|
| |
 |
 |
|
|
|
|
Science topics ages 10 - 11
Changing circuits
Curriculum relevance
| Online lesson plan
Offline lesson plan |
Worksheet |
Activity |
Quiz
Offline lesson plan
Objectives
Know there are conventional symbols to represent the components in circuits
Understand how to use these symbols to draw diagrams of circuits
|
|
|
| |
National Curriculum
England: Key Stage 2, Science, Sc4 1c
Wales: Key Stage 2, Physical processes 1.5
Northern Ireland: Key Stage 2, Physical processes, Electricity, b
Scotland: 5-14 Guidelines, Science, Properties and uses of energy Level D
|
|
|
| |
Resources required
Copies of the Changing circuits worksheet printed from the Science Clips website
Circuit components such as wire, cells, two batteries of different voltages, lamp, switch, motor, buzzer, LED, resistor
Some different torches
A set of circuit diagrams, each with a mistake made on purpose
|
|
|
| |
Teaching activities
Introduction
Remind children that electric circuits can be drawn in diagrams using symbols. Explain there are agreed ways of drawing these symbols so that circuit diagrams can be read by lots of different people in order to make electrical devices or to mend them. Show children each of the circuit components. Draw the symbols on the board. Can they remember which symbol is used for which component? Revise the difference between a battery and a cell.
Activities
Make a simple circuit with a bulb. Ask the children to describe the circuit in words. Draw on the board how the circuit is shown in a circuit diagram. Alter the circuit slightly. Again, ask the children to carefully describe the circuit in words. Then, in pairs, ask children to draw the circuit diagram for the altered circuit. Repeat with different combinations in the circuit so children experience using each of the different symbols.
Hand out individual copies of the worksheet. Ask children to look at each of the circuit diagrams carefully and write if or how the bulb would light in each case.
Plenary
Go through the worksheet. Then display the circuit diagrams where one of the symbols in each has been wrongly drawn. Can they spot the error?
|
|
|
| |
Extension
Ask children to draw circuit diagrams for the different torches, making sure they represent the cells or batteries used correctly.
|
|
|
| |
Suggested homework
Ask children to find examples of circuits in manuals at home, e.g. for the car, the washing machine or other electrical devices. Even though they are much more complex than the simple ones we have looked at, can they recognise any of the symbols we have used?
|
|
 |
|
| |
|
|
|
|
