7thgrade ch 1sec 1earthsinterior 100824072355 phpapp01

8/10/2019 7thgrade Ch 1sec 1earthsinterior 100824072355 Phpapp01

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Ch. 1

Sec. 1 Earths Interior


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Canister Observations1

2

3

Activity pg. 6 - How do Scientists Find Out

Whats Inside Earth?

1.Without opening the canisters, what differences

do you notice between them?2.Apart from their appearance on the outside, are

the canisters similar in any way?

3.How did you obtain this evidence?


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1. direct evidence

from rock

samples2. indirect

evidence fromseismic waves-

earthquakes

geologists use 2 types of evidence

to learn about Earths interior


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3 main

layers

of Earths

interior

crust mantle core-1. inner core2. outer core

Layers of Earth
http://www.youtube.com/watch?v=3xLiOFjemWQhttp://www.youtube.com/watch?v=3xLiOFjemWQ


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The crust is a layer of

solid rock that

includes both dryland and the ocean

floor.

The Crust


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crust

layer of rock forms Earths outer skin

t
http://www.physicalgeography.net/physgeoglos/r.htmlhttp://www.physicalgeography.net/physgeoglos/r.html


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crust 2 types of crust:

1. oceanic crust

made of basalt-

dark rock w/ finetexture

2. continental crust

made of granite-

rock w/ light color

& coarse texture
http://www.physicalgeography.net/physgeoglos/o.htmlhttp://www.physicalgeography.net/physgeoglos/o.html


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Earths mantle is made up of rock that is very

hot, but solid. Scientists divide the mantle into

layers based on the physical characteristics of

those layers.The Mantle


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mantle

layer of hot solid rock

from base of crust

3,000 km deep
http://www.physicalgeography.net/physgeoglos/r.htmlhttp://www.physicalgeography.net/physgeoglos/c.htmlhttp://www.physicalgeography.net/physgeoglos/c.htmlhttp://www.physicalgeography.net/physgeoglos/r.html


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2 parts of mantle:

1. lithosphere=

rigid layer of uppermost part ofmantle & crust

floats on top of 2. asthenosphere

soft layerthat flows


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core 2 parts:

1. inner core- solid

2. outer core- liquid

currents in liquidouter core force

solid inner core tospinproduces

Earths magnetic

field


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made of iron & nickel

core


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Creating Data Tables pg. 11

Depth Name of

Layer

What Layer

Is Made Of

20 km150 km

2,000 km4,000 km

6,000 km


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How to make a model of the

1. In a Ziploc bag, combine 1/2 cup (1 bottle) ofglue and 1/2 cup of warm water.

2. Add a few drops of food coloring to tint the

mixture to the desired shade.

3. In a second Ziploc bag, combine 1 teaspoon of

Borax and 1/2 cup of water. Mix thoroughly.

4. Pour the Borax mixture into the glue mixture. It

will be very thick.

5. Knead slightly as the mixture starts to come

together. ASTHENOSPHERE-SOFT LAYER OF THE MANTLE ON

WHICH THE LITHOSPHERE FLOATS


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Edible Earth

Write a description

of each layer of

Earth.

Crust= graham crackers

Mantle= black cherry Jello

Outer core= peach JelloInner core= raspberry Jello


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Write a story about a journey to the center of Earth.

Directions are on pg. 13 in your textbook.

1-2 written pages + 1 page with a picture Have a beginning, middle and end to your story

You must include at least 3 facts for each main

layer (composition, depth, thickness, how thelayers are separated into different layers,etc.)


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Activity: Core

of the Matter

Build a 3-D model of the planets to depict the interiorsof each. Punch a hole in a paper plate and spin it on aphonographic record player at 77 rpm. With differentcolored markers, draw the layers of the planet tocorrespond in scale to the planets interior. Forexample, for a simplified earth draw to scale a core, a

mantle, and a crust. Repeat this on both sides of threeplates. (On some turntables, an upside down plate willoverride the rotating section. To get a plate to spinupside down, first place a spare plate right-side-up onthe player, then place the upside down plate on that.)

Cut and combine the plates so the three of themintersect perpendicular to each other on an X-, a Y-,and a Z-axis. To do this, cut a slit halfway across twoplates and intertwine them. Cut a third plate in half.On each half cut a slit from the cut edge (what wasformerly the center of the plate) halfway outward. Cutpartial slits on the combined plates to accommodatethe two halves Hang and shabang
http://analyzer.depaul.edu/paperplate/images/Core_matter_separated.jpghttp://analyzer.depaul.edu/paperplate/images/Core_matter_separated.jpghttp://analyzer.depaul.edu/paperplate/images/Core_matter_separated.jpghttp://analyzer.depaul.edu/paperplate/images/Core_matter_separated.jpghttp://analyzer.depaul.edu/paperplate/images/Core_matter_separated.jpg

7thgrade ch 1sec 1earthsinterior 100824072355 phpapp01

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