Sun and Shadows Test Review Explain how shadows
- Slides: 41
Sun and Shadows Test Review
Explain how shadows are different in the morning than at midday?
Shadows are longer in the morning and shorter at midday.
Sarah lives in Indiana, and when she looks up at the sky, she can see the Sun. Michelle lives in China, which is on the opposite side of the planet. What will the sky look like to Michelle, if she looks up at the same time as Sarah?
It will be dark, and there will be no Sun.
It is nighttime where Cindy lives. Describe what she would see if she looked up at the sky.
She will not be able to see the Sun in the sky.
A ____ is the time needed for Earth to complete one rotation on its axis.
day
Some students were using a globe and lamp to model the Sun and the Earth, what will happen as the students spin the model?
Some parts of the model Earth will have daytime and some will have night.
In the morning, Rafael notices that the Sun appears on one side of the sky. In the evening, he notices that the Sun appears to be on the other side of the sky. However, in class, Rafael learned that the Sun does not actually move across the sky from one side to another. Why does it appear that Sun starts the day one side of the sky and ends day on the other?
The Sun appears to move across the sky because of Earth’s rotation.
A picture is shown below of a shadow being produced by the Sun.
What will happen to the shadow when the sun moves almost above the tree?
The shadow will get shorter and change directions.
How does a shadow change when the light source is moved?
The shadow changes size and shape.
Explain how shadows are formed.
Shadows form when an object blocks light from reaching a surface.
Kelly measures the length of her shadow on the playground at different times of the day. She records her data below.
Time Length (in. ) 7: 00 AM 255 8: 00 AM 178 9: 00 AM 120 10: 00 AM 85 Explain Kelly’s results.
The Sun is higher in the sky later in the morning because her shadow gets shorter.
What makes the daytime sky bright?
The Sun.
Shadows are _____ in the evening than they are at midday.
longer
A student wants to model how shadows change during the day using a globe (Earth), a tooth pick (a person standing on Earth), and a flashlight (the Sun). Explain what she could do to model changing shadows during the day.
She should keep the flashlight in one position and rotate the globe with the tooth pick on it.
What would happen if Earth did not turn on its axis?
Half of Earth would always be in daylight and the other half in darkness.
Fill in the blanks.
Earth, and all the other planets, orbit ______.
Around the Sun.
As planets orbit, they are also _______.
rotating
The Sun is the highest at _____.
noon
The Sun is lowest at ____.
Early morning and early evening.
Draw and describe a model of why we have day night and day on Earth.