Outer Space

During space exploration it was discovered that the moon is covered with several craters. What is the reason for this?

• Collided with asteroids

• Sun spots

• Earth's gravity

• Because it does not have air

Currently, there is no solid evidence that life exist on Mars. Based on this picture, this is most likely because...

• iron oxide, creating Mars's red color, does not support life.

• Mars has too many volcanic eruptions to allow life.

• Mars has a minimal atmosphere.

• sunlight does not reach Mars.

Planets X and Y are the most likely planets to support life for all of the following reasons EXCEPT —

• They are both smaller planets.

• They both have an atmosphere

• The both have frozen water.

• They are a good distances away from the Sun

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Enough water has been discovered on Mars to cover the whole planet in several meters of it if melted. In addition, several places on Mars rise to a temperature of 80 degrees Fahrenheit during the day. Although these conditions seem suitable for life, there is currently no life on Mars. What is a good hypothesis for why this is the case?

• The sunlight is not strong enough to help plants grow.

• The gravity on Mars is lighter than the gravity on Earth.

• The salts in the Martian soil are poisonous to plants.

• The composition of the atmosphere is not suitable for life.

Tags

NGSS.MS-LS1-5

The region on a globe that is blue indicates water on Earth. Water is essential for life on Earth for all of the following reasons EXCEPT —

• it helps the Earth circulate in all three forms of matter.

• it helps regulate the temperature on Earth

• it is what living organisms are made out of.

• plants use it in photosynthesis

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Fill in the blank.

Outer space is almost a perfect _______________, full of cosmic voids. Due to gravity pulling all matter to the strongest source.

• vacuum

• universe

• ocean

• open space

Celestial objects that orbit a star are known as ---

• moons

• solar systems

• planets

• extraterrestrial

___________ are celestial bodies in space that orbit around stars, while ____________ are celestial bodies that orbit around planets.

• Moons / planets

• Planets / moons

• Suns / moons

• Planets / Suns

The largest planet in our solar system is...

• Earth

• the Sun

• Jupiter

• Saturn

Tags

NGSS.MS-ESS1-3

If the Earth were any closer to the Sun, how would conditions for life on Earth change?

• The conditions would be exactly the same.

• The conditions would cause more ice to form.

• The conditions would cause more plant life to grow.

• The conditions would be too hot to support life.

Tags

NGSS.MS-ESS2-6

NGSS.MS-LS1-5