In this hemisphere, the sun always appears to the south. As the Earth rotates on its axis, the sun hits each location in the morning at an angle. This becomes more vertical as the sun appears to pass more directly overhead around noon. As Earth continues to spin toward sunset, the increasing angle causes shadows to lengthen! All rights reserved.
However, the size and shape of the shadow can change. These changes are caused by the position of the light source. When we are outside on a sunny day, we can see how our shadows change throughout the day.
When the Sun is low on the horizon, the shadows are long. When the Sun is high in the sky, the shadows are much shorter. We can create the same effects indoors by changing the position of a torch as it shines on an object. Although the shadow effects are the same, the reasons for the moving light source are very different.
When we use a torch to make long and short shadows indoors, it is the light source that moves. When the Sun makes long and short shadows outdoors, it is the Earth, not the light source Sun , that moves. From our vantage point on Earth, it appears that the Sun moves across the sky during the day. We see the Sun appear to rise in the east and set in the west.
Actually, the Earth is spinning rotating on its axis so it is our view of the Sun in the sky that changes during each hour cycle of light and dark. We see the sunrise when our location on Earth spins towards the light of the Sun. As the Earth continues to spin, we see the Sun higher in the sky.
As the Earth spins away from the light, we see the sunset. Correct answer: The measurement of angles decreases as the day progresses.
Possible Answers: The measurements will be very similar. There is no way to predict what the measurements will be. Correct answer: The measurements will be very similar. Possible Answers: True. Correct answer: True. Explanation : The statement in the question is correct. The NASA provided photo below is depicting what shadow pattern that happens nightly? Possible Answers: The Earth's rotation. Correct answer: The Moon phases. Explanation : The shadow pattern that is depicted in the photo is the moon phases.
Possible Answers: First Quarter. Correct answer: New Moon. Possible Answers: In about 1 month. Correct answer: In about 1 month. Possible Answers: the shadow will be at a different place. Correct answer: the shadow will be at a different place and have a different length. Explanation : Patterns within shadows can be seen by measuring the length and direction and comparing them daily.
Possible Answers: Moon. Correct answer: Earth. Copyright Notice. View Tutors. Patricia Certified Tutor. Davetta Certified Tutor. Northwestern University, Bachelors, Sociology. University of Phoenix, Masters, Education. Rhea Certified Tutor. Report an issue with this question If you've found an issue with this question, please let us know. Do not fill in this field. Louis, MO Or fill out the form below:. Company name.
They begin to grasp that the lengths of shadows change as the Earth revolves around the sun, and that longer shadows are due to the Northern Hemisphere's tilt in relation to the sun. These observations are a building block for understanding the reasons for seasons. Preparation Start this activity in September or any time that will allow repeated observations over several months.
Involve students in choosing an area in the schoolyard or playground that gets a lot of sunlight.
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