Introduction lesson 3

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					                                                                              Science
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           Module: Introduction        Lesson Title: Drawing and using equipment           Lesson: 3

             Connect Activity:
             ‘Can you choose suitable apparatus?’ (1) worksheet (1.4a) on whiteboard.
CONNECT




              Pupils match apparatus to statement. Discuss ideas.
             VAK: VAK
             Issues from Previous Learning:
             Some pupils may be familiar with some lab equipment but drawing it is new to most. Majority of
             students will not know how to use a Bunsen burner safely.
             Learning Objectives:                                  Learning Outcomes:
             All pupils will:                                      All pupils will be able to:
             be able to recognise simple lab equipment and be
                                                                  Recognise and name standard lab equipment
             able to name them and safely use a Bunsen
                                                                  drawings and identify the parts of the Bunsen
             burner.
                                                                  burner and be able to use it safely
             Most pupils will:
                                                                  Most pupils will be able to:
             be able to draw good scientific drawings of lab
              equipment and explain what they would use            Neatly draw and label standard lab equipment
              certain pieces of equipment for.                     using a pencil and ruler and explain what they
             Some students will:                                   would use certain pieces of equipment for.
             be able to draw the demonstration equipment           Some pupils will be able to:
             without guidance and describe how they know
             where the flame is the hottest.                       Neatly draw and label standard lab equipment
                                                                   using a pencil and ruler without guidance and
                                                                   describe how they know where the flame is the
                                                                   hottest.
             Introduce New Information:
             Show pupils examples of lab equipment and build on their ideas to show them how to draw each
             piece of equipment, with a pencil and a ruler. Show pupils the equipment set up to produce hydrogen
             and explain the ‘squeaky pop’ test.
ACTIVATE




             NB. STRESS how to do the test for hydrogen as in exams ‘squeaky pop’ test as an answer is
             insufficient.
             Each pair to look at a Bunsen burner – no fiddling with the gas/gas taps etc.
              explain what the main parts of the Bunsen are for
                  collar
                  rubber tube
                  base
                  air hole
                  barrel
                  heatproof mat (under the Bunsen when ever one is in use)
             Go through safety with the Bunsen:
                 1. heatproof mats
                 2. hair tied up
                 3. ties tucked in
                 4. stand up with chairs under the bench
                 5. safety flame when not in use
             Demonstrate how to light a Bunsen – emphasise that the position of the air hole affects the colour of
             the flame.
             Emphasise the importance of risk assessments, go through risk assessment grid template.
             Also go through measuring length, volume and temperature after pupils have used the Bunsen
             burner before they heat the water.
             Emphasise important of recording observations in a clearly labelled results table.

             VAK: VAK
              Demonstrate:
              Pupils to draw standard lab equipment and demo equipment and label. STRESS the use of
              pencils and rulers!
              Show pupils the equipment set up to produce hydrogen and explain the ‘squeaky pop’ test. Pupils to
              carry out ‘squeaky pop’ test.
              NB. STRESS how to do the test for hydrogen as in exams ‘squeaky pop’ test as an answer is
              insufficient. Optional sheets for drawing diagrams (1.4c, 1.4d, 1.4e)

              Pupils swap books and peer assess drawings for accuracy and presentation.
              ______________________________________________________________________
              Show pupils a diagram of a Bunsen burner. Use worksheet 1.5a to help, show on smart board.
               pupils to observe the flame as the air hole is opened and closed, what happens to the flame?
                  Colour
                  Height of flame
                  Sound
DEMONSTRATE




              Pupils to record the results in a table

              Pupils to put on their goggles and set up their Bunsen on a heat proof mat and set the air hole to the
              correct position for lighting the Bunsen. Check each pair then allow them to light the Bunsen
               give each pair some tongs and a piece of clean porcelain, heat it first in the blue flame, then in the
              yellow flame for about a minute each time and record any observations. Should be clean in blue
              flame and sooty in yellow flame

              Pupils now to heat a piece of nickel wire in the flame, start with the yellow, then the blue flame. Move
              the wire around in the flame, write down what they see. They should find that the top of the cone in
              the blue flame is the hottest place.

              Pupils heat a beaker of water and record the temperature in pairs. Pupils attempt to write risk
              assessment (see grid template).AF4.4

              Extension: Pupils attempt to draw apparatus set up as in connect activity.
              Encourage pupils in pairs to discuss what piece of equipment they would use for different
              experiments. Give pupils examples of practicals and ask what equipment they would select,
              encourage them to justify their reasons..

              VAK: VAK

              Review:
              Select a pupil to draw a piece of equipment on the main board, other pupils use mini whiteboards to
              name the equipment. Select another pupil for another piece of equipment and so on.
CONSOLIDATE




              VAK: VAK
              Assessment for Learning:
              Accurate drawings and labels, Questions and answers.
              Practical skills, ability to work safely and in groups. Ability to accurately record results. Review activity

              Homework
              Word test. Match words and meanings and learn spellings and meanings (1.4f) OR Mr Bunsen’s
              Burner worksheet 1.6d(research)
  Resources:
  Demo : a beaker, flask, filter funnel, measuring cylinder, Bunsen burner, gauze, heatproof mat,
  thermometer, test tube and boiling tube. Demo of equipment to make hydrogen and 15 x boiling
  tubes, splints and matches. Class set: Mini whiteboards, pens and rubbers.
  15 x tongs, 15 x clean pieces of porcelain, 15 x nickel wires on handles. 15 x 250ml Beakers 15 x
  Thermometers, 15 x Stop clocks, matches and splints.

  Connect activity (1.4a) on whiteboard. Guidance sheet for teacher use only 1.4b. Optional sheets for
  drawing diagrams (1.4c, 1.4d, 1.4e). Word test (Hwk, 1.4f).

  The Bunsen burner labelling sheet 1.5a, The Bunsen burner sheet 1.5b (reading for information),
  Bunsen burner flames worksheet 1.5c (extra help) and Mr Bunsen’s Burner worksheet 1.5d
  (research). 5 steps to a risk assessment and risk assessment grid.




ICT                                                 Cross-Curricular links
Research hwk.                                       Citizenship – group work and safety.

Literacy (including key words)                      Numeracy
Labelling diagrams                                  Measurement on measuring cylinder. Using
                                                    measuring cylinder accurately and thermometer.
beaker, flask, filter funnel, measuring cylinder,
Bunsen burner, gauze, heatproof mat, test
tube and boiling tube
Research hwk
Bunsen burner.
The bunsen burner sheet 1.6b (reading for
information)

Investigative Skills                                Careers
Accurately drawing and labelling equipment.         Working in a lab e.g. research.
Using measuring cylinder accurately and
thermometer. Group work. Which flame is the
hottest on the Bunsen burner?

				
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