"Crystals under a Magnifying Glass" Tiny World PPT Courseware 2

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"Crystals under a Magnifying Glass" Tiny World PPT Courseware 2

Most solid substances in nature are crystals or consist of crystals.

A solid with a certain regular geometric shape is called a crystal.

Crystals come in many shapes, but they are all regular.

Some are cubes, some are like pyramids, and some are like clusters of needles...

Basic characteristics of crystals: regular, geometric shape, solid

Which of the following substances do you think are crystals?

Glass, ice, pearls, snowflakes, salt, sugar, MSG...

Key points to review:

A Crystal: Some solid substances have a certain structure inside. If the particles that make up these substances are arranged in a certain spatial order to form a regular geometric shape, this is a crystal.

BMost solid substances in nature are crystals or composed of crystals.

C crystal production

D Several common crystals

1. Fill in the blanks

1. The particles of ( ), ( ), ( ), and ( ) are all regular ( ) solids. People call such solid substances ( ).

2. Most solid substances in nature are ( ) or are composed of ( ). There are many shapes of crystals, but they all have ( ). Some are ( ), some are like ( ), and some are like clusters of ( ).

3. Many rocks are made up of ( ). Under the microscope, granite is composed of mineral crystals such as ( ), ( ), ( ), and so on.

4. There are many shapes of crystals, but they all have ( ). The methods of making crystals are ( ), ( ).

judge

1. Most solid substances in nature are crystals or composed of crystals. ( )

2. Glass, amber and pearls are all crystals. ( )

3. Crystals in nature have certain rules. ( )

4. Some crystals are very large, and some crystals are very small. ( )

5. There are three types of crystals in granite: feldspar, mica, and quartz. ( )

6. Only with the help of magnifying glasses and microscopes can we see crystals. ( )

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For more information about the PPT courseware "Crystals under a Magnifying Glass in a Tiny World", please click on the Crystals under a Magnifying Glass in Tiny World PPT tab.

"Crystals under a Magnifying Glass" Micro World PPT teaching courseware:

"Crystals under a Magnifying Glass" Micro World PPT Teaching Courseware Part One: Exploring New Knowledge (1) Use a magnifying glass to observe beautiful crystals. Salt crystals under a magnifying glass. Sugar crystals under a magnifying glass. They are all cubes. MSG crystals under a magnifying glass..

"Crystals under a Magnifying Glass" Tiny World PPT Download:

"Crystals under a Magnifying Glass" Micro World PPT Download Part One: Observing Beautiful Crystals Observe salt, sugar, alkali noodles, and MSG particles with the naked eye. What do they look like? Using a magnifying glass to observe them, what surprising discoveries do we make? I..

"Crystals under a Magnifying Glass" Tiny World PPT:

"Crystals under a Magnifying Glass" Tiny World PPT Part One Content: Beautiful Crystals We not only have the wonderful world of insects around us, but also a wide variety of material worlds. Have we paid attention to the structure of various substances? If you look at yourself with a magnifying glass...

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Update Time: 2024-06-25

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 2 industry PPT template

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