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Do Now- The Earth’s Motion and Seasons, pg 178

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1 Do Now- The Earth’s Motion and Seasons, pg 178
___ is a complete trip of the Earth around the Sun. This takes the Earth ____ (timeframe: hours, days, years) and is in an ___ pattern. ___ is a complete turn of the Earth on its axis from west to east. This takes the Earth ___ . (timeframe)

2 Revolution ___ is a complete trip of the Earth around the Sun. This takes the Earth ____ (time) and is in an ___ pattern. 365 days elliptical

3 is a complete turn of the Earth on its axis from west to east.
2. Rotation ___ Skip 2 lines This takes the Earth ___ (time) to rotate. 24 hours

4 4. Has more mass when they are closer together 5
4. Has more mass when they are closer together 5. The Sun has more mass therefore it makes the Earth revolves. B. The Earth has more mass therefore it makes the Moon revolves. 8. axis

5 hours 11. Seasonal change 13. Elliptical orbit, winter, summer 14. distance from the Sun b. the tilt 15. east, west

6 20. The north star gives us more daylight hours and tilting of the Earth gives some areas more Sun 21. the area of the tilt gets more Sun.

7 1. At the northern hemisphere, which season is taking place. 2
1. At the northern hemisphere, which season is taking place? 2. At the southern hemisphere?

8 3. At the northern hemisphere, what month is taking place. 4
3. At the northern hemisphere, what month is taking place? 4. At the southern hemisphere?

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10 Earth’s Motion and Seasons #15

11 Tilt of the Earth 1. Label the arrows on the map. 2. Color the map. 3
Tilt of the Earth 1. Label the arrows on the map. 2. Color the map. 3. Draw a line from North to South Pole and label its distance in kilometers. 4. Label the distance of the equator in kilometers. 5. Draw a line 0.5 mm above the equator and label that line Tropic of Cancer. 6. Draw a line 0.5 mm below the equator and label that line Tropic of Capricorn. 7. Cut and paste the map. Do not cut out your labels. 8. After pasting it, draw an arrow from West to East below the map on the background paper. 9. Draw and color a Sun, either to the left or right side. 10. Title it, “___(season) in the Northern Hemisphere.

12 Draw this diagram that represents the Northern Hemisphere.

13 Do Now solstice ___ = the Sun’s rays shine at the Tropic of Cancer/ Capricorn. Summer solstice is the ___ day of the year while the winter solstice is the ___ day of the year. ___ = the Sun’s rays shine directly at the equator. ___ and ___ equinox = the length of day and night are both equal. longest shortest equinox Fall spring

14 Activity- Earth’s tilt

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20 Do Now- numbers and directions you need to know
The Earth rotates from ___ to ___ (compass direction) , giving us ___ (timeframe) of day and night. This means that ___ in the east and ___ in the west. The Earth revolves ___ (direction) around the Sun in an elliptical shape for ___ (timeframe) . west east 24 hours sunrises sunsets counterclockwise 365 days

21 Do Now- numbers and directions you need to know
4. The ___ goes through the Earth from the North to South Pole. 5. Earth tilts at 23.5 degrees, giving us ___ seasons. 6. Moon ___ around the Earth for 28 days. axis four revolves

22 The Seasons in the Northern Hemisphere opposite of page 183, figure 6

23 Do Now North ern summer fall June 21/22 Sept 21/22 winter Dec 21/22
Hemisphere Solstice date Equinox North ern summer fall June 21/22 Sept 21/22 winter Dec 21/22 spring Mar 21/22 June 21/22 winter spring Sept 21/22 Southern Dec 21/22 Mar 21/22

24 Gizmo: Earth, Moon and Sun- pg 3
X21 X4X X2X X8X

25 Do Now- video clips 1. The Sun’s rays light more at the ___ Hemisphere, which is closer to the Sun, giving us ___ heat. 2. Therefore in the Southern Hemisphere, ___ solstice has arrived. 3. In June, the Sun’s rays are shining towards the Tropic of ___, giving ___ solstice in the Northern Hemisphere. 4. The ___ of the Earth can give the poles 24 hours of daylight for 6 months.

26 1. The Sun’s rays light more at the ___ Hemisphere, which is closer to the Sun, giving us ___ heat. 2. Therefore in the Southern Hemisphere, ___ solstice has arrived. Southern more summer Play youtube video Earth’s Tilt 1 (5 min)

27 3. In June, the Sun’s rays are shining towards the Tropic of ___ , giving ___ solstice in the Northern Hemisphere. 4. The ___ of the Earth can give the poles 24 hours of daylight for 6 months. Capricorn winter tilt Youtube, Earth’s Tilt 2 (6 min)

28 Do Now- The Earth’s Moon, pg 184-192
How does the moon’s appearance change during a month? 2. How might the tides affect the way this boat is tied? Look at picture 3. What do you think causes the tides? Look at picture It appears to have different shapes as it goes through phases.

29 2. How might the tides affect the way this boat is tied?
More water, the tighter the rope; less water, the looser the rope.

30 3. What do you think causes the tides?
The moon’s gravitational pull.

31 Do Now 1. ___ is the amount of matter in a given amount of space. 2. The moon has the same density of the first two layers of the ___. 3. Density ( ) = mass ( ) volume ( ) 4. density of water = 5. Float = less dense, ___= more dense

32 Do Now 1. On Earth, the sun’s rays are absorbed from different amounts by various factors: a) colors- Black absorbs all wavelengths of light and ___ none. While white reflects all wavelengths of light and therefore absorbs the least heat. b) solid- It takes ___ thermal energy to heat solids as the molecules are condensed. c) liquids- TE gets ___ absorbed since liquids need to be evaporated first. But liquids stay heated longer due to the H+ and O- charges. reflects less Act- Heating/ Cooling of Sand and Water slowly

33 Do Now 1. Which will boil pasta faster, using 1 cup or 2 cups of water
Do Now 1. Which will boil pasta faster, using 1 cup or 2 cups of water? Explain. 1 cup. Since there is less water, the evaporation rate will be quicker. Recap: Solids versus Liquids Dark colors versus Light colors

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36 In the water (bottom half of the bottle)
Cloudy High Warm In the water (bottom half of the bottle) The high pressure forces the air molecules to move downward Evaporation

37 Do Now 1. ___ is the amount of matter in a given amount of space. 2
Do Now 1. ___ is the amount of matter in a given amount of space. 2. The moon has the same density of the first two layers of the ___ Density ( ) = mass ( ) volume ( ) 4. density of water = 5. Float = less dense, ___ = more dense density Earth g/ml grams ml 1 g/ml sink

38 Do Now List the colors in order of density.
Float density is ___ than water 1. ___ 2. ___ 3. ___ Sinks density is ___ than water less yellow blue red greater

39 Do Now dark 1. Marias which are ___ colored were formed by lava flows.
2. The light colored lunar highlands are ___ lunar surfaces. 3. Circular depressions are ___ formed by meteorites striking the Moon’s surface. 4. Identify A through F by using the words MARIA, LUNAR HIGHLAND, And CRATER. elevated craters

40 D A E B F C

41 A = crater B = maria C = lunar highland D = crater E = lunar highland F = maria

42 Do Now 1. We only see one side of the moon because the two motions of ___ and ___ take the same time which is ___ days. Video clip 2. Describe new moon. The moon is between the sun and earth, so ___ moon is seen. 3. Describe full moon. Earth is between the sun and moon so ___ % of the lit moon can be seen.

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44 1. We only see one side of the moon because the two motions of ___ and ___ take the same time which is ___ days. 2. Describe new moon. The moon is between the sun and earth, so ___ moon is seen. 3. Describe full moon. Earth is between the sun and moon so ___% of the lit moon can be seen. Video clip revolution rotation 27.3

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46 2. Describe new moon. The moon is between the sun and earth, so ___ moon is seen. 3. Describe full moon. Earth is between the sun and moon so ___% of the lit moon can be seen. no 100

47 Enchantedlearning.com diagram
Accompany worksheet w the same heading

48 Do Now Draw a New Moon: You can not see any of the New Moon because the lighted half of the Moon is facing the Sun at ___ . Draw a Waxing Crescent: Draw a First Quarter: This occurs at ___ noon Can use textbook diagram pg 187 sunset

49 Do Now 6. Draw a Waxing Gibbous. 7. Draw a Full Moon.
8. A Full Moon occurs at ___ . 9. Draw a Waning Gibbous. 10. Draw a Third Quarter. 11. A Third Quarter occurs at ___. 12. Draw a Waning Crescent. midnight sunrise

50 Do Now- 1. Which moon phase did you see last night?
Answer: Waxing Gibbous

51 2. Identify the eight phases of the moon, given the Sun is shining on the right side.
B G C

52 Phases of the moon where the Sun shines on the right side
A = First Quarter B = Waning Gibbous C = Waning Crescent D = Waxing Crescent E = Waxing Gibbous F = Full Moon G = Third Quarter Not pictured is: New Moon

53 Do Now Draw the Sun and the eight moons revolving the Earth. Shade in the eight semi circled moons correctly. Label each phase of the moon. Do Now

54 Answers Third Quarter Waning Gibbous Waning Crescent New Moon
Full Moon Waxing Crescent Waxing Gibbous First Quarter

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57 Do Now 3. Identify the eight phases of the moon, given the Sun is shining on the left side.
B G C

58 Phases of the moon where the Sun shines on the left side
A = Third Quarter B = Waxing Gibbous C = Waxing Crescent D = Waning Crescent E = Waning Gibbous F = Full Moon G = First Quarter Not pictured is: New Moon

59 Study Guide 1. Earth has a spherical ___. 2. Earth ___ the sun in an elliptical shape. 3. The sun shines at the equator= a?, seasons?

60 Review 4. The sun shines at the Tropic of Cancer= a?, season in northern hemisphere? 5. The sun shines at the Tropic of Capricorn= a?, season in the northern hemisphere? 6. Gravity depends on: a?, b?

61 Review 7. The axis makes the Earth ___for 24 hours and gives the Earth its ___. 8. The moon rotates for ___ days. 9. The moon revolves for ___ days. 10. The ___ revolves around the Earth as the ___ revolves around the Sun.

62 Review 11. The three main features of the moon: 12. If it is summer in the northern hemisphere, then it must be ___ in the southern hemisphere. 13. Name the month that autumn equinox starts. 14. The rotation of the Earth means we get 24 hours of ___ and ___.

63 Review 15. The tilting of the Earth gives us ___. 16. The Earth rotates in a ___ direction. 17. The moon rotates in a ___ direction. 18. What is the next phase after first quarter moon?

64 Review E(1) E(L) S E(R) E(2) northern hemisphere 19. Which season is E1? 21. E2? 22. E3?

65 Review 23. ___ (phase) = moon is between the Sun and Earth. 24. Waxing crescent and waxing gibbous means ___. 25. Draw a waxing crescent moon. 26. Draw a waning gibbous moon.

66 Answer Key 1. Shape 2. Revolves 3a. Equinox, b. spring/fever 4a
Answer Key 1. Shape 2. Revolves 3a. Equinox, b. spring/fever 4a. Solstice, b. summer 5a. Solstice, b. winter 6. mass, distance 7. rotates, tilt moon, Earth

67 Answer key 11. maria, lunar highlands, craters 12. winter 13
Answer key 11. maria, lunar highlands, craters 12. winter 13. september 14. day, night 15. seasons 16. counterclockwise 17. CCW 18. waxing gibbous

68 Answer Key 19. E1- winter 21. E2- summer 22. E3- fall 23. new moon 24
Answer Key 19. E1- winter 21. E2- summer 22. E3- fall 23. new moon 24. lit part of the moon is getting bigger

69 Do Now Identify the three main parts of the moon.
Identify the three main parts of the moon. We can't see the other side of the Moon because the Moon rotates in the same amount of time it takes to ___ the Earth; thus, it keeps the same side toward us at all times. This is due to a phenomenon called "tidal ___ “. 4. Basically, over a very long period of time, the Earth's ___ has slowed the Moon's rotation to the point where it takes about the same amount of time to rotate as it does to orbit the Earth.

70 Do Now orbit dissipation”. gravity
Identify the three main parts of the moon. We can't see the other side of the Moon because the Moon rotates in the same amount of time it takes to ___ the Earth; thus, it keeps the same side toward us at all times. This is due to a phenomenon called "tidal ___ 4. Basically, over a very long period of time, the Earth's ___ has slowed the Moon's rotation to the point where it takes about the same amount of time to rotate as it does to orbit the Earth. orbit dissipation”. gravity

71 Do Now Four hypotheses on the formation of the moon.
Fission hypothesis- a rapidly spinning Earth splits into two. The smaller rock being the ___. Co-formation hypothesis- the Earth and moon form at the ___ time. Capture hypothesis- the Earth’s ___ captures the moon into its orbit. Collision hypothesis- a Mars sized rock ___ with Earth. The smashed pieces form the moon. moon same gravity collides

72 The Collisional Ejection Theory
The Collisional Ejection Theory Currently, the theory that best explains all the evidence is the collisional ejection theory. This theory holds that the Moon formed from debris ejected from the Earth when a large object (the size of Mars) crashed into the Earth. The energy from such a collision produces a stream of vaporized rock from the impact. The Moon forms from this cooled material. This theory explains many of the known properties of the Moon's orbit and composition. The ejected material would have coalesced in or near the ecliptic plane, putting the Moon into an orbit much like the one it has. The Moon, which is believed to have a small iron core, could have retained this core through the collision. Also, this collision could have tipped the Earth's axis, causing the seasons we now know. An illustration of a chicxulub impact

73 The Capture Theory Many of the moons around other planets are really captured asteroids and not objects that formed in place with the mother planet, or were ejected by the mother planet. One hint is the shape. If a moon is shaped irregularly (more like a potato than round like the Earth's Moon) it is a good sign that a moon is really a captured asteroid. Phobos and Deimos of Mars look like this. Another good sign that a moon may be captured is if it orbits in a direction opposite to that of the mother planet. An example of a moon of this kind is Neptune's moon Triton. The Earth's Moon is both rounded in shape and orbits with Earth. These are the best clues that the Moon is not captured. If the Moon were captured it would explain why the Moon and the Earth do not appear to be made of the same kinds of rock. Small moons of Saturn

74 The Co-Formation Theory
The co-formation theory explains the origin of the moon as an object which formed out of the initial cloud of gas and dust at the same time and roughly the same place as the Earth. As shown in this picture, while they were forming in the solar nebula, the beginning of the moons-to-be (called protomoons) drew material to themselves from the cloud of gas and dust around them. Because the proto-moon was so close to the proto-earth the gas out of which they both formed ought to be very similar, composed mostly of something which would form rock. The co-formation theory explains why the moon appears in the location it does but it does not explain the evidence that the Earth and Moon do not appear to be made of the same stuff. An illustration of how forming moons drew gas to themselves

75 Full Moon Do Now 1. In a lunar eclipse occurs at a ___ , where the Earth is between the ___ . 2. This is where the moon moves into the darkest part of the Earth’s ___. Sun and moon. shadow

76 New Moon 3. A solar eclipse occurs at ___ , where the moon blocks sunlight from reaching part of the Earth’s surface.

77 Lunar eclipse Solar eclipse

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79 (A) Darken Area (E) Round Indentions

80 #5, #10: Identify the phase of the moon when the Sun is shining on the right side.
X X E F B X C

81 (G) (D)


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