Changing States of Matter
When vapor is cooled, and it changes state from a gas to a liquid.
Condensation
The melting point of water is...
0 degrees celcius
Wind currents are an example of:
Convection
R-value refers to the quality of:
Insulation
What is the difference between heat and temperature?
Heat is a type of energy a substance can lose or gain. Heat energy is a form of kinetic energy, which is energy in motion.
Temperature is the measure of how hot or cold a substance feels. Measurement tools, such as thermometers measure the average amount of kinetic energy and relate it to a scale.
When liquid is cooled, and it changes state from a liquid to a solid.
Solidification
The boiling point of water is...
A frying pan is an example of:
Conduction
Heat Capacity is measured in:
Calories/Joules
How does particle theory explain the changes of state?
All matter is made up of tiny particles. These particles are always moving, and the particles have bonded to each other. Depending on the state of matter, there is more or less space between the particles. Solids have little space, liquids have more, and gases have less. Therefore, substances can move between states.
When heat is added to a solid, and it changes state to a liquid.
Fusion
The temperature scale for weather in Canada is
Celcius
The sun is an example of:
Radiation
Water has a __________ heat capacity
High heat capacity
Explain one of the traditional homes we studied. How was it constructed? How did the construction aid or prevent heat transfer?
Tipis
• Pole construction covered in animal hide
• Door faced to the East to prevent heat transfer by wind
• Adjustable hide covering, with hole at the top for ventilation
• Hide could be raised in the summer for extra ventilation
• Circle construction to catch good spirits
Sod Houses
• Early homes of the European settlers
• Wooden frame with thick sod walls cut from prairie soil
• Walls were three to four feet thick, they kept heat in during Winter and
prevented Heat from the sun from penetrating the shelter in Summer
• These shelters were temporary and often had poor construction
• Prone to the elements and pests
When a solid directly changes state to a gas, skipping the liquid state.
Sublimation
This temperature scale features absolute zero, where there is no movement:
Kelvin
This type of heat transfer travels using waves; the transfer can occur without direct contact:
Radiation
Sand has a ________ heat capacity
low heat capacity
What are three kinds of insulation commonly used?
Fibreglass, Cellulose, Mineral Wool, Polystyrene, and
Polyurethane Foam
When a gas changes state to a solid, skipping the liquid state.
Desublimation
America uses a different temperature scale, which is...
Fahrenheit
The transfer of heat or electricity through molecules and direct contact
Conduction
Heat capacity is an object's ability to _______ heat energy
store
Who is the best teacher in the entire world?
Mrs. Scherr