science 6 presentation-Q4 SEASONS OF THE EARTH.pptx

presentation

1. The Seasons of the Earth

2. Science Word Drill Northern Hemisphere Southern Hemisphere Summer Solstice Autumnal Equinox Winter Solstice Vernal Equinox

3. 1. Summer Solstice When the North Pole tilts directly towards the Sun during June 22. When the South Pole tilts directly to the Sun during December 22.

4. Summer Solstice The Northern Hemisphere experiences Summer while the Southern Hemisphere experiences Winter.

5. Summer Solstice

6. 2. Autumn or Fall As the Earth moves, Summer turns to Autumn or Fall. During September to November, the axis moves sideways and both the Northern and Southern Hemisphere receive equal heat and light.

7. Autumn or Fall

8. Autumnal Equinox When the Sun is directly overhead in the equator, this is called Fall or Autumnal Equinox. The Autumnal Equinox happens on September 23 when the night time and daytime are equal.

9. Autumnal Equinox

10. 3. Winter Solstice During December – February, the North Pole is facing away from the Sun. The Northern Hemisphere receives least energy coming from the Sun while the Southern Hemisphere receives the greatest heat and light.

11. Winter Solstice

12. Winter Solstice Areas in the Northern Hemisphere will experience Winter while areas in the Southern Hemisphere will experience Summer. During Winter days, night time is longer than day time. Winter arrives with Winter Solstice on December 22.

13. Winter Solstice

14. 4. Spring From March to May, the Earth’s axis is not pointed towards the Sun. Both the Northern and Southern Hemisphere receive equal heat and light.

15. Vernal Equinox

16. Spring and Vernal Equinox The Spring Equinox comes on March 21 in the Northern Hemisphere. At this time the Southern Hemisphere experiences Fall or the Autumnal Equinox.

17. Spring and Vernal Equinox

18. Key Concepts: Rotation is the movement of the Earth on its axis while Revolution is the movement of the Earth around the Sun.

19. Key Concepts: Earth’s rotation causes day and night while Earth’s revolution causes the four season (Summer, Autumn, Winter, Spring) in the Temperate Zones. The Seasons are caused by the tilt in the Earth’s axis.

20. Amazing Facts About The Earth’s Seasons

21. 1. The Midnight Sun

22. Midnight Sun The Sun never sets in 24 hours. During Summer Months in the places near the North and South Poles. (Norway and Alaska)

23. 2. The Solstices June 21 marks the day when the Earth is turned the most toward the Sun. This is known as Summer Solstice. It is the longest, sunniest day of the year.

24. 2. The Solstices December 21 marks the day when the Earth is turned the farthest from the Sun. This is known as Winter Solstice. It is the shortest, darkest day of the year.

25. 3. Response to Light Plants  and trees lose their leaves in response to the shortening days and cooler temperatures of fall. Trees and plants open new leaf and flower buds as the weather warms in spring.

26. 4. Hibernation Winter is a hard time for animals. They have a hard time finding food. Many hibernate or sleep more.