Earth’s StructureThe relationship between the properties of matter and the structure of the Earth.

-mass, volume, density, Earth’s interior, atmosphere

Matter has massWhat is mass?

Matter has volumeWhat is volume?

Measuring MassWhich instruments at your experiment

stations would you use to measure the mass of …

a solid?

a liquid?

A gas?

Measuring VolumeWhich instruments at your experiment

station would you use to measure the volume of……….

a regular shaped solid?

an irregular shaped solid?

a liquid?

a gas

DensityWhat is the meaning of density?

What other measurements do you need to calculate density?

What is the formula for density?What are the densities of common Earth

materials….water? air? rocks?

Density

Density is a specific property of matter.Matter can be identified by its density.Density is a comparison of a substance’s

mass compared to its volume.The formula for density is – Mass divided by

volume.Density is most commonly written as g/cm3

or g/mL.Earth’s materials layer by their densities.

Calculating densityAt your experiment station, find the density

of the three items at your station.List the mass of each item

The volume of each item

Figure the density of each item

(Make sure that you use the correct tools to calculate your answers).

Soils and StreambedsSoils and streambeds are sorted by density

and particle size. How do they sort if the settling is vertical?

How do they sort if the settling is vertical?

How do they sort if the settling is horizontal?

Sorting of Earth’s Materials

List areas on Earth where materials are sorted by density and particle size.

In what circumstances would they be sorted by particle size?

In what circumstances would they by sorted by density?

Earth’s Interior StructureWhat is the order of the densities of the

interior structure of the Earth?

How does this relate to their positioning?

Earth Interior Model Draw a picture of Earth’s interior

Describe how these layers are layered by density.

Label the four main layers of the Earth (crust, inner core, outer core, mantle)

Give the specific densities of the layers.

How can the inner and outer core be made of the same materials and yet differ in their states of matter?

Density of Earth LayersThe average densities are as follows:

Crust: 2.8 g/cm3Mantle: 3.35 g/cm3Outer Core: 11.0 g/cm3Inner Core: 14.0 g/cm3