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observe how Earth orbits the Sun. learn the Sun is at the center of the Earth’s orbit. understand one revolution of the Earth around the Sun is a year. Key Question How does Earth move around the Sun? Vocabulary (See What the heck? Explanation of Science at the end for definitions.) Sun Earth Orbit Revolution Year Model Materials
Step 1: The Sun. The Sun actor and object goes in the center of a room or outdoor area and stays in one place. The Sun actor can spin their object very slowly. On average, the sun rotates around itself once every 27 days. Step 2: The Earth orbits the Sun.
EARTH’S ORBIT AND ROTATION. 1. How long does it take the Earth to rotate on its axis? ________________________________________________. 2. Why do we have a leap year every four years? ________________________________________________________________________________________________.
As Earth rotates, it seems like the sun is moving across the sky, but it’s really the Earth that is spinning. It takes 24 hours to complete one rotation, which is why there are 24 hours in one day. It spins from West to East.
Earth, as well as the other planets in our solar system, rotate on their axes (spin), and they also move around the sun in an eliptical orbit. Diferent planets rotate and orbit at diferent rates. Earth rotates once every 24 hours, and orbits the sun every 365.25 days.
Calculate the Sun’s Rotation. Follow steps 1-6 to calculate the sun’s rotation based on the data you collected in the worksheet Sunspot Mapping Grid. Use the completed Sunspot Mapping Grid worksheet to determine the longitude for the major sunspot group on days 1-4.
Learning goals: Define: Solar radiation, revolution, aphelion, perihelion. To find out how revolution affects the Earth-Sun distance. Understand how Earth-sun distance affects the amount of solar radiation the Earth receives.
