Show:
the sun
shadows
seasons
day and night
100
How long does it take the earth to travel one complete orbit around the sun?
365 1/4 days
100
Shadows are longer in the summer or winter?
summer
100
In Canada it is winter so in Chile it is __________.
summer
100
How many hours doesn the earth take to rotate?
24 hrs
200
In what direction does the sun rotate in the sky? N,S, E,W
East to West
200
The sundial's gnomon needs to be pointed in what direction?
north
200
The autumn equinox lands on what date?
Sept.21ish
200
The earth rotates counterclockwise from _______ t0 _____.
west to east
300
What are two ways to protect your eyes from the sun?
pin hole camera and #14 welder's glasses
300
True or False: Your shadow will be the shortest at noon.
True
300
What are the reasons for the seasons? Name two
The tilt of the earth's axis and the revolution of the earth around the sun.
300
Why does day and night occur?
Because of the rotation of the earth on its axis.
400
Why do you need to protect your eyes from the sun?
To prevent damage that can happen after looking at the sun after three seconds.
400
The shadows will be the longest in what parts of the day?
In the morning: When the sun rises--early morning and in the late afternoon before sun sets (must be sun )
400
What happens to the sun's rays in the winter?
They are more spread out.
400
How much of the earth is facing the sun at one time?
half
500
What is a midnight sun?
When the sun doesn't set or rise in the arctic (north).
500
Draw a sundial with a shadow at noon, at 9am and at 4pm.
I will have a picture of it.
500
In the winter in the northern hemisphere the earth is tilted _______________ from the sun.
Away
500
what is the degree of the earth's axis tilted?
23.5 degrees