Which statement correctly describes the concentration of gases in the Earth’s atmosphere?

• Nitrogen 21%, Oxygen 78%, other gases 1%

• Nitrogen 78%, Oxygen 21%, other gases 1%

• Nitrogen 1%, Oxygen 78%, other gases 21%

• Nitrogen 78%, Oxygen 1%, other gases 21%

Which gas is dangerous at Earth’s surface but is helpful to us in the upper atmosphere?

• Oxygen

• Ozone

• Nitrogen

• Water vapor

Earth’s atmosphere makes the planet suitable for living things by doing which of the following?

• Increases the amount of gravity on Earth

• Keeps us from floating off into space

• Provides gases for living things on Earth to breathe

• Allows for liquid water to exist on Earth.

• Protects the Earth from meteorites.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

If air temperature was measured at each of the locations shown in the picture, which location would MOST LIKELY record the highest TEMPERATURE?

• Location W

• Location X

• Location Y

• Location Z

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

The main layers of the atmosphere are classified according to how they change in ___.

• air pressure

• temperature

• altitude

• concentration of ozone

When climbing a high mountain, you get out of breath easily because ___.

• it is too cold

• the air is denser high in the mountains

• the air is less dense and the oxygen molecules are spread farther apart

• air pressure is greater in the mountains

Use this picture to answer the question below.

If air pressure was measured at each of the locations shown in the picture, which location would most likely record the lowest AIR PRESSURE?

• Location W

• Location X

• Location Y

• Location Z

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

How much precipitation is shown in the rain gauge below?

• 30.2 mm

• 32 mm

• 34 mm

• 35 mm

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

Students are testing the hypothesis that a certain amount of heat causes water to evaporate faster than a certain amount of wind. In this experiment, they will allow a certain amount of water to be absorbed into a sponge. They keep the water amount the same by weighing the sponge on a triple beam balance after the water is absorbed. They will add heat and measure the weight of the sponge every hour for four hours. They will repeat the same experiment using a fan instead of heat. The weight of the sponge after each hour is what part of the experiment?

• The independent variable

• The dependent variable

• The control

• The constants

Type the correct answer in the spaces provided. What is the temperature on the thermometer in degrees Celsius?

Tags

NGSS.MS-PS1-4