What happens to the density of a substance as its temperature increases in an open system?

• It decreases

• It increases

• It stays the same

• It becomes zero

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following best describes the true shape of the Earth?

• A perfect cube

• An Oblate Spheroid

• A flat disc

• A perfect triangle

What is the altitude of Polaris equal to?

• Your latitude

• Your longitude

• The Earth's diameter

• The sun's altitude

Which event is most dense at 4°C?

• Water

• Air

• Iron

• Mercury

What is the main reason the moon has phases?

• The moon changes shape

• The angle between the earth and moon changes as the moon revolves around us

• The sun moves around the moon

• The earth stops rotating

Tags

NGSS.MS-ESS1-1

Which of the following is true about the equator?

• It always has 12 hours of day-light

• It has 24 hours of night

• It never receives sunlight

• It is the coldest place on Earth

What does the Coriolis Effect result from?

• The earth's rotation

• The sun's gravity

• The moon's revolution

• The earth's magnetic field

Tags

NGSS.MS-ESS2-6

What does a blue shift indicate about an object in space?

• It is getting closer to Earth

• It is getting further away from Earth

• It is not moving

• It is spinning faster

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-4

Which of the following best describes a dynamic equilibrium?

• Balance

• Chaos

• Growth

• Destruction

Tags

NGSS.HS-LS2-6

Why do planets sometimes appear to move backwards (retrograde) in the sky?

• As the earth passes them in space

• Because they stop moving

• Because the sun blocks their light

• Because they are closer to the moon

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4