analyse a video about the complete extraction process of iron from hematite in the blast furnace
Slide 3 - Tekstslide
Our Learning Map
analyse a video about the complete extraction process of iron from hematite in the blast furnace
sort out cards showing the steps in extracting iron from hematite
Slide 4 - Tekstslide
Our Learning Map
analyse a video about the complete extraction process of iron from hematite in the blast furnace
examine the importance of slag formation in the extraction process
sort out cards showing the steps in extracting iron from hematite
Slide 5 - Tekstslide
Our Learning Map
State the conditions required for the rusting of iron and steel to form hydrated iron(III) oxide
State some common barrier methods, including painting, greasing and coating with plastic
Describe how barrier methods prevent rusting by excluding oxygen or water
- State the symbol equations for the extraction of iron from hematite
(a) C + O2 → CO2
(b) C + CO2 → 2CO
(c) Fe2O3 + 3CO → 2Fe + 3CO2
(d) CaCO3 → CaO + CO2
(e) CaO + SiO2 → CaSiO3
Slide 6 - Tekstslide
Metal Extraction and Reactivity
Topic 6. Metals
21 February 2024
Slide 7 - Tekstslide
Collaborative Work 5C/E - "Extract Sort"
Goal - Classify a list of metals based on their reactivity and predict the extraction methods required for each.
Product/Output - List of metals
Standards - Correct list.
timer
5:00
Sodium
Platinum
Gold
Magnesium
Iron
Copper
Zinc
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Useful information
Metals above carbon = Electrolysis
Metals between hydrogen and carbon = Burning with carbon
Metals below hydrogen but above silver = Burning directly in the air
Metals from silver and below = No extraction needed
Slide 9 - Tekstslide
(Hydrogen)
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Plenary session
What have you learned from the sorting activity?
Slide 11 - Tekstslide
Metal Extraction and Reactivity
Topic 6. Metals
21 February 2024
Slide 12 - Tekstslide
secondaryscience4all.wordpress.com
Slide 13 - Link
Slide 14 - Tekstslide
What do you call this rock or mineral ore?
Slide 15 - Tekstslide
Questions to think about while watching the video.
a. What do you call the ore from which iron can be extracted?
b. How is iron extracted from its ore?
Slide 16 - Tekstslide
Slide 17 - Tekstslide
Collaborative work 6C/E - Blooket Game
Goal - Answer the questions related to the video watched. Win the game and get 2 extra credits.
Product/Output - Blooket scores.
Standards - Correct responses and quick response.
timer
15:00
Slide 18 - Tekstslide
play.blooket.com
Slide 19 - Link
Plenary session
Slide 20 - Tekstslide
Extraction of iron from hematite
Coke burns in the hot air, forming carbon dioxide. The reaction is exothermic, giving off heat and heating the furnace.
At the high temperatures in the furnace, more coke reacts with carbon dioxide, forming carbon monoxide. Carbon dioxide has been reduced to carbon monoxide.
Carbon monoxide reduces the iron(III) oxide in the iron ore to form iron. This will melt and collect at the bottom of the furnace, where it is tapped off.
Limestone (calcium carbonate) is added to the furnace to remove impurities in the ore. The calcium carbonate in the limestone thermally decomposes to form calcium oxide.
The calcium oxide formed reacts with the silicon dioxide, an impurity in the iron ore, to form calcium silicate. This melts and collects as a molten slag floating on the molten iron tapped off separately.
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Classwork 6 - Extraction of iron
Goal - Write the three raw materials added to the top of the blast furnace. Sequence (arrange) the steps in extracting iron from hematite by numbering them correctly.
Product/Output - Classwork 6 paper.
Standards - Correct responses.
timer
15:00
Slide 22 - Tekstslide
Plenary session
What have you learned from classwork 6?
Slide 23 - Tekstslide
Metal Extraction and Reactivity
Topic 6. Metals
21 February 2024
Slide 24 - Tekstslide
Lesson Key Points
The position of metals in the reactivity series affects the ease of obtaining them from their ores.
Metals higher in the reactivity series are more reactive and require more energy to extract.
Metals lower in the reactivity series are less reactive and can be obtained using simpler extraction methods.
Importance of Coke in providing heat and producing carbon dioxide
Conversion of carbon dioxide to carbon monoxide
Role of carbon monoxide in reducing iron(III) oxide
Thermal decomposition of calcium carbonate to produce calcium oxide
