2. Sun, Earth, & Moon Objective Warm-Up O You will identify and explain the effects the sun has on the earth. O Identify the seasons. O What is the same or different about the seasons? O What do you think causes the difference in seasons? O What do you think causes the difference in what time it gets dark outside?

3. The Earth: O is the third planet from the Sun, O is an elliptical sphere O rotates on its imaginary axis counterclockwise every 24 hours or 1 day O appears blue in space because it is 70% water O revolves around the sun every 365 1/4 days or 1 year

4. What we breathe: O 78% nitrogen O 21% oxygen O 1% argon, neon, carbon dioxide, neon, & krypton

5. Which one is the smallest? Which one is the largest? O Can you put these in size order? O Place the following in order from largest to smallest. O Moon O Sun O Earth

6. Answer: Sun, Earth, then moon O The sun is the largest O Next in size is the Earth. O The moon is smaller than the Earth.

7. Which of these is the biggest? O AThe moon O BThe Earth O CThe sun O DJupiter

8. Answer: “C” The sun is the largest! Our sun is the only star in our solar system. The sun is also the largest heavenly body in our solar system.

9. The moon revolves around Aitself Bthe Earth Cthe sun Dthe solar system

10. O The moon revolves or orbits the Earth once every 29 days. O We all ways see the same side of the moon because the moon rotates and revolves at about the same speed.

11. Earth Science Question: Rotation O What is rotation? (define) O The rotation of the Earth on its axis causes- A.days B.months C.seasons D.years

12. Rotation causes day & night. O Rotation is the turning or spinning of the Earth in one place on its imaginary axis. O Rotation of the earth on its axis causes day & night. (answer A).

13. Earth Science Question: O Which of these shows the location of a polar ice cap? O Which of these shows the location of the equator?

14. Polar Ice caps= A Equator= C

15. Which of these is caused by the turning of the Earth? A. Summer and winter B. Stars C. Day and night D. Moon phases

16. The turning of the Earth causes “C” Day & Night

17. When the moon is seen from the Earth as a whole circle, it is called a- A. Crescent moon B. Full moon C. Half moon D. New moon

18. When the moon is seen from the Earth as a whole circle, it is called a FULL MOON.

19. Which of these is the next phase of the moon? New Moon --- Waxing Crescent --- ? A Full Moon B Waning Crescent C First Quarter D Waxing Gibbous

20. The next major phase of the moon would be… “C” First quarter. Just think about it… O New moon (can only get bigger = WAXING) O Then…First quarter O WANING Gibbous is next O Finally…Full Moon. O Then gets smaller …

21. The revolution of the Earth around the Sun takes- Aa day & night or 12 hours Ba week or 7 days Ca month or 29-31 days Da year or 365 ¼ days

22. The revolution of the Earth around the sun O Takes 365 ¼ days or one year. NOTE: O Due to the tilt of the Earth’s axis during revolution, the Earth experiences seasons.

24. Seasons Hemisphere tilted toward the sun (direct) O Daylight hours are longer and the sun’s more direct causing more energy (HEAT = SUMMER) Hemisphere tilted away from the sun (indirect) O Daylight hours are shorter and the sun LESS direct causing less energy (HEAT = WINTER)

25. Seasons Equinox O Sun is directly above equator O Daylight hours = Nighttime hours O Occurs in March and September Solstice O When the sun reaches it’s greatest distance north or south from the equator O Summer solstice – longest daylight hours (JUNE) O Winter solstice - shortest daylight hours (December)

26. Closure: (15 minutes) O Brief Constructive Response O Explain how the interaction between the sun and Earth affects seasons here on Earth, and what happens with the sun's rays during the different seasons. Encourage them to use vocabulary terms axis, tilt, direct sunlight, and indirect sunlight in their responses