Back to: Basic Science Primary 5
HEAT AND TEMPERATURE
INTRODUCTION
In this topic, we are going to learn the meaning of heat and temperature. The difference between heat and temperature, the instrument used to measure temperature which is called the thermometer and the various types of thermometer.
WHAT IS HEAT
Heat is a form of energy that is transferred from one body to another because of the difference in temperature.
WHAT IS TEMPERATURE?
Temperature is the measure of how hot or cold something is and it is also the amount of heat in something. It is measured with a thermometer. For example, we can say that boiling water is hotter than a bowl of ice cream but the actual difference in their temperature can only be accurately measured with the help of a thermometer.
DIFFERENCE BETWEEN HEAT AND TEMPERATURE
| HEAT | TEMPERATURE |
| Heat is the form of energy | temperature is the measure of the hotness or coldness of a body
|
| Heat flows from one body to another | temperature is a quantity that shows whether there is heat or not and what direction it will flow
|
| In the transmission of heat, the total amount of heat remains the same | In temperature it does not remain the same.
|
TYPES OF THERMOMETERS
- Clinical thermometers
- Laboratory thermometers
- Thermocouple thermometers
- Mercury thermometers
- Bimetallic thermometers
EVALUATION
Define heat
What is temperature?
SUMMARY
- Heat is just a form of energy while temperature is the degree of hotness and coldness of an object.
- We use a thermometer to measure the temperatures
- We have various types of thermometers for different purposes of temperature measurements.
- Some are clinical or medical thermometers used in hospitals, bimetallic thermometer, mercury thermometer etc.
ASSIGNMENT
- Define: (a) heat and (b) temperature
- List two differences between heat and temperature
- List 5 types of thermometers
- Explain briefly this statement:
“The more renewable power we use the better for our planet and for future generations”
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