Air Temperatur

e4th Grade Science

Review and Revisit

What is weather?

The condition of the lowest level of the atmosphere

(blanket of air that surrounds the Earth) at a certain time and

place

Review and Revisit

What is temperature?

Measure of the amount of energy in a substance

In short…how hot or cold something is

Review and Revisit

What is a thermometer?

Tool used to measure temperature

Thermometer

From the Greek, therme means “heat” and metron means “measure”.

Also…the suffix –meter means “a device for measuring” something

Review and Revisit

Measuring TemperatureWhat are the two temperature scales?

Celsius and Fahrenheit

Measuring Temperature…Do you know?

What is the freezing point of water in degrees Fahrenheit and Celsius?

Water freezes at 32 degrees Fahrenheit and 0

degrees Celsius.

Measuring Temperature…Do you know?

What is the boiling point of water in degrees Fahrenheit and Celsius?

Water boils at 212 degrees Fahrenheit and

100 degrees Celsius.

TemperatureDegrees

FahrenheitDegrees Celsius

Freezing Temperature

Boiling Temperature

Room Temperature

32 degrees 0 degrees

212 degrees 100 degrees

68 degrees 20 degrees

Cool FactCrickets usually chirp more quickly when the temperature goes up and more slowly

when the temperature decreases.

What you can do…

Count the number of chirps in 15 seconds, then add 37 to that number. The total will be roughly equal to the actual temperature

in degrees in Fahrenheit.