After you have created your model of the Sun, Earth and Moon use this activity to respond share what you've learned. Use the tool to take a picture of your model. Then use the button to answer the questions below: 1. Imagine you are teaching a 4th grader about the rotation of the Earth. What would you tell them? Hint: Include an explanation of why the Sun appears to move across the sky? 2. Then explain about the revolution of the Earth around the Sun. Hint: Include the amount of time it takes for one revolution.