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Unit 2: Physics Unit 3: BiologyUnit 1: Chemistry
Assignment 1
Assignment 2
Assignment 3
Assignment 4
Assignment 5
Sunday 9 April 2023
Assignment 1
Assignment 2
Assignment 3
Assignment 4
Assignment 5
Assignment 1
Assignment 2
Assignment 3
Assignment 4
Assignment 5
Assignment 6
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Scenario
You work in the Education Department of the Information Centre at a
local seaside town and have been asked to set up a small exhibition to
tell children about ‘science on the seashore’. Your exhibition will
include samples taken from the seashore that you have specifically
chosen so you can educate children about elements, mixtures,
compounds, atoms and molecules.
Assignment 1: What’s in your rock pool?
Sunday 9 April 2023
element compound mixture
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As part of your exhibition you will produce a detailed information
poster that explains all the differences between elements, mixtures
and compounds, with lots of drawings to show how the atoms are
arranged in elements, compounds and mixtures.
Your poster needs to be user-friendly and colourful to attract people to
its content and its information. The exhibition must cover the following
substances found at the seashore: air, sea water, white foam in
waves, fresh water in clouds, rocks, pebbles and sand.
Sunday 9 April 2023
element compound mixture
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TASK 1 − What is it? (P2)
For your exhibition you need to write a list, draw and collect pictures
of the substances you are going to display (air, sea water, white
foam in waves, fresh water in clouds, rocks, pebbles and sand) with
a detailed label to go alongside each picture.
Combine your pictures, labels and other information into a poster.
Guidance
For each of the labels and each substance you must identify:
•what elements are present in each substance
•what the symbol is for these elements
•if your substance is an element, a compound or mixture
if it is a solid, liquid or gas.
Sunday 9 April 2023
element compound mixture
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Sunday 9 April 2023
TASK 2 − What’s the difference? (M1)
For the elements, mixtures and compounds in each of your
substances (air, sea water, white foam in waves, fresh water in
clouds, rocks, pebbles and sand) you need to draw their chemical
formulae (for example, KCl for potassium chloride) and structural
formulae (i.e. the chemical diagram for potassium chloride).
Guidance
Next to the drawings of the chemical formulae and structural
formulae, you need to describe the differences between these
elements, mixtures and compounds, making reference to your
drawings of these chemical formulae and structures.
element compound mixture
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Sunday 9 April 2023
Assignment2: How the physical properties of substances determine their use in everyday life
Scenario
In order to correctly detect and identify unknown substances found
at a crime scene or at a pollution spillage site or in the detection of
substances found in food or water supplies, analytical chemists
and forensic scientists need to be able to understand the physical
properties of ionic, covalent and metallically bonded substances.
ionic covalent metallic
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Sunday 9 April 2023
TASK 1 − Physical properties (P2)
Carry out a practical investigation, looking at some of the
physical properties of some elements and compounds.
Follow Task Sheet 1 and record your results on this sheet.
ionic covalent metallic
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Sunday 9 April 2023
TASK 2 − Suits you! (M2)
Using a textbook or the internet, find out what the following
chemical substances are used for in your house or in industry:
•copper
•graphite
•poly(ethene)
•glass
•sodium chloride
•sucrose.
ionic covalent metallic
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Sunday 9 April 2023
Guidance
•Using your knowledge of their physical properties that you
obtained from the investigation in Task 1, explain why the
physical properties of these substances make them suitable for
their use in the home or in industry.
Write a report about these substances entitled ‘Chemical
substances: their uses in the home’ on one side of A4 plain paper.
ionic covalent metallic
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Sunday 9 April 2023
TASK 3 − Structures and properties (D1)
Using a textbook or the internet, research these chemical substances:
graphite, sodium chloride, copper. For each substance, find out the
following physical properties:
•melting point
•boiling point
•electrical conductivity
•thermal conductivity
•solubility in water/solubility in other substances.
ionic covalent metallic
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Sunday 9 April 2023
Guidance
•Draw a picture of the chemical structures of these substances and,
using these pictures, explain how the physical properties are related to
their structures.
•Write a report about the link between their structures and physical
properties.
ionic covalent metallic
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Sunday 9 April 2023
Atomic structure electronic structure
Assignment 3: The elements of the periodic table
Scenario
You work as a forensic investigator for a company that investigates
crime scenes, sites of environmental accidents and road traffic
accidents. As a forensic analytical chemist you need to be able to
identify the patterns and trends in the chemical elements of the periodic
table
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Sunday 9 April 2023
It is important for you to understand how reactive certain elements
are and the properties of their ionic, covalent and/or metallically
bonded substances. This helps when testing and analysing
materials found at these crime scenes, areas of environmental
pollution (rivers, seas, land and the local atmosphere) or in the
detection of substances found in food or water supplies.
Atomic structure electronic structure
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Sunday 9 April 2023
Atomic structure electronic structure
TASK 1 − Atomic structures (P3)
Using a periodic table to help you, draw
diagrams of the atomic structures of
hydrogen, helium, carbon, oxygen and
nitrogen atoms and describe the properties
of the electrons, neutrons and protons
present in them, as well as their position in
the atom. Using carbon as an example,
describe what isotopes are and the
similarities and differences between the
isotopes of carbon.
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Sunday 9 April 2023
Atomic structure electronic structure
TASK 2 − Electronic structures (P3)
Using the worksheet, describe the electronic
structures of the following elements:
hydrogen, helium, lithium, beryllium, boron,
carbon, nitrogen, oxygen, fluorine, neon,
sodium, magnesium, aluminium, silicon,
phosphorus, sulfur, chlorine, argon,
potassium, calcium. Follow Task Sheet 1 and
record your results on this sheet.
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Sunday 9 April 2023
Atomic structure electronic structure
TASK 3 − Group 1 elements (P4)
Investigate the chemical properties of the Group 1
elements by making relevant observations during a
practical demonstration of Group 1 elements.
Follow Task Sheet 2 and record your results on it.
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Sunday 9 April 2023
Atomic structure electronic structure
TASK 4 − Group 7 elements (P4)
Investigate the chemical properties of the
Group 7 elements by making relevant
observations during a practical demonstration
of Group 7 elements. Follow Task Sheet 3
and record your results on it.
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Sunday 9 April 2023
Atomic structure electronic structure
TASK 5 − Patterns and trends (M3)
Using your knowledge of the atomic
structures of the elements of Groups 1 and 7,
describe the following:
•the patterns and trends in these atomic
structures
•the relationship between the position in the
periodic table and the number of outer
electrons
•the electronic structure as you go down each
group.
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Sunday 9 April 2023
Atomic structure electronic structure
TASK 6 − Useful compounds
(M4)
Find out some uses for the elements of Groups 1
and 7. Find out at least five uses for compounds with
the elements of Groups 1 and 7 in them, for example
sodium hydroxide and silver bromide. Look for
examples of these compounds in agriculture, X-ray
photography and refrigerators.
Knowing what you do about the reactivity of Group 1
and 7 elements, explain why there are many more
uses for compounds containing Groups 1 and 7
elements than for just the elements on their own.
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Sunday 9 April 2023
Atomic structure electronic structure
TASK 7 − Explaining the trends (D2)
Using the experimental data you have obtained and the following data,
explain the trends in the chemical behaviour/properties of the elements
of Groups 1 and 7 of the periodic table, with reference to their
electronic structure or arrangement. Follow Task Sheet 4 and record
your results on this sheet.
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Sunday 9 April 2023
chemical reaction catalyst
Assignment 4: How fast is your reaction?
Scenario
You work as a manufacturing industrial chemist for a large international
company that makes its own range of health and beauty products.
Most of these products are sold in the company’s retail outlets as well
as in supermarkets and smaller shops. Every year you receive a
number of Year 10 or Year 11 students for a period of work experience
and it is your job to teach them about the products you make. To do
this you will need to tell them the following:
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Sunday 9 April 2023
Assignment 4: How fast is your reaction?
•the chemical equations and chemical formulae for making the
products
•the correct amounts needed
•how to change the speed and rate of each chemical reaction by
changing certain reaction conditions
how the company’s profits can be maximised by finding the best
reaction conditions.
chemical reaction catalyst
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Sunday 9 April 2023
chemical reaction catalyst
TASK 1 − Temperature and chemical reaction
(P5)
Investigate the chemical reaction between sodium
thiosulfate solution and dilute hydrochloric acid at
different temperatures.
Follow Task Sheet 1 and record your results on this
sheet.
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Sunday 9 April 2023
chemical reaction catalyst
TASK 2 – Concentration and chemical reactions (P5)
Use the same reaction to investigate the changes in the rate of
reaction using different concentrations of sodium thiosulfate
solution.
Follow Task Sheet 2 and record your results on this sheet.
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Sunday 9 April 2023
chemical reaction catalyst
TASK 3 – Catalysts and chemical reactions (P5)
Investigate the effects of different catalysts on a chemical reaction to
show how different catalysts can change the rate of a reaction.
Follow Task Sheet 3 and record your results on this sheet.
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Sunday 9 April 2023
chemical reaction catalyst
TASK 4 – Surface area and chemical reactions (P5)
Investigate the effects of surface area on the rate of the chemical
reaction between hydrochloric acid and limestone – a reaction that
occurs when acid rain reacts with limestone buildings.
Follow Task Sheet 4 and record your results on this sheet.
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Sunday 9 April 2023
chemical reaction catalyst
TASK 5 – Time and chemical reactions (P5)
Investigate how the concentration of a chemical reactant affects
the rate of a chemical reaction as a function of time. Use the
results table to record your results accurately.
Follow Task Sheet 5 and record your results on this sheet.
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Sunday 9 April 2023
chemical reaction catalyst
TASK 6 – Report (M5)
You are a chemist working for a chemical company that manufactures
ammonia. You have been given the task of lowering the cost of the
Haber process by carrying out the reaction at 200 °C, 100 atm and
by using less catalyst. You have to write a report to your bosses
explaining why this is not a good idea.
In your report you need to research the collision theory and how it
explains the four main factors that affect the rate of a reaction.
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Sunday 9 April 2023
chemical reaction catalyst
TASK 7 – The Haber process (D3)
Research the Haber process, for the manufacture of ammonia, and find
out how changes in pressure, temperature and amount of catalyst affect
the yield of the ammonia produced. Write a short report on how these
different factors affect the yield by:
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Sunday 9 April 2023
chemical reaction catalyst
•writing down the equation for the Haber process in words and symbols
•finding out the values of temperature and pressure that give certain
yields
•finding out the actual values of temperature and pressure used to
achieve the best yield
•analysing the % yield graph of ammonia produced and explaining why
the actual reaction conditions of temperature and pressure are chosen.
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