Rotating & Rotating & RevolvingRevolving

It’s Just a It’s Just a PhasePhase

Models Models Have Have

Limits!Limits!

Season Season ReasonsReasons

Earth’s Earth’s CyclesCycles

$100.00$100.00 $100.00$100.00 $100.00$100.00 $100.00$100.00 $100.00$100.00

$200.00$200.00 $200.00$200.00 $200.00$200.00 $200.00$200.00 $200.00$200.00

$300.00$300.00 $300.00$300.00 $300.00$300.00 $300.00$300.00 $300.00$300.00

$400.00$400.00 $400.00$400.00 $400.00$400.00 $400.00$400.00 $400.00$400.00

$500.00$500.00 $500.00$500.00 $500.00$500.00 $500.00$500.00 $500.00$500.00

Scoreboard

An object spinning on its axis

1.1. rotationrotation

2.2. revolutionrevolution

3.3. eclipseeclipse

4.4. tilttilt

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The amount of time it takes the Earth to complete one revolution

1.1. 24 hours24 hours

2.2. 27.3 days27.3 days

3.3. 365 ¼ days365 ¼ days

4.4. 1 month1 month

This causes us to have day and night

1.1. Earth’s rotationEarth’s rotation

2.2. Earth’s revolutionEarth’s revolution

3.3. Tilt of Earth’s axisTilt of Earth’s axis

4.4. EclipsesEclipses

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The amount of time it takes for the moon to revolve around the Earth

1.1. A dayA day

2.2. A monthA month

3.3. A yearA year

4.4. 12 hours12 hours

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The reason that we have seasons on Earth

1.1. Earth rotates on its axisEarth rotates on its axis

2.2. Earth moves closer to the Earth moves closer to the sun as it revolvessun as it revolves

3.3. Earth’s axis is tilted as it Earth’s axis is tilted as it rotates around the sunrotates around the sun

4.4. Earth’s axis is tilted as it Earth’s axis is tilted as it revolves around the sunrevolves around the sun

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The phase shown here

1.1. New moonNew moon

2.2. Quarter moonQuarter moon

3.3. Full moonFull moon

4.4. Waxing gibbousWaxing gibbous

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The direction the sun is shining from in the phase shown here1.1. Left Left

2.2. RightRight

3.3. TopTop

4.4. BottomBottom

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The phase of the moon we see depends on this

1.1. Where you are on EarthWhere you are on Earth

2.2. How much of the moon’s How much of the moon’s surface is lit by the sunsurface is lit by the sun

3.3. How much of the sunlit How much of the sunlit side of the moon faces Earthside of the moon faces Earth

4.4. Whether or not an eclipse Whether or not an eclipse is occuringis occuring

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Daily Double

The amount of the lit side of the moon you see is the same during these 2 phases1.1. New moon & full moonNew moon & full moon

2.2. Waxing crescent & Waxing crescent & waxing gibbouswaxing gibbous

3.3. First quarter & third quarterFirst quarter & third quarter

4.4. Waxing crescent & Waxing crescent & waning gibbouswaning gibbous

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The phase that occurs when the moon is directly between the Earth and sun1.1. Full moonFull moon

2.2. First quarterFirst quarter

3.3. Lunar eclipseLunar eclipse

4.4. New moonNew moon

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Definition of a model

1.1. An exact copy of a An exact copy of a scientific processscientific process

2.2. An approximate copy of An approximate copy of a scientific processa scientific process

3.3. A toyA toy

4.4. A picture A picture

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Things that aren’t entirely correct in a model are called this

1.1. PerfectPerfect

2.2. FlawsFlaws

3.3. HelpfulHelpful

4.4. LimitationsLimitations

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The reason we use models in science

1.1. They have limitationsThey have limitations2.2. They are exactThey are exact3.3. They show us how things They show us how things

work that we can’t work that we can’t normally observenormally observe

4.4. They show us how things They show us how things work that we can work that we can normally observenormally observe

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This is not a limitation of the “Moon Pop” Lab

1.1. The “Moon” did not rotateThe “Moon” did not rotate

2.2. Sizes and distances were Sizes and distances were inaccurateinaccurate

3.3. The “Earth” moved the The “Earth” moved the “Moon”“Moon”

4.4. The moon phases you saw The moon phases you saw were not accuratewere not accurate

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The greatest limitation of the seasons model seen here:

1.1. All 4 seasons are All 4 seasons are shown at onceshown at once

2.2. Size and distances Size and distances are inaccurateare inaccurate

3.3. The tilt of Earth’s The tilt of Earth’s axis is not shownaxis is not shown

4.4. The direction of the The direction of the orbit is not shownorbit is not shown

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The hemisphere receiving the most direct rays in this diagram

SUN

1.1. NorthernNorthern

2.2. SouthernSouthern

3.3. EasternEastern

4.4. WesternWestern

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When a hemisphere is receiving the most direct rays, it is also experiencing this

1.1. Most hours of sunlightMost hours of sunlight

2.2. Least hours of sunlightLeast hours of sunlight

3.3. Equal hours of sunlightEqual hours of sunlight

4.4. No sunlightNo sunlight

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This is our shortest day of the year

1.1. Summer SolsticeSummer Solstice

2.2. Autumnal EquinoxAutumnal Equinox

3.3. Winter SolsticeWinter Solstice

4.4. Vernal EquinoxVernal Equinox

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During an equinox, this hemisphere is tilted more toward the sun

1.1. NorthernNorthern

2.2. SouthernSouthern

3.3. EasternEastern

4.4. NoneNone

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The number of hours of daylight that occur on an equinox

1.1. 2424

2.2. 1212

3.3. 88

4.4. 66

The moon phase that occurs between these two phases:

1. 2.

3. 4.

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If November 21st was a first quarter moon, the approximate date of the next first quarter moon

1.1. November 28November 28thth

2.2. December 1December 1thth

3.3. December 20December 20thth

4.4. January 1January 1stst

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The day that occurs in the Northern Hemisphere at Position A1.1. Winter equinox--Winter equinox--

shortest day of the yearshortest day of the year2.2. Winter solstice—Winter solstice—

shortest day of the yearshortest day of the year3.3. Summer equinox—Summer equinox—

longest day of the yearlongest day of the year4.4. Summer solstice—Summer solstice—

longest day of the yearlongest day of the year

A

B

C

D

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The season that occurs between positions B and C

1.1. Summer Summer

2.2. Fall Fall

3.3. WinterWinter

4.4. SpringSpring

A

B

C

D

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This occurs between positions D and A1.1. rays get less direct and rays get less direct and

hours of daylight get hours of daylight get shortershorter

2.2. rays are indirect and hours rays are indirect and hours of daylight are shortof daylight are short

3.3. rays and neither direct or rays and neither direct or indirect and hours of day indirect and hours of day & night are equal& night are equal

4.4. rays get more direct and rays get more direct and hours of daylight get hours of daylight get longerlonger

A

B

C

D

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