What Makes Day and NIght?
Which part of Earth is lighted?
The part of Earth turned toward the sun is lighted.
How many time zones is the Earth divided into?
The Earth is divided into 24 time zones.
How many orbits does the Earth go around the sun every year?
The Earth makes one orbit around the sun every year.
What happens when sunlight falls on an object?
The object's shadow points away from the sun when sunlight falls on an object.
How many hours in a day?
There are 24 hours in a day.
Which part of Earth is in shadow?
The part of Earth turned away from the sun is in shadow.
What is a time zone?
A time zone is like a north to south slice of Earth.
True or False. Earth's axis and the Sun's axis are at the same angle.
False
When are shadows long?
Shadows are long when the sun is low in the sky.
How many hours does a clock show?
A clock shows 12 hours.
Why does light from the sun only fall on 1/2 of the Earth at one time?
Light from the sun only falls on 1/2 of the Earth at one time because light travels in a straight line in space.
If you traveled all the way around the Earth in the middle, how many time zones would you pass through?
You would pass through 24 time zones if you traveled all the way around the Earth in the middle.
True or False. While Earth orbits the Sun, it also turns on its axis.
True
When are shadows short?
Shadows are short at noon when the sun is high overhead.
What does A.M. represent?
A.M. represents the period from midnight to noon.
How long does it take for Earth to turn on its axis?
It takes 24 hours for Earth to turn on it axis.
How many time zones are in the United States?
There are 4 time zones in the United States.
Which hemisphere stays in the Sun's light longer?
The hemisphere that tilts towards the sun stays in the Sun's light longer.
What did people in ancient times use to tell time?
People in ancient times built sundials to tell time.
What does P.M. represent?
P.M. represents the period from noon to midnight.
What would happen if Earth did not turn on its axis?
If Earth did not turn on its axis, 1/2 of Earth would always be daylight and 1/2 of Earth would always be darkness.
How do time zones help people tell time?
Time zones help people tell time by making sure that the Sun rises in the morning and that it is noon about the middle of the day everywhere on Earth.
When the Earth's hemisphere tilts away from the sun, what season is it?
The season is winter when the Earth's hemisphere tilts away from the sun.
What is a sundial?
A sundial is a disk with numbers around the edge that represent hours.
What are A.M. and P.M. are abbreviations for?
A.M. and P.M. are abbreviations for the Latin phrases meaning "before noon" and "after noon".