2 Winter in southern hemisphere June 21 sun over Tmpic of Cancer constant tilt of 23 Tropic of Cancer Tropic of Capricom Sun March 21 sun over Equator autumn (in northern hemisphere) 4 304N 0 (Equator) December 21 Sun over Tropic of Capricorn September 21 sun over equator Spring (in northern hemisphere) The Earth's yearly revolution around the sun. (Hambly, A. et.al Spot On Social Sciences. Heinnemann.Santon2012) summer in southern hemispher 2.2.1. What is the difference between the Earth's rotation and the Earth's revolution. (2) (3) 2.2.2. Identify the three factors that cause the seasons. 2.2.3. Explain a summer solstice. Use the southern hemisphere as an example. 2.2.4. Explain an equinox, provide the dates 2.2.5. Use the earth's revolution around the sun to explain how we come to have a leap year. (3) (3) (3) 2.2.6. Name the three things that are caused by the tilt of the earth's axis. (3) [17]​