C10 Using Resources

3

What do humans use resources for?

1

Which one of the following objects that you use all the time comes from a renewable resource?

Tick one

1

What are finite resources?

1

Match each type of water to the correct example.

Draggable item		Corresponding Item
Pure
Wastewater
Freshwaer
Seawater

1

Sam is preparing to analyse a chemical sample by first dissolving it in water. They reckon tap water will be okay to use because it is potable. Is Sam correct? Explain your answer.

1

Match each description to the correct type of water.

Draggable item		Corresponding Item
used water from homes, factories and agriculture		Freshwater
found in lakes, rivers, reservoirs and glaciers		Waste water
Contains high amounts of dissolved substances		Pure
Composed of only H2O molecules		Seawater

1

Match each description to the correct step name.

Draggable item		Corresponding Item
Screening		Removes very small, insoluble particles
Filtration		A grid acts like a sieve, removing large and insoluble objects
Sedimentation		Kills bacteria and other microbes
Sterilisation		Small, insoluble particles settle out of the water source

1

Put each step into the correct order to form potable water from groundwater or freshwater.

Screening
Sedimentation
Filtration
Sterilisation

1

Izzy has written some instructions for how dirty water could be ‘cleaned’ using common laboratory equipment.
Read through Izzy’s apparatus and method. Correct any mistakes you find.

1

Place appropriate statements on the Venn diagram.

Pressure
Pure Water
Boil
Seawater
Partially Permeable Membrane
Condensation
Desalination
Filtration
Freshwater
Temperature

Distillation
Reverse Osmosis
Both
Neither

1

Many factors are considered when determining which method to use to obtain potable water from a source.

a)What are the advantages and disadvantages of using distillation to obtain drinking water from seawater?

b)Why is distillation not used to provide drinking water in the UK?

1

Match each description to the correct type of water.

Draggable item		Corresponding Item
H2O only		Groundwater
moves through porous rock		Pure water
oceans		Rainwater
only falls from the sky		Seawater

1

Place each substance below into the correct column(s) to show which soluble substances are found in each type of water. You can reuse answers

Carbon Dioxide (CO2)
Sodium Chloride (NaCl)
Sulfur Dioxide (SO2)
Dissolved Ions (Ca2+, Mg2+)

Groundwater
Rainwater
Seawater

1

Jun needs to determine the pH of a sample.

Write a method for how he should use universal indicator (UI) paper to complete his task.

1

Use the method from above to determine the pH of four water samples.

Record your results in the table below.

1

What equipment should be used to:

hold the water sample over boiling water?

1

What equipment should be used to:

measure the mass of the water sample?

1

What equipment should be used to:

measure the volume of the water sample?

1

Match each diagram to the appropriate description.

Draggable item		Corresponding Item
		measure 5 cm3 of water sample
		record the mass of the watch glass
		remove condensation from watch glass
		record the mass of the watch glass and dissolved solids
		heat sample until dry

1

Order the statements from the last question to create a method for obtaining the dissolved solids from a sample of water.

Draggable item		Corresponding Item
4		measure 5 cm3 of water sample
3		record the mass of the watch glass
5		remove condensation from watch glass
2		record the mass of the watch glass and dissolved solids
1		heat sample until dry

1

Sofia suspects she has a pure water sample and is testing to see if it contains any dissolved substances. What should she expect to observe and why?

1

Sam used the following method and equipment set-up to see how much dissolved solids are in their garden pond water.
How might Sam’s investigation be improved?

Method
1.Measure 5 cm3 of pond water and pour it onto the watch glass.
2.Heat the pond water until it is dry.
3.Record the mass of the watch glass.

1

Follow the method from above to obtain any dissolved solids from a water sample.

A student’s results are shown in the table below.

What mass of dissolved solids would be in 250 cm3 of the same type of water?

1

Sofia suspected her water sample was pure and tested to see if it contained any dissolved substances. Here is a table of her results.

Sofia expected to see no dissolved solids in her sample. What may have caused her results?

1

5 cm3 samples of four different types of water were analysed. The results are in the table below. Put the water samples into order from the most to the least pure.

Seawater - pH 8.1 - Mass of dissolved solids = 0.200g
Tap water - pH 6.9 - Mass of dissolved solids = 0.002g
Groundwater - pH 6.3 - Mass of dissolved solids = 0.004g
River Water - pH 7.4 - Mass of dissolved solids = 0.003g

1

Some students investigated different water samples by heating 10 cm3 of each until dry in an evaporation dish with a mass of 94.56 g. Their results are shown in the table below.

Which sample is pure water? Explain your answer.

Which sample is seawater? Explain your answer.

1

Complete the diagram to show how you can distill a water sample and collect pure water.

Label the following:
●pure water
●water sample

1

Alex and Aisha used different distillations setups to purify 50 cm3 of impure water. They distilled their samples for the same period of time.

Explain why Alex collected a smaller volume of pure water than Aisha.

1

Both test the boiling point of the distillate obtained in in the last question

a)What result would you expect if the distillate:
i) is pure?
ii) is impure?

1

Pure water has a boiling point of

1

water in the seas and oceans
water in underground streams and rocks
water in underground streams and rocks, rivers, lakes, ice caps and glaciers
used water from homes, industry, and agriculture
water that is fit to drink
water that is 100% water and contains nothing else
Bottled water
Distilled water

Contains microbes and dissolved substances
Contains dissolved substances
Nothing - just water

3

What chemicals are used to sterilise water?

Tick 3

1

What is apparatus W on above the figure above?

Tick one box

1

What is the name of this method separation in the question before?

Tick 1 box

1

(see image above) Name the changes of state taking place at A and B in the figure above. 
Use words below.
Change of state at A is____________ 
Change of state at B is_______________ 

What is the pH of pure water

1

Match types of water to their characteristics.

Draggable item		Corresponding Item
Pure water		Found below the earth's surface.
Potable water		Contains no impurities, fully clean.
Ground water		Safe for drinking and cooking.

1

Match steps of making potable water to reasons

Draggable item		Corresponding Item
passing water through filter beds		remove pieces of solid
sterilising		kill microorganisms
desalination		remove dissolved salts

10

Desalination can be carried out through distillation. Label the diagram below with the following labels

a. Condenser
b. Thermometer
c. Salty water is boiled
d. 100°C
e. Vapours condense
f. Flask
g. Distilled water
h. Beaker
i. Salty water
j. Steam leaves the flask

1

Why is desalination only carried out in wealthy countries?

6

How is waste water treated? Please put these in the correct order

Remove effluent and aerate
Primary sedimentation tanks
Secondary settling tanks
Return to rivers and waterways
Screen and remove frit and particles
Treat water

1

Please use the words below to fill in the correct boxes to describe the process of phytomining.

Large scale extraction of minerals (metal compounds) from the earth to make metals using traditional mining techniques is only cost effective when there are high concentrations of the mineral in the ground. We call such a mineral, a ___________________ .
When there are only small amounts of mineral in the ground, called a __________________ , then a process called ________________ , involving growing plants, is economic to use.
Plants called ______________________  are grown in soil containing the low grade ore minerals. They absorb the minerals via their           __________  and what they don't use is stored and           _________________  in their leaves. When the plants are big enough, they are __________  in air and the impure metal compound is found in the ________ .
Chemical processes such as _________________ and           _________________ are used to then purify the metal from the ash.

Decide which of these are bioleaching or phytomining

This process is made more efficient by controlling conditions such as pH, temperature and humidity
Combustion and displacement reactions involved
Involves plants
Use active transport to move metal ions from soil into roots
Some organisms involved use chemosynthesis to produce sugars
This method takes a long time - up to 2 years
Involves bacteria
Extracts metals from slag heaps, contaminated ground and low grade ore

Bioleaching
Phytomining

1

Give a brief description of phytomining

6

Disposable cups are made from coated paper or poly(styrene). The table below shows information on the life cycle assessments (LCAs) of disposable cups.

Evaluate the use of coated paper compared with poly(styrene) to make disposable cups. Use the table above and your knowledge and understanding of LCAs

What do humans use resources for?

Which one of the following objects that you use all the time comes from a renewable resource? Tick one

What are finite resources?

Match each type of water to the correct example.

Sam is preparing to analyse a chemical sample by first dissolving it in water. They reckon tap water will be okay to use because it is potable. Is Sam correct? Explain your answer.

Match each description to the correct type of water.

Match each description to the correct step name.

Put each step into the correct order to form potable water from groundwater or freshwater.

Izzy has written some instructions for how dirty water could be ‘cleaned’ using common laboratory equipment. Read through Izzy’s apparatus and method. Correct any mistakes you find.

Place appropriate statements on the Venn diagram.

Many factors are considered when determining which method to use to obtain potable water from a source.a)What are the advantages and disadvantages of using distillation to obtain drinking water from seawater?b)Why is distillation not used to provide drinking water in the UK?

Match each description to the correct type of water.

Place each substance below into the correct column(s) to show which soluble substances are found in each type of water. You can reuse answers

Jun needs to determine the pH of a sample.Write a method for how he should use universal indicator (UI) paper to complete his task.

Use the method from above to determine the pH of four water samples.Record your results in the table below.

What equipment should be used to:hold the water sample over boiling water?

What equipment should be used to:measure the mass of the water sample?

What equipment should be used to:measure the volume of the water sample?

Match each diagram to the appropriate description.

Order the statements from the last question to create a method for obtaining the dissolved solids from a sample of water.

Sofia suspects she has a pure water sample and is testing to see if it contains any dissolved substances. What should she expect to observe and why?

Follow the method from above to obtain any dissolved solids from a water sample.A student’s results are shown in the table below.What mass of dissolved solids would be in 250 cm3 of the same type of water?

Sofia suspected her water sample was pure and tested to see if it contained any dissolved substances. Here is a table of her results.Sofia expected to see no dissolved solids in her sample. What may have caused her results?

5 cm3 samples of four different types of water were analysed. The results are in the table below. Put the water samples into order from the most to the least pure.

Some students investigated different water samples by heating 10 cm3 of each until dry in an evaporation dish with a mass of 94.56 g. Their results are shown in the table below.Which sample is pure water? Explain your answer.Which sample is seawater? Explain your answer.

Complete the diagram to show how you can distill a water sample and collect pure water.Label the following:●pure water●water sample

Alex and Aisha used different distillations setups to purify 50 cm3 of impure water. They distilled their samples for the same period of time. Explain why Alex collected a smaller volume of pure water than Aisha.

Both test the boiling point of the distillate obtained in in the last questiona)What result would you expect if the distillate:i) is pure?ii) is impure?

Pure water has a boiling point of

What chemicals are used to sterilise water?Tick 3

What is apparatus W on above the figure above?Tick one box

What is the name of this method separation in the question before?Tick 1 box

What is the pH of pure water

Match types of water to their characteristics.

Match steps of making potable water to reasons

Desalination can be carried out through distillation. Label the diagram below with the following labelsa. Condenserb. Thermometerc. Salty water is boiledd. 100°Ce. Vapours condensef. Flaskg. Distilled waterh. Beakeri. Salty waterj. Steam leaves the flask

Why is desalination only carried out in wealthy countries?

How is waste water treated? Please put these in the correct order

Decide which of these are bioleaching or phytomining

Give a brief description of phytomining

Which one of the following objects that you use all the time comes from a renewable resource?

Tick one

Izzy has written some instructions for how dirty water could be ‘cleaned’ using common laboratory equipment.
Read through Izzy’s apparatus and method. Correct any mistakes you find.

Many factors are considered when determining which method to use to obtain potable water from a source.

a)What are the advantages and disadvantages of using distillation to obtain drinking water from seawater?

b)Why is distillation not used to provide drinking water in the UK?

Jun needs to determine the pH of a sample.

Write a method for how he should use universal indicator (UI) paper to complete his task.

Use the method from above to determine the pH of four water samples.

Record your results in the table below.

What equipment should be used to:

hold the water sample over boiling water?

What equipment should be used to:

measure the mass of the water sample?

What equipment should be used to:

measure the volume of the water sample?

Follow the method from above to obtain any dissolved solids from a water sample.

A student’s results are shown in the table below.

What mass of dissolved solids would be in 250 cm3 of the same type of water?

Sofia suspected her water sample was pure and tested to see if it contained any dissolved substances. Here is a table of her results.

Sofia expected to see no dissolved solids in her sample. What may have caused her results?

Some students investigated different water samples by heating 10 cm3 of each until dry in an evaporation dish with a mass of 94.56 g. Their results are shown in the table below.

Which sample is pure water? Explain your answer.

Which sample is seawater? Explain your answer.

Complete the diagram to show how you can distill a water sample and collect pure water.

Label the following:
●pure water
●water sample

Alex and Aisha used different distillations setups to purify 50 cm3 of impure water. They distilled their samples for the same period of time.

Explain why Alex collected a smaller volume of pure water than Aisha.

Both test the boiling point of the distillate obtained in in the last question

a)What result would you expect if the distillate:
i) is pure?
ii) is impure?

What chemicals are used to sterilise water?

Tick 3

What is apparatus W on above the figure above?

Tick one box

What is the name of this method separation in the question before?

Tick 1 box

Desalination can be carried out through distillation. Label the diagram below with the following labels

a. Condenser
b. Thermometer
c. Salty water is boiled
d. 100°C
e. Vapours condense
f. Flask
g. Distilled water
h. Beaker
i. Salty water
j. Steam leaves the flask