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Unit D Assessment

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Course: Chemistry 20 SS
Book: Unit D Assessment
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Date: Thursday, 18 September 2025, 11:46 AM

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1. Unit D Assessment

Assessment

Unit D Assessment

Return to the Moon and Stoichiometric Relationships

 

During your study in this unit you learned how a knowledge of stoichiometry has been essential to many chemical processes. You learned that stoichiometric relationships must be considered when launching rockets and when designing and using the life-support systems aboard the Apollo and other spacecraft.

 

Recently there has been renewed interest in returning to the Moon. What are the reasons for renewed exploration of the Moon? How do these reasons relate to issues involving chemical quantities and stoichiometric relationships?

 

Use the Internet and other resources to research plans to return to the Moon. Use search terms such as “moon base” and “lunar exploration.”

 

Prepare a presentation that describes one aspect of activities that will occur as a result of our return to the Moon. In your presentation you will need to identify and explain how this activity is dependent upon a knowledge of stoichiometric relationships between the matter involved in the process. 

 

In your presentation be sure to highlight the following:

  • the chemical substances involved

  • the purpose of the chemical process

  • stoichiometric relationships between matter

  • whether the situation involves a limiting reagent, and how this influences the process

  • what technology is associated with the process

  • a bibliography of references used in the preparation of your presentation

Develop your presentation in the form of a podcast, vodcast, slide presentation, or other medium to convey your understanding of how stoichiometry is an essential principle involved with planned activity on the Moon.

 

Consult the scoring guide shown below as you research and develop your presentation.

 

Submit your presentation to your teacher and place a copy into the discussion area for your class. Review the presentations made by other students when they are posted. Is the range of activities being presented wide or narrow? What does the extent of the range tell you about the information surrounding our return to the Moon?

 

Score

Criteria

5

Excellent

The student demonstrates an excellent understanding of all the components of the question and fully and correctly supports those components.


Statements made in the response are organized, unambiguous, and supported explicitly, but may contain a minor error or have minor omissions.

4

Good

The student demonstrates a good understanding of all the components of the question and fully and adequately supports those components.


Statements made in the response are unambiguous, mostly complete, mostly correct, but may contain errors.

3

Satisfactory

The student demonstrates a basic understanding of the components of the question.


Statements made in the response may be disorganized, ambiguous, and incomplete, and may lack support.

2

Limited

The student demonstrates a limited understanding of the components of the question.


Statements made in the response lack details, clarity, and support.

1

Poor

The student provides a solution that contains a relevant statement that begins to answer the question.

0

Insufficient

The response is incorrect and/or totally off topic.

Communication Component


Ensure that the following aspects are evident in the response:

  • The student produces a clear, unambiguous answer.

  • The response includes appropriate scientific conventions such as units, significant digits, and states.

  • The response demonstrates good organizational skills and is presented in a logical manner.