The product of nuclear fusion is ____.

• hydrogen

• oxygen

• helium

• nitrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What advantage do space telescopes have over telescopes used on Earth?

• They are much cheaper to build.

• They are not affected by Earth’s atmosphere.

• They do not need lenses or mirrors to gather light.

• They last longer.

The sun’s surface is made up mostly of ____.

• helium

• ammonia

• hydrogen

• oxygen

Tags

NGSS.MS-PS1-1

The layer of the sun that radiates most of the light that reaches Earth is the ____.

• photosphere

• corona

• chromosphere

• ionosphere

Tags

NGSS.MS-ESS1-1

Which part of the sun lies directly above the visible “surface” of the sun?

• photosphere

• chromosphere

• corona

• ionosphere

In Figure 24-1, what feature is labeled A?

• corona

• photosphere

• chromosphere

• prominence

Using Figure 24-1, what solar features are labeled C?

• prominences

• solar winds

• solar flares

• sunspots

By observing sunspots, Galileo concluded that the sun ____.

• was dying

• was solid

• rotated on its axis

• dimmed and brightened

Sunspots appear dark because they are ____.

• relatively cool

• relatively hot

• deep holes

• solid areas

Which of the following is NOT an advantage of radio telescopes over optical telescopes?

• Radio telescopes are less affected by atmospheric conditions.

• Radio telescopes are less expensive.

• Radio telescopes can operate 24 hours a day.

• Radio telescopes have better resolution.

Tags

NGSS.HS-PS4-3