Warm-up Which planet has the fastest revolution around the sun? Which planet has the slowest revolution around the sun? Please clear your desk of everything except a pencil and your science notebook!

Know Do Rotation Revolution Seasons Day/Night Explore Earth’s movements of revolution and rotation.

EARTH'S ROTATION AND REVOLUTION

The Earth in Space The Earth rotates around an _________. The rotational axis is tilted to 23.4 degrees. The earth _________ around the sun.

Earth’s Rotation Rotation is the spinning of the Earth on its axis. The time for one rotation is 24 hours. The speed of rotation 24,855 miles/24 hr or 1,038 miles/hr Click image to view Earth’s rotation.

Earth’s Revolution A revolution occurs as the earth moves around the sun. Time for one revolution = 365 1/4 days = 8,766 hours The shortest distance between the Earth and Sun is about 147,000,000 km and occurs in January. The furthest distance between the Earth and Sun is about 152,000,000 km and occurs in July. The average distance form the Earth to the Sun is called an astronomical unit. This is about 150,000,000 km.

Earth’s Revolution

Earth’s Orbit The path an object takes as it revolves around another object.

Around and Around We Go Every second, that you sit in this classroom, the Earth's orbital motion carries you about 18 miles through space.

SPACE EARTH MOVEMENTS

Round One 1. The Earth spinning on its axis. Rotation Revolution 2. Going around a larger body. Rotation Revolution Revolution 3. 24 hours. Round One Rotation Revolution 4. Causes the Earth’s seasons. Rotation Revolution 5. Creates a year. Rotation Revolution 6. The moon going around Earth. Rotation Revolution

Identify the motion being shown in each of these pictures Identify the motion being shown in each of these pictures. Each team must write their answers for each figure in the form of a question. Figure #1 Rotation Revolution Planet Round Two Figure #2 Earth Rotation Revolution

Venus is about ¾ the distance that Earth is from the Sun Venus is about ¾ the distance that Earth is from the Sun. Which of the following units of time best identifies the approximate length of a solar year on Venus? 30 days 90 days 180 days 270 days Explain.