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Schemes of Work
QCA

Science at key stage 3    (Year 8)

Unit 8I: Heating and cooling
Section 5: c. How do things get hotter or colder?

QCA

Objectives

Children should learn:
  • that most metals are good thermal conductors
  • that poor thermal conductors are called insulators
  • how to use ICT to monitor temperatures

Activities

Outcomes

Children:
  • Ask pupils to work in pairs to suggest why certain materials are used in cooking utensils, eg a wooden spoon (or saucepan handle) and a metal saucepan base. Demonstrate the difference in rate of conduction of heat, eg using temperature probes and dataloggers to determine temperature of the tip of a rod and monitor the rate of temperature rise; temperature probes along length of rod. Use the demonstration to classify materials as good or poor thermal conductors.
  • classify materials as conductors or insulators of heat
  • interpret temperature data from datalogger

Points to note


Sections in this unit

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This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.
1. a. What's the temperature?
2. b. What's the temperature?
3. a. How do things get hotter or colder?
4. b. How do things get hotter or colder?
5. c. How do things get hotter or colder?
6. d. How do things get hotter or colder?
7. e. How do things get hotter or colder?
8. a. How do materials change when they are heated and cooled?
9. b. How do materials change when they are heated and cooled?
10. c. How do materials change when they are heated and cooled?
11. d. How do materials change when they are heated and cooled?
12. e. How do materials change when they are heated and cooled?
13. a. How can we reduce energy waste?
14. b. How can we reduce energy waste?
15. Checking progress
16. How can we explain change of state?
17. Reviewing work