WEEK/TERM: THIRD TERM /WEEK 7
CLASS: Grade 3
DATE: 26th June, 2020
SUBJECT: Basic Science
TOPIC: Heat and Temperature
Notes for the Pupils
Heat means make hot or warm, it is the quality of being hot. Heat is a form of energy. It flows from one place to another. Temperature is the degree of hotness or coldness of a substance. It is measured in degrees with a thermometer. Heat causes a change in temperature. When the body is hot, the temperature is high and when the body is cool, the temperature is low.
A thermometer is a standard instrument used to measure temperature.
Mercury thermometers are commonly used in measuring ordinary temperature.
Types of Thermometer
- Liquid-in-glass thermometer
- Maximum and minimum thermometer
- Clinical thermometer
- Digital thermometer
Note: The normal human body temperature is 370C
Units of temperature
- Celsius Scale 0C
- Fahrenheit scale 0F
- Kelvin scale K
Celsius scale is from 00C to 1000C it is the most commonly used.
Fahrenheit scale is 320F
Kelvin scale from 273K to 373K
Differences between heat and temperature
|1.||Heat is a form of energy||Temperature is the degree of
hotness or coldness of the body
|2.||Heat causes the change in
degree of temperature.
|Temperature is heat generated.|
|3.||Unit of measuring it is
calories and joule in SI unit
|Temperature measured in degree Celsius, Kelvin or degree Fahrenheit|
|4.||Heat is obtained from solar energy||Temperature is obtained when a substance is cold or heated.|
|5.||Heat is the change that flows.||Temperature determines the direction of the heat flow.|
- Name any three types of thermometers.
- Write the units and symbols of temperature.