Monday Feb 10

Why does Earth experience seasons?

• because Earth is so close to the sun

• because the Earth rotates on its axis

• because Earth's axis is tilted

• because Earth revolves around the sun

Which must be true for you to view the full moon phase of the moon?

• the sun,Earth, and moon are in a straight line

• the sun has to be between the Earth and the moon

• the Earth, sun, and moon form an "L" shape

• the sun has to revolve around the moon

What do Venus and Earth have in common?

• they both have the same kind of atmosphere

• they both are about the same size

• they are the same distance from the sun

• they both have liquid water

How long does it take for the moon to make one revolution around the Earth?

• 365 days

• 24 hours

• 28 days

• 100 days

What two things determine how strong the gravitational pull that an object has on another object?

• how close the objects are to each other and how much mass the object has

• how close the object is to the sun and how large the object is

• how fast the object travels and how long it takes to travel around the sun

• how long it takes the object to rotate once on its axis and how much mass the object has

What two things are needed to calculate an object's density?

• mass & volume

• volume & size

• mass & length

• size & volume

Which statement is true?

• stars can move around

• moons revolve around planets

• stars revolve around planets

• our sun is a planet

What is humidity?

• the temperature of the air

• how much water vapor is in the air

• how cold it is

• how fast the wind is blowing

Which are compounds? Select all that apply.

• sugar

• oxygen

• hydrogen

• oxygen

• carbon

Which are elements? Select all that apply.

• carbon

• salt

• silver

• carbon dioxide

• oxygen