Unit 5 Q1 Review

Why would scientists be interested in evidence of past liquid water on Mars?

• Life has only been found where there is water.

• Martians might be afraid of water.

• Earth could get water from Mars if necessary.

• This means there is currently life on Mars.

Which factor is not essential for supporting life on Earth?

• Atmosphere containing oxygen

• Distance from the sun

• Presence of the Moon

• Water in liquid form

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What is another reason we can live on Earth according to our solar system’s layout?

• Proximity to the sun

• Number of life forms

• Speed of rotation

• Direction of revolution

Which of the following is not provided by the Sun?

• Appropriate temperature for life

• Light for photosynthesis

• Maintenance of Earth's orbit

• Rotation of Earth on its axis

Tags

NGSS.MS-LS1-6

The atmosphere of Earth is primarily composed of which two gases?

• water vapor and ozone

• oxygen and nitrogen

• nitrogen and methane

• oxygen and water vapor

Which characteristic best supports the possibility of life on Mars?

• Water molecules have been found on Mars surface.

• The tilt of Mars on its axis is similar to Earth, causing similar seasons.

• 95% of the atmosphere on Mars is CO2.

• Mars and Earth are similar in size, shape and density.

Tags

NGSS.MS-ESS2-4

The gases in the atmosphere protect us by:

• blocking out dangerous rays from the Sun.

• creating the oxygen needed for respiration.

• expanding and contracting to produce heat.

• protecting us from the vacuum of space.