s2 chemistry metals lesson 1...s2 chemistry metals lesson 1 revision i have developed my knowledge...

S2 ChemistryMetals

Lesson 1REVISION

I have developed my knowledge of the Periodic Table by considering the properties and uses of a variety of elements relative to their positions.

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NEW LEARNING

I can participate in practical activities to extract useful substances from natural resources.

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Starter Questions1. Write down 3 words that describe a

metal.

Words might include hard, shiny, strong, sharp?

2. Are most metals cheap or expensive? Why do you think this is?

Metals tend to be expensive because they are a finite (limited) resource and must be mined from the earth.

Chemistry topic – Jobs using metals

• Smith (a.k.a. metalsmith), such as blacksmith or silversmith• Jeweler• Founder• Steel erector• Welder• Boilermaker• Pipefitter• Millwright• Gunsmith• Farrier• Furniture maker

Lesson 2

Properties of Metals

Starter

• Which metal element is a liquid at room temperature?

• Where would you find the Metals in the periodic table?

• What is a melting point?

Lesson 3

• The Periodic table (revision)

Starter

• Choose a group within the periodic table and write the elements of this group on the white board.

• Circle one and use your periodic table to find out 2 things about it.

S2 ChemistryMetals

Lesson 4REVISION

I have developed my knowledge of the Periodic Table by considering the properties and uses of a variety of elements relative to their positions.

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NEW LEARNING

I can participate in practical activities to extract useful substances from natural resources.

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Starter Questions1. Put these metals in order of reactivity,

with most reactive first: Ca, Mg, Na, K.K, Na, Mg, Ca2. When these metals react with water,

what is seen which shows a chemical reaction?

Bubbles of gas, heat or light given out.3. Which 2 groups in the periodic table do

these metals belong to?Alkali Metals and Alkaline Earths.

By the end of this lesson I will be able to…..

• Find the transition metals in the periodic table

• Give examples of different transition metals and how they are commonly used

Find the fibs!Facts about Transition Metals?

Transition metals…

Usually have low

melting points

Usually have high

melting points

Are all

magnetic

Are all solids at

room temperature

(apart from

mercury)

Are usually

strong

Are found in groups 1 and

2 of the periodic table

Are usually

dense (heavy)

Are found in the middle of the periodic table

Examples are potassium,

aluminium and sodium

Examples are iron,

silver and titanium

Are usually good

conductors of heat

and electricity

Are usually good

insulators of heat

and electricity

Have lots of uses

(including being used

as catalysts to help

speed up reactions)Are usually malleable

(can be bent into

shapes)

Are usually

ductile (can be

stretched into

wires)

Uses of Transition Metals

One less well known use is as _______________ . A catalyst speeds up a chemical reaction without being used up. It can be reclaimed after the reaction and _____________.

_______________ metals are commonly used in household appliances (e.g. Copper,____________, chromium).

They are also often used to make ___________ and decorative items.

catalyts jewellery transition aluminium reused

Transition

aluminium

jewellery

catalysts

reused

Crosswords

Catalysts in Action!You are going to examine 3 different transition metal catalysts. Each time, write down what you see in your jotter:

Catalyst Transition Metal

Observations Use

ManganeseOxide (teacher demo)

Cobalt Chloride (you do it!)

Catalytic Converter (video)

Catalysts in Action!Catalyst Transition

MetalObservations Use

ManganeseOxide

Mn Caused bubbles of oxygen to form quicker in hydrogen peroxide.

Makes areaction go faster at lower temperature.

Cobalt Chloride

Catalytic Converter

Catalysts in Action!Catalyst Transition

MetalObservations Use

ManganeseOxide

Mn Caused bubbles of oxygen to form quicker in hydrogen peroxide.

Makes areaction go faster at lower temperature.

Cobalt Chloride

Co Lots of bubbles and colour changespink to green to pink again.

Shows that a catalyst is the same after the reaction.

Catalytic Converter

Catalysts in Action!Catalyst Transition

MetalObservations Use

ManganeseOxide

Mn Caused bubbles of oxygen to form quicker in hydrogen peroxide.

Makes areaction go faster at lower temperature.

Cobalt Chloride

Co Lots of bubbles and colour changespink to green to pink again.

Shows that a catalyst is the same after the reaction.

Catalytic Converter

Pt or Pd Allows unusual reactions at a lower temperature eg. CO to CO2

Converts harmful gases to less harmful ones.

Exit TaskHow well do you understand what catalysts do?

Hold up your ‘fist to five’:

1 = Don’t know what you’re on about!2= Can tell you a little, but don’t understand it.3 = Can mention some examples, but couldn’t explain it to someone else.4 = I’m nearly there, but I still have some questions.5 = I could explain this lesson to someone else and answer questions on it.

Lesson 5

• Mining metals

Starter

• Which group of metals in the period table are the most reactive?

• Which group of metals are the least reactive?

• Look at the periodic table in your planner and list 5 of the least reactive metals

Lesson 6

Recycling

Starter

• Think about your kitchen

a) how many bins do you have in it?

b) How many bins do you have outside?

c) What colour are they and what are they for?

d) Why does mixing the metal with the glass and the plastic not matter?

Find out about recycling metals

• Which metals do we recycle?

• How is this done?

• Why do we have to do it?

• Make a poster to encourage recycling

Lesson 7

Experimental Design

• Plan, carry out, record and analyse the results of an experiment