Waseley Hills High School
BTEC Level 1/2 First Award in Principles of Applied Science
Unit 2: Chemistry and Our Earth
Name:
Start Date:
Interim deadline:
Related Unit content:
Learning aim B: Investigate
Deadline Date:
how the uses of chemical substances depend on their chemical and
physical properties.
Assignment B Useful Chemical Products
Scenario
You work as a junior laboratory technician at a chemical products company specialising in supplying
materials on a large scale. Your company has just won a major contract to supply a local construction
plant with all of its chemical products for its equipment and other uses. As part of the contract, the
construction plant managers have asked for technical information about the chemical substances to be
supplied and are looking for advice on which chemical substance they should use for the construction
of a new mining-drill head.
Task 1: What’s your special power?
1
RESOURCES
The construction plant company is to place a bulk order for ten chemical
substances that they need:
Use/equipment
Your chemical product
Fire extinguisher
Carbon dioxide
Electrical wires
Copper
Welding
Argon
Lubricant
Graphite
Abrasive
Silicon dioxide
Paint
Titanium dioxide
Dehumidifier
Calcium chloride
Air bags
Sodium azide
Tools
Iron
Computer circuits
Silicon
a) produce an information booklet/leaflet for each of four of those in the table
above.
Using appropriate websites and/or textbooks and/or chemical data books,
research the following for each of the chemical products you chose:
 Chemical properties –chemical reactivity; type of chemical bonding and
structure; outer electron arrangement (2.B P5)
 Physical properties – thermal and electrical conductivity; melting and
boiling points; solubility in different solvents; viscosity etc. Other uses and
applications. (2.B P4)
b) Examine each of the chemical and physical properties for your four
different chemical products and explain:
 What these properties mean (2.B P4 P5)
2.
 Which chemical and physical properties contribute to the intended use and
why these properties are needed? (2.B P4 P5)
The construction plant company is considering whether to use diamond,
titanium or aluminium oxide to make their drill heads. They have asked you
to provide them with a report analysing the three materials, and
recommending which material to use.
These are the specific points the company has asked you to include in your
report:
 An explanation of the chemical and physical properties of diamond,
titanium and aluminium oxide. (2.B M4)
 What the ideal properties required from a material used in the manufacture
of drill heads would be. (2.B M4)
Finally, based on your research and knowledge of these chemicals, which of
diamond, titanium and aluminium oxide would you recommend and why? (2.B
D3)
The grading criteria that this assignment relates to:
P4
Describe how chemical substances are used based on their physical properties
P5
Describe how chemical substances are used based on their chemical properties
M4
Explain how physical and chemical properties of chemical substances make them suitable for their
uses
D3
Assess the suitability of different types of substance for a specified use
If you have not achieved the Level 2 criteria, your work will be assessed to determine if the following
Level 1 criteria have been met.
Criterion
To achieve the criteria you must show that you are able to:
Unit
reference
Describe physical properties of chemical substances
2
1B.4
Describe chemical properties of chemical substances
2
1B.5
Evidence you must produce for this task;
Level
Description
Table 1 research notes completed on 4 chemicals
2B.P4
2B.P5
2B.P4
2B.P5
For the 4 different chemicals from above an explanation of
1. What these properties mean
2. Which chemical and physical properties contribute to the
Checklist
Part
2B.M4
Part
2B.M4
2B.D3
intended use and why these properties are needed.
Table 2 completed for the chemical and physical properties of
diamond, titanium and aluminium oxide.
A description of the ideal properties required from a material used in
the manufacture of drill heads.
An explanation of which of diamond, titanium and aluminium oxide
would you recommend and why? 2 questions off slide.
Learner Assessment Submission and Declaration
This sheet must be completed by the learner and provided for work
submitted for assessment.
Learner name:
Date issued:
Assessor name:
Completion date:
Submitted on:
Qualification: BTEC Level 1/2 First Award in Principles of Applied Science
Assessment reference and title: Unit 2: Chemistry and Our Earth, Assignment B
Task
ref.
Evidence submitted
Page numbers or
description
Learner declaration
I certify that the work submitted for this assignment is my own. I have clearly
referenced any sources used in the work. I understand that false declaration is a
form of malpractice.
Learner signature: ________________________________Date:_______________
Summary assessor’s feedback
Signed:
Dated:
Internal verifier’s comment
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