1. Seasons and Eclipses Mrs. Mihai

2. Earth Facts The Earth rotates on its ??? – 23 ¼ degrees A complete rotation takes a little over ??? hours (1 day) As the Earth rotates, it is ??? around the Sun. The Earth takes ??? days to go around the Sun One side of the Earth is always facing the Sun

3. Seasons are caused by The tilt of the Earth The revolution of the Earth The difference in direct and indirect light from the Sun

4. TILT The Earth is tilted on its axis The tilt does not change – it always remains pointed in the same direction

5. The Revolution of the Earth Where the Earth is in its revolution around the sun determines if the Earth is tilted towards or away from the sun.

6. The Difference in Direct and Indirect Light from the Sun In winter: –Part of the Earth is tilted AWAY from the Sun –Part of the Earth gets INDIRECT energy from the Sun In summer –Part of the Earth is tilted TOWARD the Sun –Part of the Earth gets DIRECT energy from the Sun

8. Hemispheres: * The seasons are opposite for Northern and Southern Hemispheres : winter in Northern = summer in Southern

9. Seasons: Winter Winter Solstice Hemisphere tilted away from the Sun Shorter days (less hours of sunlight) Cooler weather because the Sun is lower in the sky.

11. Seasons: Spring Vernal Equinox Earth’s tilt is neither towards nor away from the Sun Moderate temperatures Length of days and nights are equal

13. Seasons: Summer Summer Solstice Hemisphere tilted toward the Sun Longer days (more hours of sunlight) Warmer weather because the Sun is higher in the sky

15. Seasons: Fall Autumn Equinox Earth’s tilt is neither towards nor away from the Sun Moderate temperatures Length of days and nights are equal

18. Total Lunar Eclipse An eclipse of the Moon Occurs at Full Moon The entire Moon passes through Earth's umbral shadow. These events are quite striking due to the Moon's vibrant red color during the total phase.

19. A Lunar Eclipse

20. Total Lunar Eclipse

21. Solar Eclipse An eclipse of the Sun Occurs at New Moon The Moon passes between Earth and Sun At least twice a year

22. Solar Eclipse Preumbra Umbra

23. Solar Eclipses