When the sun is in the sky, shining light on Earth's surface
What is day?
100
When we do not see the Sun in the sky because Earth's surface is in Earth's shadow.
What is night?
100
The end of the Earth's axis of rotation, marking the northernmost point of the Earth.
What is the North Pole?
100
An instrument for determining directions, as by means of a freely rotating magnetized needle that indicates magnetic north.
What is a compass?
100
The line about which a rotating body, such as the Earth, turns.
What is axis?
200
A star positioned along the line in space that includes the axis of rotation of the Earth. For this reason, the star does not appear to move in the sky, but remains fixed above the North Pole.
What is the North Star?
200
Curved path that a body follows when revolving around another body.
What is orbit?
200
Location or position relative to the points of the compass.
What is orientation?
200
A body circling around another object; the Earth circles around the Sun.
What is revolution?
200
A body spinning on it's axis; the Earth spins on it's axis.
What is rotation?
300
Materials that light can pass through clearly.
What is transparent?
300
Materials through which light cannot pass.
What is opaque?
300
The dark areas where opaque objects block light from reaching the ground.
What is a shadow?
300
The direction in which the sun rises.
What is east?
300
The direction in which the sun sets.
What is west?
400
The direction a shadow is pointing at noon.
What is north?
400
The length and direction of a shadow at 8:00 AM.
What is long and west?
400
Day of the year that sun is at it's lowest position.
What is December 21st?
400
The amount of time it takes the Earth to complete one spin on it's axis.
What is 24 hours?
400
The reason we have night and day.
What is the Earth's rotation on it's axis?
500
The reason we have different seasons.
What is the Earth's revolution around the Sun?
500
The direction of a shadow at 3:00 PM
What is Northeast?
500
Two things we can tell by observing our shadows.
What is the time of day and the directions N, S, E and W?
500
The day of the year that the sun is highest in the sky.