Sun, Moon, & Earth

Which movement causes day and night on Earth?

• rotation of Earth

• revolution of Earth around the Sun

• Earth’s elliptical orbit in space

• moon’s orbit around Earth

During which moon phase does Earth see more than half of the moon’s surface?

• first quarter

• third quarter

• waxing gibbous

• waning crescent

How long is the lunar cycle?

• 14 days

• 24 hours

• 365 days

• 27.3 days

Which phase of the moon is shown?

• full moon

• first quarter

• waning gibbous

• waxing crescent

When we look at the sun, what layer are we viewing?

• photosphere
• chromosphere
• corona
• convection zone

What is a light year?

• the speed that light travels in a year
• the speed that light travels from the sun to earth
• the distance light travels in a year

How much of the solar system's total mass is the sun?

• Less than 10%
• Approximately half
• 73.8%
• Over 99%

A large collection of stars, dust, and gas held together by gravity is a.........

• solar systerm

• galaxy

• constellation

• astronomy

What can we use to measure the distance of objects in our solar system?

• Astronomical unit

• Cosmic mile

• Astrological kilometre

• Light- year

What is the result of the Earth revolving around the Sun?

• The existence of seasons

• day-night transitions

• Coriolis effect

• It keeps the axis of our planet tilted.