Have you ever wondered why we have day and night? It’s all because of how the Earth moves! The Earth spins around an invisible line called an axis. This spinning is called rotation, and it takes about 24 hours to complete one full turn.
As the Earth rotates, different parts of it face the sun. When your part of the Earth is facing the sun, it’s daytime for you. The sun shines brightly, and you can see everything around you. But when your part of the Earth turns away from the sun, it’s nighttime. The sky gets dark, and it’s time to rest and sleep.
This change from day to night happens over and over again, every single day. It’s a pattern that never stops! This is why we can always count on the sun rising in the morning and setting in the evening.
Did you know that the Earth is always moving, even though we can’t feel it? It’s spinning like a top, and that’s what makes day and night happen!
Now you know why we have day and night. Isn’t it amazing how the Earth’s movement creates such an important part of our daily lives?
Shadow Tracking: On a sunny day, go outside with a friend or family member and bring a piece of chalk. In the morning, stand in one spot and have your friend trace your shadow with the chalk. Come back to the same spot in the afternoon and trace your shadow again. Notice how the shadow changes throughout the day. Discuss why you think the shadow moves and what it tells you about the position of the sun in the sky.
Day and Night Art: Create a drawing or painting that shows both day and night on the same page. Use bright colors like yellow and blue for the daytime side, and darker colors like black and purple for the nighttime side. Include things you see during the day, like the sun and birds, and things you see at night, like stars and the moon. Share your artwork with your class and explain why you chose those elements for each time of day.
Question Time: Think about what activities you do during the day and at night. Make a list of three things you do in the daytime and three things you do at night. Discuss with a partner why certain activities are better suited for day or night. For example, why do we play outside during the day and sleep at night?
Here’s a sanitized version of the YouTube transcript:
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The Earth rotates about its axis every 24 hours. During this time, the part of the Earth facing the sun experiences daytime, while the part of the Earth facing away from the sun experiences nighttime. This repeating pattern is called the alternation of day and night.
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