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Day &Night

Seasons MoonScale

DistanceShadowCaster

What motion of the Earth

causes day and night?

Rotation.http://upload.wikimedia.org/wikipedia/com

mons/2/2c/Rotating_earth_(large).gif

In what direction does the Earth spin?

East.North

South

East

http://netanimations.net/animated_earth_84.gif

How long is one Earth rotation?

One day.(24 hours)

12

9 3

6

In what direction is the

Sunat noon?

To the south.

East West

North

What causes night?

We are in the shadow of the

Earth.Sunlight

Day

Shadow

Night

http://www.nec.com/global/solutions/space/satellite_systems/img/kaguya002.jpg

What motion of the Earth causes

seasons?

Revolution.(orbiting)

http://rst.gsfc.nasa.gov/Sect16/full-20earth2.jpg

How long is one Earth orbit?

One year.

http://www.all-calendar.tk/wp-content/uploads/printable-year-calendar-1.jpg

Is the axisof the Earthstraight up

compared tothe axis of the Sun?

No. The axis of the Earth is titled

compared to the axis of the Sun.

http://rst.gsfc.nasa.gov/Sect16/full-20earth2.jpg

We used globesto study seasons.

AxisNorwood(Pin)

DayNight

What season isshown on the globe?

Sunlight

Winter.

Sunlight

When is the Earth closest to the Sun?

In the winter.But, just by the smallest amount.

What phase is this?

http://apod.nasa.gov/apod/image/9904/fullmoon_lick_big.jpg

Full.

What phase is this?

Third Quarter.

What phase is this?

First Quarter.

Today there is aFirst Quarter Moon.

When was the lastFirst Quarter Moon?

About four weeks.

About a moonth.

Today there is aFirst Quarter Moon.

When is the nextThird Quarter Moon?

About two weeks.

About a half moonth.

What is the distance from the Sun to the

Earth called?

One Astronomical Unit.

1 A.U.

http://ion.uwinnipeg.ca/~vincent/4500.6-001/Cosmology/planets_inner_orbiting_sun_sm_images.gif

Imagine 1 A.U. is 1 foot on our model.

How far would themodel Sun be fromthe model Earth?

1 foot away.

How far would themodel Sun be fromthe model Jupiter?

Jupiter is 5 A.U.from the Sun.

5 feet away.

Mercury is 1/2 A.U.from the Sun.

How far would themodel Sun be fromthe model Mercury?

Half a foot.

A.K.A 6 inches.

How many A.U.to Pluto?

About 40 A.U.

Pluto

Earth

Sun

Where does theSun rise?

Towards the East.

http://t3.gstatic.com/images?q=tbn:ANd9GcRA0V3WadrRjY0evt7czYVSpa0jwlQ2KF7ffY-naiG5CUYeHHZHqlRdwFpP

What time is itwhen the Sun

is to your south?

Noon.

At what time of day is your

shortest shadow?

Noon.

East West

North

It is almost sunset.

In what direction does your shadow point?

Sun sets to the West,your shadow points

to the East.

Mr. Haffey islooking Northwest,

facing the Sun.

His shadow points in which direction?

Southeast.