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    This module and collection are included inLens: Siyavula: Natural Sciences (Gr. 7-9)
    By: Siyavula

    Module Review Status: In Review
    Collection Review Status: In Review

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Natural Science

Module by: Siyavula User. E-mail the author

Summary: To collect information on nutritional value in foodstuffs

NATURAL SCIENCES

Energy transfers and forces

EDUCATOR SECTION

Memorandum

1. Kilojoules.

2. Is determined by one’s mass, age and energy consumption.

3. Such a person will not have enough energy to do well, seeing that he/she has not eaten anything.

Leaner Section

Content

ACTIVITY 2: To collect information on nutritional value in foodstuffs [LO 1.2]

Collect some wrappers or packaging from foodstuffs. Study the information provided on these:

1. What is the unit of measurement for energy? ______________________________

2. How many of these units should you take in daily? _________________________

3. Try to explain why someone who is on a hunger strike should not be selected to take part in a marathon.

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

2. Where does energy come from?

We obtain almost all energy indirectly from the sun. The sun radiates heat and light and still retains enough nuclear power to continue shining for the next 5 000 million years.

Figure 1
Figure 1 (graphics1.png)

A bus or a train uses fuel to transport passengers from one point to another in the same way that a person uses the sun as a source of energy.

Fuel is the substance in which energy is contained.

Assessment

Learning Outcome 1:The learner will be able to act confidently on curiosity about natural phenomena, and to investigate relationships and solve problems in scientific, technological and environmental contexts.

Assessment Standard 1.2: We know this when the learner conducts investigations and collects data: organises and uses apparatus/equipment or sources to gain and record information.

1.2.1: tests two or more items and compares results;

1.2.2: uses a specific procedure for observations.

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'My Favorites' is a special kind of lens which you can use to bookmark modules and collections. 'My Favorites' can only be seen by you, and collections saved in 'My Favorites' can remember the last module you were on. You need an account to use 'My Favorites'.

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Definition of a lens

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.

What is in a lens?

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.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

| External bookmarks

Module to:

My Favorites (?)

'My Favorites' is a special kind of lens which you can use to bookmark modules and collections. 'My Favorites' can only be seen by you, and collections saved in 'My Favorites' can remember the last module you were on. You need an account to use 'My Favorites'.

| A lens I own (?)

Definition of a lens

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.

What is in a lens?

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.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

| External bookmarks