HEATING AND COOLING (TEMPERATURE AND THERMAL ENERGY) LESSON ONE

HEATING AND COOLING

Aims1.To know what temperature is

2. To distinguish between heat and temperature. 3. To recognise the need for temperature scale

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3 MINUTES STARTER ACTIVITY Students to have general discussion on

the concept of "temperature."

Volunteers to feed back answers after 3 minutes

• What is temperature?

• How do things get hotter or colder

Task is a survey of student's perceptions/understanding of concept of temperature and heatwww.whysciencetutors.com

Copy out and process the key concepts in the information by

rearranging or connecting them.

• As substances get colder• As substances get hotter• The molecules vibrate less• The molecules vibrate more• Temperature increases• Temperature decreases

This task encourages students to think creatively through reasoning and processing information.


Definition of Concepts

We are just beginning to realise the differences between heat and

temperature

• From your answers see if you can decide what the unit of

• 1. Heat and 2. Temperature are

• It is important we find a way of distinguishing between temperature and heat

• Checking progress through their knowledge and understanding


GETTING HOT OR COLD

• Can you think of examples of heat transfer in everyday experiences?

• What happens to the temperature of a glass of fizzy drink when you put an ice cube into it?

• What happens to the temperature of the ice cube in the glass of fizzy drink?

This task considers the idea that energy transfer results from a difference in temperature. This is an important concept for the students.

TEMPERATURE AND HEAT

• Temperature is not the same thing as heat –True or False

• Explain the difference between heat and temperature.

The unit also helps pupils distinguish heat (energy) from temperature.


TEMPERATURE SCALE

Temperature Object

100 Human Body

0 Classroom

37 Ice

27 Boiling point of Water

1. Copy the Table below and rearrange the information provided in the column titled Object

2. Suggests a unit for the column titled Temperature

Developing numeracy skills through obtaining, recording and analysing data


TEMPERATURE SCALESFrom the scientific point of view how important are temperature

scales


AMOUNT OF HEAT ENERGY IN A SUBSTANCE

• Your task is to draw the following 1)a beaker full of water 2) a

bucket of full of water Can you guess why it will take less

than 6 minutes to heat the water in the beaker to 40 degree Celsius and nearly an hour to heat the water in the bucket to 40 degree Celsius.



• The amount of heat energy in a substance depends on three factors.

Can you guess what these factors are



• The amount of heat energy in a substance depends on three factors. These are

• The mass of the substance• What it is made from• The temperature of the substance


HOMEWORK

• Draw arrows showing the direction of energy flow or heat transfer in the following

• A glass of fizzy drink when you put an ice cube into it

• A cup of tea on a tableResearch the following:

1) Conduction 2) Convection 3) Radiation


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HEATING AND COOLING (TEMPERATURE AND THERMAL ENERGY) LESSON ONE

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Transcript of HEATING AND COOLING (TEMPERATURE AND THERMAL ENERGY) LESSON ONE