1000

1

50001000

200

10

A dollar can be divided into units of 10, just as meter can.

Meter

Liter

KilometerMeter/centimeter

Degree CelciusMilligram

Gramsecond

The Spheres of Earth

• The Atmosphere

• The Lithosphere

• The Hydrosphere

• The Biosphere

The Spheres of Earth• When viewed from near, you can see that

Earth is surrounded by a thin gas layer swirling with clouds. This represents one Sphere of Earth – the Atmosphere.

• The three Spheres of Earth which allow for life are:– ___________– ___________– ___________

The Spheres of Earth• Unlike the Moon, ___________

– Why is Earth’s gravity more than the Moon’s?

The Atmosphere• ___________

• It is made of about 78% nitrogen gas (N2), 21% oxygen gas (O2) and the remaining 1% is argon, water vapour, CO2, etc.

The Atmosphere

• Is critical to life on Earth

• It acts like a blanket

providing us with moderate

temperatures, protecting

us from solar radiation,

and ultraviolet light

• ___________

The Lithosphere

• Is the rocky outer shell of Earth containing the rocks and minerals that make up mountains, ocean floors and the land

• ___________

The Hydrosphere

• ___________

• Includes all oceans, lakes, ice, groundwater, and clouds

The Biosphere• Describes the locations in which life can

exist within the lithosphere, atmosphere and hydrosphere including several kilometers below the Earth’s surface

http://www.teachwithfergy.com/bill-nye-the-science-guy-the-atmosphere/

The tube with dry paper at both ends

There was no moisture to avoid in that tube.

There was no moisture to avoid in that tube.