Step 1: Make a copy of this Slideshow. (Click File/Make Copy/Entire Presentation)

Please add your name to the title.

Step 2: Watch this video.

Step 3: Consider the following questions:
What does the lamp represent?
Does the tilt of the Earth change as it orbits the Sun?
Are the circles of light on the globe all the same size?
What do the “concentrated” circles of light on the globe represent?
What do the “spread out” circles of light on the globe represent?
Why do the circles of light remain the same in the center of the globe even as the Earth orbits the Sun?

Step 4: Complete the chart on the next slide.

Step 5: Write a paragraph stating your claim. Your paragraph must include evidence and reasoning to support your claim.

(YouTube video is called What Causes the Seasons? by funsciencedemos)

Why do we have seasons?
Directions: Please complete the chart below to answer the question and provide evidence and reasoning to support your claim. Please include evidence from the video.
Claim: We experience different seasons because the tilt of the earth as it travels around the sun.
Evidence: What evidence supports the claim?
(Please remember to use evidence from the video.)
1 .
2.
3.
Reasoning: Explain how your evidence supports your claim about why we experience different seasons.
1.

Why do we have seasons?

Directions: Please complete the chart below to answer the question and provide evidence and reasoning to support your claim. Please include evidence from the video.
Claim: We experience different seasons because of the tilt of the earth as it travels around the sun.
Evidence: What evidence supports the claim?
(Please remember to use evidence from the video.)
1. The video shows a lamp representing the sun and a globe representing the earth. As the lamp is tilted towards or away from the globe, the intensity of the light changes, simulating the changing seasons.
2. The video also demonstrates the earth's tilt by showing the globe tilted at different angles while orbiting the sun. This suggests that the tilt of the earth affects the distribution of sunlight and thus the seasons.
3. The video mentions that the circles of light on the globe represent the amount of sunlight received in different regions. As the tilt of the earth changes, the circles of light shift, indicating the changing seasons.

Reasoning: Explain how your evidence supports your claim about why we experience different seasons.
1. The evidence from the video supports the claim that the tilt of the earth causes different seasons. When the earth is tilted towards the sun, a specific region receives more direct sunlight and experiences summer. Conversely, when the earth is tilted away from the sun, that region receives less direct sunlight and experiences winter. This is depicted in the video by the changing intensity of light on the globe as the lamp representing the sun is tilted.
2. The video's demonstration of the earth's tilt while orbiting the sun further supports the claim. When the earth is tilted, different parts of the globe receive varying amounts of sunlight, leading to the different seasons experienced in different regions.
3. The circles of light on the globe in the video represent the distribution of sunlight on the earth. The "concentrated" circles of light represent regions where the sunlight is more intense, indicating summer. On the other hand, the "spread out" circles of light represent regions where the sunlight is less intense, indicating winter. This demonstrates how the tilt of the earth affects the distribution of sunlight and the occurrence of the seasons.