Day 3: Layers of the Earth




Part 1 (20 minutes) Watch video: "Digging a hole to the center of the Earth" An irresistible account of a child’s imaginary 8,000-mile journey through the earth to discover what’s inside. Facts about the composition of the earth are conveyed painlessly and memorably. The illustrations are bright and fun.

"Find a soft place. Take a shovel and start to dig a hole. So begins your trip through the center of the earth. You will have to dig about 8,000 miles to get to the other side of the world, and you'll need the latest equipment. As you dig, you may find fossils, or diamonds and emeralds, or even stroke oil. There will be problems, too - underground geysers and volcanoes and white-hot heat. But what a wild adventure!"

This video is also a print book.

Part 2 (55 minutes) Students create a 3-D model of Earth, label layers and characteristics of layers.

Have the following materials, in addition to either a text book or on line information related to Earth layers, available:

1. scissors, glue, markers, color pencils, crayons, magazines for cut and past


2. Copy and distribute TAEMB (The Amazing Earth Model Book Easy-to-make Hands-on Model That Teach, Donald M Silver; Patricia Wynne. New York: Scholastic Professional Books, 1997) pages 11 – 14


3. Provide students with the 3-D model scoring guide (located at the end of this section)

OR

Challenge students to create a paper model of Earth that shows its layers. The following website has many many free templates for this activity. You will use this site often during this unit so be sure to bookmark it as a favorite. Let's Book It with tech'knowledge'y http://www.vickiblackwell.com/makingbooks/


4. Encourage learners to tap into their creative nature as they build and construct the 3-D model. Some may choose to cut and paste vivid colors from magazine pages to create the layers. Others may choose color pencils, crayons or markers.


5. Work with students to add critical information using the scoring guide. Identify the layers of the Earth.


6. This work sample could be included in the final pop-up book as an evidence of learning. Or learners might choose to use this as a starting point for another more comprehensive inside earth model.
Scoring Guide - 3-D Model - Identify the layers of the Earth

AdvancedProficient
Developing
Emerging
• Illustrates the layers of the Earth with appropriate labels and units of measurement• Describes the characteristics of each layer: temperature, thickness, composition, etc.• Describes how the characteristics may fluctuate throughout the layer• Illustrates the layers of the Earth with appropriate labels• Describes the characteristics of each layer: temperature, thickness, composition,
• Illustrates the layers of the Earth with appropriate labels• Describes some characteristics of each layer: temperature, thickness, composition,
Labels the layers of the Earth on a diagram• Describes an interesting characteristic of each layer
If needed, allow time in another class period to complete the 3-D Earth model project. It takes about 55 minutes from onset to completion.
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