Temperature Tools
Heat and temperature
are not the same same thing.
Heat:
When two objects with
different temperatures are in contact, energy goes from the hotter
object to the colder object. Heat is the amount of energy that
transfers from the hotter object to the colder object.

Temperature:
Temperature is the
measurement of the speed of molecules vibrating in a material.
Higher temperatures mean the molecules are moving, vibrating,
and rotating faster and with more energy.

Everything takes a
different amount of heat to increase its temperature. It usually
takes less heat to raise the temperature of a metal than for other
materials, like water or air.
Temperature
Tools
In the United States,
temperature is measured in degrees Fahrenheit (F). In other countries
which use the metric system, temperature is measured in degrees
Celsius (C).
Outdoor Thermometer
The outdoor thermometer uses the expansion
and contraction of a liquid to measure temperature. The liquid
in the bulb (usually ethyl alcohol with colouring added) expands
9gets bigger) when it is warmed and is forced up the narrow glass
tube. The more the liquid cools. It contracts (gets smaller) and
drops in the glass tube.

Clinical Thermometer
Another thermometer is the clinical thermometer.
a liquid to measure temperature but it must be sensitive to very
small changes in temperature. it has to be able to measure temperatures
only within a few degrees of normal body temperatures (98ºF).


Thermostat
A thermostat can be used to measure temperature
in an appliance, such as a furnace, or in a room. It can also
switch appliances on or off at a preset temperature.

Thermocouple
A thermocouple is
a thermometer that electricity to measure instead of a liqued.
A thermocouple contains two wires, each of a different metal,
that are joined together at one end. The other ends of the wires
are connected to a meter that measures electricity. By measuring
the amount of electricity that flows through the meter, you can
measure the temperature of the metal wires.
