Earth's Rotation

Unit 5.2 Day Four

Pgs 299-302

Why do you think the time of day is different in each place?

Do the Math: Daylight

• Look at the graph. It is showing the time between sunrise and sunset over and area for a week.

• What patterns do you see?

• What do you think next Monday's time will be?

History of Telling Time

Do you know that ancient people kept track of time using shadows cast by the sun? Let's look at some images to see how technology engineered to tell time has improved throughout history.

Multiple Choice

What disadvantage does a sundial have?

• In cannot work during the night

• It cannot be used to track the hours of the day

• It uses costly materials and is difficult to build.

How the World Turns

• Look at the two images.

• The person represents your position in space at the given time.

• As Earth rotates, your view changes.

Multiple Choice

Earth's ________ causes the sun to appear to rise in the east in the morning, move across the sky, and set in the west in the late afternoon.

• rotation

• be still

• move

• shape

Multiple Choice

Earth's movement also causes the stars to appear to _____ from east to west each night.

• be still

• move

• day

• sun

Multiple Choice

In addition, this movement of the sun causes _____ and night.

• rotation

• moon

• shape

• day

Open Ended

How do day and night occur? Use complete sentences.