Earth Science Review 4 (The Shape of the Earth)

The shape of the Earth is an ____, because it has a ____ around the equator and the poles are a little ____ .

(a)  

Because of the shape of the Earth, objects weigh slightly less at the equator than they would if they were at the poles instead.

• true

• false

If the Earth were not moving, it would be a perfect sphere.

• true

• false

Because of the shape of the Earth, the circumference of the Earth that rules around the equator is slightly larger than the circumference of the Earth from pole to pole.

• true

• false

What evidence did early scientists use to suggest that the Earth is a sphere?

• the Earth casting a circular shadow during lunar eclipses

• seasons occurring differently around the world

• ships seeming to sink down and disappear at the horizon

• constellations appearing in different parts of the sky

Scientists describe the Earth as a Closed System, because it only allows which two things to enter and exit its boundaries?

• heat

• energy

• matter

The four spheres of the Earth are...

(a)  

List the materials in order of least to greatest to tell how much of each material makes up the Earth's atmosphere.

oxygen, water vapor and other gases, nitrogen

(a)  

What three jobs does the atmosphere do?

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

List the layers of the atmosphere in order from closest to the Earth's surface to furthest from the surface.

mesosphere, exosphere, thermosphere, stratosphere, troposphere

(a)