Earth's Motion
Earth’s rotation takes about…
What is 24 hours?
The phase of the Moon you see depends on…
What is how much of the sunlit side of the Moon faces Earth?
In a heliocentric system, Earth revolves around…
What is the sun?
Characteristics used to classify stars include…
What is size, brightness, and temperature?
One complete revolution of Earth around the Sun takes about one…
What is 1 year?
The Moon appears half-lit during…
What is first quarter and third quarter phases?
What do all inner planets have in common?
What is they are small and have rocky surfaces?
A star is ___ when nuclear fusion begins.
What is born?
Earth has seasons because…
What is its axis is tilted as it moves around the Sun?
The Moon’s gravity is responsible for causing these on Earth.
What are tides?
Meteoroids usually come from…
What are comets or asteroids?
The lifetime of a star depends on its…
What is mass?
An equinox occurs when…
What is neither end of Earth’s axis is tilted toward or away from the Sun?
This is the phase when we see the entire sunlit half of the Moon.
What is a full moon?
Saturn’s rings are mostly made of…
What are chunks of ice and rock?
A supernova is the explosion of a dying…
What is a high-mass star?