1. RAP 1. _____ water found underground (groundwater) 2. _____freezing rain (precipitation) 3. _____clouds that block out the sun and form in layers (clouds0 4._____process that produces rain (water cycle 2) 5. _____most abundant gas in the atmosphere (atmosphere)

2. Key Questions 1. What is the reason for the seasons? 2. What is the angle Earth is tilted on its axis? 3. How is the Earth tilted during summer and winter? 4. How is the Earth tilted during spring and fall? 5. What angle is the Earth tilted for no seasonal change? 6. Why do shadows appear longer in the winter?

3. Seasons 1. The Earth has seasons because it is tilted on its axis.

4. 2. The Earth’s tilt is 23.5 degrees 2. The Earth’s tilt is 23.5 degrees

5. 3. The hemisphere that is tilted toward the sun has summer. 3. The hemisphere that is tilted toward the sun has summer. The hemisphere that is tilted away from the sun has winter The hemisphere that is tilted away from the sun has winter

6. 4. Spring and Fall occur when the Earth is neither tilted toward or away from the sun 4. Spring and Fall occur when the Earth is neither tilted toward or away from the sun

7. 5. The Earth would need to be at a 0 degree angle for the Earth to have no seasons 5. The Earth would need to be at a 0 degree angle for the Earth to have no seasons

8. 6. Shadows appear longer because sunlight reaches the Earth at different angles 6. Shadows appear longer because sunlight reaches the Earth at different angles

9. Do Now 1. _____thunderstorm cloud 2. _____thermal energy that travels in waves from the sun 3. _____is caused by the Earth’s tilt on its axis 4._____underground area of rock and sediment and is filled with groundwater 5. ____how water moves from the ocean to the atmosphere

10. 1. What is the summer solstice? 2. What is the winter solstice? 3. What is the autumnal and vernal equinox?

11. The Summer Solstice First day of summer First day of summer Longest day of the year Longest day of the year North Pole is tilted toward the sun North Pole is tilted toward the sun Sunlight strikes the Earth at a shorter angle Sunlight strikes the Earth at a shorter angle Summer for the U.S., England, China Summer for the U.S., England, China Winter in Argentina, South Africa, and Australia Winter in Argentina, South Africa, and Australia

12. The Winter Solstice First day of winter First day of winter Shortest day of the year Shortest day of the year North Pole is tilted away from the sun North Pole is tilted away from the sun The sun’s rays strike at a larger angle The sun’s rays strike at a larger angle Winter in U.S, England, and China Winter in U.S, England, and China Summer in Argentina, South Africa, and Australia Summer in Argentina, South Africa, and Australia

13. Autumnal Equinox (autumn) Vernal Equinox (spring) Autumnal - first day of fall Autumnal - first day of fall Vernal - first day of spring Vernal - first day of spring Days and nights are equal Days and nights are equal Sunlight strikes the Earth at the same angle Sunlight strikes the Earth at the same angle