Starter: What is the difference between rotation and revolution? 11/6/ Rotation, Revolution, and Seasons Activity Practice/Application/Connect ion/Exit: Lab Rotation, Revolution, and Seasons Activity

February 4, 2014 AGENDA Objectives 8.7 A Students will model and illustrate how the tilted Earth rotates on its axis, causing day and night, and revolves around the Sun causing changes in seasons by reading, writing, and talking while completing notes and a rotation/revolution and seasons activity. 1 Starter 2. Notes 3. Activity 4. Exit

Date Lecture/ Activity/ Lab Page 10/16 Unit 5 vocabulary /17 Quiz/Writing /20 Weathering Notes /21 Weathering Lab /22 Climate, Wind and Ocean Currents / /24 Wind and Currents Writing /27 Fronts and Air Masses /28 Pressure and Air Movement /29 Weather Walk /30 Reading Weather Maps /3 Severe Weather and Precipitation /5 Rotation, Revolution, and seasons Table of Contents Convection and Ocean Currents

The Earth in Space… a. The Earth rotates around an axis. b. The rotational axis is tilted to 23.5°. c. The Earth revolves around the Sun. PracticePractice

Rotation… a. The Earth rotates on its axis once every 24 hours. b. The direction of rotation direction is counterclockwise (west to east) if you are viewing Earth from above the North Pole.

Rotation… c. Earth’s rotation results in… day and night sunrise and sunset. Movement of stars

Revolution… a. The Earth revolves around the Sun once every days, which is equal to 1 year on Earth.

Revolution… b. The path around the Sun, or orbit, is not a circle. 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.

Revolution… c. The average distance from the Earth to the Sun is called an astronomical unit (AU). This is about 150,000,000 kilometers.

Reasons for the Seasons… a. The 23.5°tilt of the Earth on its axis.

Reasons for the Seasons… b. The hemisphere tilted toward the Sun receives more direct radiation. This season is summer.

Reasons for the Seasons… c. The hemisphere tilted away from the Sun receives less radiant energy. This season is winter.

Points in Earth’s orbit around the Sun… a. June 21, 22: Summer Solstice The Sun reaches its highest point in the sky. The length of daylight hours are the longest.

Points in Earth’s orbit around the Sun… b. December 21, 22: Winter Solstice The Sun reaches its lowest point in the sky. The length of daylight hours are the shortest.

c. March Spring Equinox and September Fall Equinox Earth is not tilted toward or away from the Sun. Each hemisphere receives similar amounts of radiant energy. The length of daylight and nighttime hours are equal.

Write 3 things you learned Starter: How do you think the Earth and Sun affect the seasons and day and night? 11/5/ Rotation, Revolution, and Seasons 11/5/2014 Practice : notes Edusmart Application: Ws Connection: Describe what you would observe if you were able to watch the sun and moon rise and set over a period on months. Would they always rise and set the same way?? Exit : Discuss and describe a way that you could model rotation and revolution to an elementary student Rotation, Revolution, and Seasons