Grade+8+Chemistry+spring+2013

For Ilmiö translations and full IB criteria, click here

Word lists can be downloaded here:

**8A - you'll find the Autumn 2012 page here**
Your guiding question: **From what are substances made** **?** Area of interaction: **Human Ingenuity**

(what you should know) || ==Resources== || ==Homework== || ==Deadline== || The structure of atoms. Ilmiö p105-108 || * discuss ideas of what is inside matter Scale of the universe
 * ==Week/date== || ==Activity== || ==Learning outcomes==
 * 1 2/1/13 || What is inside substances ?How do we know these things are inside us, when we cannot see them ?
 * recall the idea that matter is made from atoms, inside which are electrons, protons and neutrons
 * recall the relative sizes, charges and positions of the particles inside atoms
 * reflect on whether we know these theories are true or not || Powers of 10 video

Images of atoms

Interactive periodic table

Printable periodic table || || For next lesson || Introducing a reactivity series || * identify chemical reactions through observations (eg visual changes) Socrative test Atomic Structure 0 || Learn all the key terms || For next lesson || Groups and periods Reactivity patterns in groups || * identify regions of the Periodic Table according to the properties of the elements in them
 * 2 7/1/13 || Reaction patterns of metals: magnesium, zinc, iron, sodium with water;magnesium, zinc, iron with acid.
 * list some chemical reactions in order of reactivity
 * compare reactions of some metals in acid to water || [[file:karinparker/PeriodicTable.pdf|PeriodicTable.pdf]]
 * 3 14/1/13 || Reviewing patterns in the Periodic Table - metals, non-metals, gases.
 * explain the terms group and period
 * describe patterns of reactivity in the halogens and the alkali metals || Film clip Ferocious Elements

|| Learn all the key terms || For next lesson || || Complete the worksheet.
 * 4 21/1/13 || Understanding why there are patterns in the Periodic Table - electron shells || * use the electron shell model to predict the reactivity of elements
 * recall that electrons orbit the nucleus in shells
 * recall there is a maximum of 2 electrons in the first shell, 8 in the second and 8 in the third
 * understand that atoms are more reactive the closer they are to having a full outer shell
 * fill electron shell diagrams correctly for the elements of the Periodic Table (up to Group 2 in Period 3) if given the atomic number || [[file:electron arrangement table.pdf]]

Note 4d Iodine is group 17 4e Xenon is group 18 || For next lesson || Listing familiar formulae and trying to work out why the elements are in ratio. Explaining these ratios in terms of full outer shells. Bonding between atoms fills outer shells. What are ions ? Drawing diagrams of electron shells for ions. || * understand that electrons can be moved between atoms in chemical reactions
 * 5 28/1/13 || Why is water H 2 O and not H 3 O or HO 2 ?
 * stable compounds have atoms with complete outer shells
 * explain why two atoms of hydrogen will react with one atom of water to form a stable compound
 * use the number of electrons in the outer shell to identify the formula of a compound such as potassium bromide
 * explain what is meant by the term ion
 * draw electron shell diagrams for ions
 * recall that metals form ions by losing electrons; non-metals form ions by gaining electrons
 * explain why metal ions will attract non-metal ions ||  ||   ||   ||
 * 6 4/2/13 || Investigating compounds

We will look at a variety of compounds, some of which have ionic bonds. We look at the properties of the substances and try to relate these to ionic bonds || * carry out an experiment to investigate the properties of some compounds || ||  ||   ||
 * [|Details]
 * [[file:karinparker/Investigating compounds.docx|Download]]
 * 22 KB
 * [|Details]
 * [[file:karinparker/bonding.ppt|Download]]
 * 660 KB
 * 7 11/2/13 || TET week - no lesson ||  ||   ||   ||   ||
 * 8 18/2/13 || Ionic and covalent (molecular) compounds.

Writing down ionic formulae and showing how electrons move in ionic reactions.

Comparing this with covalent bonding.

Identifying the properties of compounds with ionic and covalent bonds || * recognise ionic compounds from some of their properties Examining different substances - ionic or covalent ? youtube video 10 mins
 * recall ionic compounds are soluble in water, have solutions which conduct electricity, and have high melting points.
 * explain these properties using the idea of forces in ionic bonds, and the movement of electrons
 * draw covalent bonds for compounds made from a metal and non-metal
 * recall that elements bond to themselves covalently eg in H 2 || Sodium and chlorine -[| ionic bonding you tube video]

Investigating compounds example results sample results from last week's experiment
 * [|Details]
 * [[file:karinparker/Investigating compounds answers.docx|Download]]
 * 23 KB

Ilmiö p.121-132 || Learn all the key terms || For next lesson ||
 * 9 25/2/13 || NO LESSON: TALENT SHOW ||  ||   ||   ||   ||
 * 10 Ski break ||  ||   ||   ||   ||   ||
 * 11 11/3/13 || Acids and alkalis || * identify liquids as acidic or alkaline
 * use the pH scale to identify acids, alkalis and neutral liquids
 * list properties of acids and alkalis
 * identify reaction patterns for acids and alkalis
 * correctly name salts produced by different acids
 * define what is meant by a salt || Ilmiö chapter 151

revising properties of acids - reactions of metals ('MASH') strong and weak acids How chlorides, sulfates, nitrates and other salts are produced. || Write a clear and logical method for an experiment which you could do to find out if blueberry juice is a good indicator of acidity or alkalinity. || For next lesson || Neutralisation || * use indicators to detect acids and alkalis Neutralising an alkali - experiment using universal indicator Importance of neutral chemicals ||  ||   || You will have two lessons and homeworks to plan, carry out and write up this experiment. This experiment is important as it will make a big contribution to your grade **8 and 9** number. :) ||  || DEADLINE: 26/4 || || Revision for the test ||   || are allowed. ||   ||   ||   ||   ||
 * 12 18/3/13 || NO LESSON: ICT THEME DAY ||  ||   ||   ||   ||
 * 13 25/3/13 || NO LESSON - GOOD FRIDAY ||  ||   ||   ||   ||
 * 14 1/4/13 || Comparing indicators.
 * evaluate different indicators
 * carry out a neutralisation reaction using a 'full range indicator' || Is blueberry juice a good indicator ? Experiment to compare it to universal indicator (a full range indicator which changes colour for different pH's)
 * 15 8/4/13 || Stomach acid assignment ||  || [[file:Chemistry Assignment  stomach acid April 12.doc]] You will have two lessons and homeworks to plan, carry out and write up this experiment. This experiment is important as it will make a big contribution to your grade **8 and 9** number. :) ||   || DEADLINE: 26/4 ||
 * 16 15/4/13 || Stomach acid assignment ||  || [[file:Chemistry Assignment  stomach acid April 12.doc]]
 * 17 22/4/13 || Preparing salmiakki ||  || You will use neutralisation to make salmiakki, ammonium chloride. We may not be able to taste this during the lesson as it will take time for the water to evaporate from the solution. However it will be ready for the next lesson, when you can bring in liquorice if you want (and dare) to taste chemically pure salmiakki.
 * 18 29/4/13 || TEST this week. This is NOT open book - so no notebooks
 * 19 6/5/13 ||  ||   ||   ||   ||   ||
 * 20 13/5/13 ||  ||   ||   ||   ||   ||
 * 21 20/5/13 ||  ||   ||   ||   ||   ||
 * 22 27/5/13 ||  ||   ||   ||   ||