Science Test 3 Flashcards
The time it takes the Earth to rotate once
24 hour/1 day
revolve
the movement of Earth around the sun
the source of light responsible for the daylight
sun
the time when part of the Earth is facing away from the sun
nighttime
the time it takes to revolve once around the sun
1 year
365 days
apparent motion
when a star seems to move across the Earth’s sky
the area created when light is blocked
shadow
axis
a real or imaginary line a spinning object turns around
rotate
the turning of the Earth on its axis
the time when part of the Earth is facing the sun
daytime
What causes the apparent motion of the Sun?
Earth’s rotation and tilt
How is a shadow formed?
an object blocks light
What creates day?
Earth faces toward the sun
What creates night?
Earth faces away from the sun
How much of Earth experiences daylight at a time?
half
1/2
When the sun hits an object in the MORNING what will the shadow be like?
low and long
When the sun hits an object at NOON what will the shadow be like?
almost no shadow
When the sun hits an object in the LATE AFTERNOON what will the shadow be like?
low and long
How is the Earth positioned?
tilted
How does the Earth rotate?
on its axis
revolve
a complete trip around an object in a circular path
What device uses shadows to help tell time?
sundial
What direction is the Sun’s apparent motion across the sky?
east to west
