Beyond a shadow of a doubt!
What is a shadow?
A. A light area behind an opaque object
B. A dark area behind an opaque object
B. A dark area behind an opaque object
Which time of the day are shadows the shortest?
noon
Will a shadow be longer at 8 am or at 11 am?
8 am
How long does it take for the Earth to make one complete rotation?
24 hours or 1 day
Why are length of days different on other planets?
Each planet has its own rotation time.
Is your shadow long or short at sunrise?
Long
Which day of the year has shows the shortest noon shadow?
A. December 21 B. June 21 c. March 21
D. September 21
June 21
Why do you have a shadow?
because I am opaque
How can you tell it is morning by looking at your shadow?
is is long and facing west
Why does the Earth do that causes us to have a day and night?
The Earth rotates (spins) on its imaginary axis.
Which direction does your shadow face at sunrise?
West
Why is the noon shadow shortest on June 21?
Because that is when the Sun is highest in the sky.
True or false - The sun appears lower in the sky during the winter.
True
How would day and night be affected if Earth did not rotate?
Half of the Earth would always be in daylight and the other half would always be in night.
What are two main reasons for the seasons?
Earth tilt and Earth revolution around the Sun.
Why does your shadow face west at sunrise?
Because the Sun is in the East
Which direction do shadows face just before sunset?
East
In which direction does the sun rise?
East
What does planet rotation mean?
The planet spinning on its imaginary axis
What determines the length of a year on Earth?
A. Revolution time
B. Rotation time
A. Revolution time.
Name the two times of the day when your shadow is the longest.
At sunrise and just before sunset
What causes shadows to change size and position throughout the day? (Don't say because the Sun is moving!)
The Earth is rotating on its axis.
How do you know that the Earth rotates counter clockwise?
Because the sun appears to rise in the East and set in the West.
What does a Planet's revolution mean?
The planet's orbit or circling around the Sun.
Why is a day on Venus longer than a day on Earth?
Because Venus has a slower rotation time.
or
Because Earth has a faster rotation time.