7.9a

The diagram below represents the Sun and planets of our solar system. Which planet on the above diagram represents Earth?

• G

• H

• K

• M

Tags

NGSS.MS-ESS1-1

If Earth were much smaller, it would not support life because it would not have enough mass to

• collect needed radiant energy from the Sun.
  

• maintain a gravitational pull on the Moon.

• have sufficient gravity to hold an atmosphere.
  

• rotate on its axis once per day.

Tags

NGSS.MS-PS2-4

How does Carbon Dioxide in Earth's atmosphere allow Earth to support life? 

• Animals need Carbon Dioxide to breathe.

• Carbon Dioxide traps radiation from the sun to warm Earth and is used by plants in photosynthesis.

• Carbon Dioxide is produced by plants so that animals can breathe.

• Carbon Dioxide is needed to make water.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Ozone contributes to supporting life on earth by blocking

• radiation

• water vapor.

• helium ions.

• atmospheric heat.

Tags

NGSS.HS-PS4-4

Which characteristic of earth is most responsible for its ability to support life?

• carbon dioxide present in the atmosphere

• earth is terrestrial

• proximity to the sun

• presence of ice

Tags

NGSS.MS-ESS2-4

Habitable zones are the areas...

• where the planet orientations cause seasons

• around a star where water can be liquid

• where only planets the size of Earth can form

• where life is guaranteed to be found on planets

Tags

NGSS.MS-ESS2-4

Select ALL 3 of the characteristics of Earth that allow life to exist here.

• Distance from the sun

• Orbital period of 365 days

• Presence of water

• Atmosphere that contains essential gases and protects from radiation

Tags

NGSS.MS-ESS2-4

In order for life as we know it to exist, a planet must have ______________________

• heat

• animals

• liquid water

• solar energy

Tags

NGSS.MS-ESS2-4

Which of the following is NOT a reason that our atmosphere allows life to exist on Earth?

• The atmosphere provides essential gases for life

• The atmosphere provides protection from radiation

• The atmosphere insulates the planet to keep the temperature consistent

• The atmosphere creates gravity to keep living things on Earth

What important roles does the Sun do for Earth?

• The Sun's gravity allows the Earth to move fast enough to have both day and night in 24 hours.

• The Sun's solar flares and storms shower the Earth with additional radiation.

• The Earth's position in relation to the Sn causes eclipses.

• The Sun's radiation provides needed heat to the Earth , adn the light from the Sun only shines on half of the Earth at a time.

Tags

NGSS.MS-ESS1-1