"Composition of Rocks" Rocks and Minerals PPT Download

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"Composition of Rocks" Rocks and Minerals PPT Download

Part One: Introduction to new knowledge

beautiful granite

Granite is a rock formed by the magma deep in the earth's crust that cools and hardens before it reaches the surface as it penetrates upward along cracks in the earth's crust. So granite is a type of igneous rock.

Looking at beautiful granite, what do you notice?

Although granites come in a variety of colors, they are mainly composed of three minerals.

Quartz is a common mineral in granite, with light color and high hardness.

Quartz is a transparent or translucent, slightly round, irregular crystal with a luster like glass or grease.

Feldspar is light in color (flesh red, light yellow, off-white, etc.), translucent, with glass luster, and slightly short columnar shape.

The composition of rocks PPT, part 2: consolidation exercises

1. Granite is mainly composed of three minerals: ________, ________ and ________.

2. Minerals refer to crystalline pure substances formed _________ by geological processes. Minerals rarely exist ________ in nature, and usually several types are mixed together to form ________.

3. Quartz, feldspar and mica are _________ in nature.

4. Rocks and minerals have many applications in the world. Can you please write down examples of applications?

(1) Gypsum: ________.

(2) Graphite: ________.

(3) Diamond: ________.

(4) Platinum: ________.

(5) Limestone: ________.

The composition of rocks PPT, the third part of the content: Class summary

What did you learn in this lesson?

1. By observing granite, we learned that granite is composed of three minerals

2. I know that rocks are composed of minerals and can describe the characteristics of minerals

3. Through studying, I learned about several common minerals

4. Through studying, I learned about the functions and characteristics of common minerals

Keywords: Free download of Chinese PPT courseware for the second volume of the fourth grade of the textbook version, PPT download of the composition of rocks, PPT download of rocks and minerals, .PPT format;

For more information about the "Rocks and Minerals Composition of Rocks" PPT courseware, please click on the "Rocks and Minerals ppt Composition of Rocks ppt" tag.

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Update Time: 2024-09-26

This template belongs to science courseware Fourth Grade Science Volume 2, Textbook Edition industry PPT template

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