The Celestial Sphere

What is the name of the imaginary sphere on which all celestial objects appear to be projected?

• Celestial Sphere

• Solar Sphere

• Astronomical Sphere

• Lunar Sphere

What is the term for the point directly above an observer's head on the celestial sphere?

• Nadir

• Zenith

• Meridian

• Horizon

Which line divides the celestial sphere into the northern and southern celestial hemispheres?

• Ecliptic

• Celestial Equator

• Prime Meridian

• Tropic of Cancer

What is the main reason Earth experiences seasons?

• Distance from the Sun changes

• Earth's tilt on its axis

• The Sun's temperature varies

• The Moon's gravity

Tags

NGSS.MS-ESS1-1

How many degrees is Earth's axis tilted relative to its orbital plane?

Which phase of the Moon occurs when the Moon is between the Earth and the Sun?

• Full Moon

• New Moon

• First Quarter

• Third Quarter

Tags

NGSS.MS-ESS1-1

What is the term for the shadow cast by Earth or the Moon during an eclipse?

• Corona

• Umbra

• Penumbra

• Aurora

Tags

NGSS.MS-ESS1-1

Which type of eclipse occurs when the Moon passes directly between the Earth and the Sun?

• Lunar Eclipse

• Solar Eclipse

• Annular Eclipse

• Penumbral Eclipse

Tags

NGSS.MS-ESS1-1

What is the name of the path that the Sun appears to follow across the sky over the course of a year?

• Meridian

• Ecliptic

• Equator

• Horizon

Tags

NGSS.MS-ESS1-1

During which phase is exactly half of the Moon's visible surface illuminated?

• New Moon

• Full Moon

• First Quarter

• Waxing Crescent

Tags

NGSS.MS-ESS1-1