10:27 Technicians list: Distillation demo: Salt water Gauze Bunsen burner Round bottom flask Beaker Condenser Lesson title: separating techniques- distillation and filtration FEATHERSTONE HIGH SCHOOL A Leading Edge School Science Department Lesson plan Teacher information Provision: 1) EAL: 2) SEN: Role of TA: 1) 2) 3) Technicians list: Chromatography x12 alien blood: 4 blood samples made with coloured inks labelled A-D. (sample B contains green). Water as solvent. Filter papers Cotton Wool buds beakers

10:27 Syllabus/Unit Code: Lesson number: 8 Lesson Title: separating techniques- distillation and chromatography Learning OutcomesHow I didTargets Learning Outcome 1: Be able to describe the separating process distillation Level 5 I am working at level.....because I can move up to level…... by ……………………… ………………… Learning Outcome 2: Be able to carry out and explain the process chromatography Level 6 I am working at level.....because I can move up to level…... by ……………………… ………………… Learning Outcome 3: Be able to write a conclusion for the experiment using scientific knowledge to explain Level 7 I am working at level.....because I can move up to level…... by ……………………… ………………… Connector: Unscramble these keywords 1)DRUESEI 2)ESOBULL 3)RFELIT 4)NEAVTPR ONIA

10:27 Extended Learning Imagine you are a little water molecule and you have been put into the round bottom flask. Describe your journey as you travel from point ‘A’ to point ‘D’. Remember to use the important science words you learnt in your lessons. Due date: Next lesson Research Report Criteria (6 marks total = Level 7): 1) Range of different reliable sources used and references included (books/internet/survey etc), 2) Information written in own words 3) Clear and logical structure to research report including pictures/diagrams which have been referenced 4) No evidence of copy and paste!

10:27 BIG picture What skills will you be developing this lesson? Scientific Investigation skills- by Research and Collecting Secondary data, Planning and Collecting primary data, Analysis and Evaluation. Numeracy- by using formulae in calculations Literacy- by writing well structured sentences and paragraphs ICT- by using Laptops and electronic resources Personal skills- team work, leadership Thinking and Learning skills- organisation, logic, participation, memory, exploration, creativity, judgement, planning, practice. Reflection- through self or peer assessment of each Learning Outcome Key Question: why is distillation And chromatography important? Quick Discussion: What do you already know? How is this lesson relevant to every day life?

10:27 Keywords: Distillation Chromatography Evaporation Condensation Solute Solvent Soluble Insoluble Here are some of the words we will be using this lesson… 1) Create sentences which use the keywords correctly. 2) Put your hand up if there is any key word from the list that you don’t know the meaning of.

10:27 New Information for Learning Outcome 1 Explore and Discover: Visual: demonstration Audio: demonstration Kinaesthetic: demonstration You are still stuck on this island, but you need water to drink!!! what options do you have?

10:27 Learning Activities for Outcome 1 There is one more method to get clean drinking water – Distillation. Often there are parasites and bacteria in water. Even after filtration these tiny organisms can be left behind. They can make you very ill if you drink them. One way to kill them is by boiling the water. Q1: What problems can you think of with boiling your drinking water? Distillation is made up of 2 steps. Boiling/Evaporation and Condensation. Task 1: Watch the teacher demonstration. Label the diagram using the words.

Distillation 10:27

Create Evaluate Analyse Apply Understand Remember Apply (L5) Describe in detail distillation using scientific keywords Understand (L4) Be able to describe distillation Demonstrate your Learning for Outcome 1 Keywords:

10:27 Learning Outcome 1: Review Learning OutcomeHow I didTargets Learning Outcome 1: Be able to describe the separating process distillation Level 5 I am working at level.....because I can move up to level…... by …………………… …………………… Go back to your Learning Outcome grid and fill out the ‘How I did’ and the ‘Targets’ column.

10:27 New Information for Learning Outcome 2 Explore and Discover: Visual: demonstration Audio: demonstration Kinaesthetic: class practical

Chromatography is a method scientists can use to separate mixtures. If we had a mixture of sweets in a bag we could use our _________ to separate the sweets into different groups. Can you think of any other mixtures that are easy to separate?

Chromatography can be used to separate a mixture of different liquids. E.g. A mixture of different coloured inks in a felt tip pen factory. A mixture of different bloods found at a Crime Scene. Before they can use chromatography, scientists need to know the meaning of some important scientific words. These words are: Liquid Soluble Chromatography Solute Solvent Chromatogram Solution Dissolve Insoluble

Chromatography is used to separate mixtures of coloured or non-coloured substances that are soluble in the same solvent. A spot of the mixture is placed on some filter paper. In method B, the solvent or is slowly dripped onto the paper. In method A, the solvent is soaked up the paper. The substances in the mixture get separated because the more soluble substance spreads along the paper faster. What is chromatography?

Chromatography can be used to find out if a dye is made up of a single coloured substance or a mixture. Which dyes does the mixture consist of? Dots of known single dyes are placed alongside the dot for the unknown mixture. After the solvent washes through the paper, the pattern of the dyes in the mixture is compared with the single dyes. Identifying dyes in a mixture

There are 4 important words we use when talking about mixtures: Solute, Solvent, Solution and Solubility. Using the example of the Cup of tea: The sugar in the solute. The tea is the solvent. The sweet tea is the solution made. We can say that sugar is soluble in tea or that sugar has dissolved in the tea. Task : Draw a large diagram of a cup of tea and label it using the key words.

10:27 Learning Activities for Outcome 2 You are walking through the island and you find some blood on a tree branch, but it doesn’t seem like normal blood You realise you aren’t alone and suspect there is an alien on the island!!! You decide to investigate the island to obtain some samples p?subcatid=32&subcat=Movies%2FT V+X+-+Z&cat=8http:// p?subcatid=32&subcat=Movies%2FT V+X+-+Z&cat=8

Method You will have four samples to analyse taken from various points on the island. You will carry chromatography and the sample of blood that contains the green colour shows presence of alien life Copy table into book 10:27 SampleSceneColours found AOn the sand BRocky cave CTree branch Dpebble

Method. The apparatus will be set as shown in the diagram below. Cut the paper to make a small flap about 2 – 3 cm this will be placed in the beaker. Fold the paper back along the top of the small flap you have just cut out. Each sample will be placed on a different piece of paper, just above the pencil line using a small cotton bud. Place the paper in the beaker of water making sure the pencil line is above the water level. After 10 minutes remove your chromatograms and allow them to dry in a sensible and safe place. Be careful the pieces of paper DO NOT over lap as this could contaminate your results.

Diagram. Cut along here Sample Pencil line Fold along here Filter paper Beaker Water Sample Pencil line

10:27 Create Evaluate Analyse Apply Understand Remember Apply (L5) Be able to explain chromatography using scientific keywords Understand (L4) Be able to describe chromatography Analyse (L6) Be able to evaluate the method used Demonstrate your Learning for Outcome 2 Keywords:

10:27 Learning Outcome 2: Review Learning OutcomeHow I didTargets Learning Outcome 2: Be able to carry out and explain the process chromatography Level 6 I am working at level.....because I can move up to level…... by …………………… …………………… Go back to your Learning Outcome grid and fill out the ‘How I did’ and the ‘Targets’ column.

10:27 New Information for Learning Outcome 3 Explore and Discover: Visual: demonstration Audio: demonstration Kinaesthetic: demonstration

10:27 Learning Activities for Outcome 3 For chromatography write a conclusion for the results. The conclusion must include the following points What you found out How the process works (include diagrams to illustrate)

10:27 Create Evaluate Analyse Apply Understand Remember Apply (L5) Say what you found out and explain your results using some scientific knowledge Understand (L4) State what you found out from the experiment Analyse (L6) Explain results and use scientific knowledge to explain the process of chromatography using keywords Demonstrate your Learning for Outcome 3 Keywords:

10:27 Learning Outcome 3: Review Learning OutcomesHow I didTargets Learning Outcome 3: Be able to write a conclusion for the experiment using scientific knowledge to explain Level 7 I am working at level.....because I can move up to level…... by …………………… …………………… Go back to your Learning Outcome grid and fill out the ‘How I did’ and the ‘Targets’ column.

10:27 Review ( true or false) Distillation involves boiling, evaporating and condensation Distillation can only be done to purify water Tap water is distilled Solute is the solid that you are dissolving Chromatography is the method in which mixtures are separated Solvent means it can dissolve