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To explain the three basic forms of matter in terms of particle theory

Module by: Siyavula Uploaders. E-mail the author

NATURAL SCIENCES

Matter, measuring and reactions

EDUCATOR SECTION

Memorandum

Assignment 3:

Basic forms of matter

Table 1
SOLIDS LIQUIDS GASSES
Iron Water Carbon dioxide
Wood Tea Oxygen
Plastic Wine Nitrogen
Steel Milk Carbon monoxide
Copper Soft drink Sodium
Paper Brandy Iron oxide
Coal Petrol Ammonia
Gold Oil Methane
Cotton Handy Andy Helium
Wool Honey  
Cheese Yoghurt  

LEANER SECTION

Content

Activity: To explain the three basic forms of matter in terms of particle theory [LO 2.2]

  • SOLID SUBSTANCES
  • LIQUIDS
  • GASES

The particles in a solid substance remain in place and move very little. They vibrate in a fixed position. This is why solids have a fixed shape and volume. The particles form a regular pattern.

Figure 1
Figure 1 (graphics1.png)

In liquids, the particles are able to move freely, but they cannot go far from one another. They do not have a fixed pattern and can therefore take the form of the container in which they are. As the particles are unable to move far from one another, the volume cannot really change.

Figure 2
Figure 2 (graphics2.png)

The particles of a gas can more or less move to any place. These particles are also much further apart than the particles in a liquid or a solid substance.

Figure 3
Figure 3 (graphics3.png)

ASSIGNMENT 3

See whether you are able to complete the following columns by listing examples of substances that represent the three forms of matter.

Table 2
Solid substances Liquid substances Gases
Iron Water Carbon dioxide
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________

Assessment

Learning Outcome 2: The learner will know and be able to interpret and apply scientific, technological and environmental knowledge.

Assessment Standard 2.2: We know this when the learner categorises information.

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Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

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Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

Who can create a lens?

Any individual member, a community, or a respected organization.

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