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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


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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


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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.


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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.


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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.


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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.


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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.


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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.


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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.


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Sunday 9 April 2023


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


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


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


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


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


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


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.


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Sunday 9 April 2023


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


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.


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Sunday 9 April 2023


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.


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Sunday 9 April 2023


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.


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Sunday 9 April 2023


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.


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Sunday 9 April 2023


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


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


•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.

btec certificate

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