SC 6 E 7 3

A weather forecaster predicts that there will be high humidity and high levels of precipitation in an area. How does humidity differ from precipitation?

• Humidity is water that falls as a liquid, and precipitation is water that falls as a solid.

• Humidity is water that falls as a solid, and precipitation is water that falls as a liquid.

• Humidity comes from gaseous water mixed in air, and precipitation is liquid or solid water.

• Humidity describes water conditions related to climate, and precipitation describes those related to weather.

Which stars in the diagram are the coolest?

• white dwarfs

• super giants

• the stars in the upper left corner on the main sequence

• there is no way to know from the diagram

Tags

NGSS.MS-ESS1-3

Felix examined several photos of stars. To compare their temperatures, he looked at the colors of the stars. He organized the photos in order from coolest to hottest. Which of these answers shows the correct order?

• red, yellow, white, blue

• white, blue, yellow, red

• yellow, white, blue, red

• blue, yellow, white, red

Which statement best describes stars?

• Large planets that are composed mostly of gases

• Celestial bodies made up of gas that give off light

• Faint dots of light that can be seen from Earth's surface

• Objects that form in the outer parts of the solar system

The sun produces large amounts of energy. By what process does the sun produce energy?

• radiation

• convection

• nuclear fusion

• electromagnetic radiation

Tags

NGSS.HS-ESS1-1

Which of the following pairs of terms directly relates to the actual brightness of a star?

• absolute magnitude and luminosity

• apparent magnitude and luminosity

• size and luminosity

• absolute magnitude and apparent magnitude

Which term best describes the movement of matter due to temperature differences in the sun?

• conduction

• convection

• nuclear fusion

• radiation

Which one of these claims can be made based on evidence in the graph?

• Red super giants have higher temperatures than main sequence stars.

• Blue giants have higher temperatures than white dwarfs.

• Blue giants have higher temperatures than red super giants.

• Main sequence stars have higher temperatures than white dwarfs.

Scientists have determined that the sun will continue to consume hydrogen in its core for another five billion years or so. After the hydrogen is consumed, what will be its primary fuel?

• Helium

• Magnetism

• Nitrogen

• Oxygen

Tags

NGSS.HS-ESS1-1

In which layer of the sun does convection occur?

• core

• chromosphere

• convection zone

• photosphere