V
Tempurature
Measure of hotness or coldness of a substance, measured with a thermometer
Open System
a system that interacts with other systems by having inputs or outputs. Matter can enter from or escape the surroundings
conduction
Transfers of heat through direct contact between objects or particles of matter. :-)
EX: touching a hot pot
Mean
A quantity that has a value in the middle (average) between those of the extreme members of some set.
final
The ending, last.
Thermometer
Instrument for measuring temperature, a narrow glass tube with lines to mark changes, has a bulb containing alcohol
Closed System
matter is not allowed to enter or leave the system
Convection
Heat transfer when there is a difference in temperature between two parts of a liquid or gas. The hot part of a fluid rises, and the cooler part sinks.
Example: lava lamp
Variable
Any factor that can be measured within an experiment, allowing scientists to analyze how factors influence each other.
increase
Become larger in size or degree.
A temperature increase from 10oC to 20oC gets HOTTER.
Celsius
Celsius is a unit of temperature measurement in the International System of Units (SI) uses the symbol C'
Insulation
to cover, line, or surround with a material that reduces or stops the movement of heat, electricity, or sound.
Kinetic Energy
The energy of motion.
Example: when you throw a ball
Valid
Accurate, precise. The extent to which a test measures what it claims to measure.
Decrease
Become smaller in size or degree.
Evaporation
the process that changes liquid water to gaseous water vapor
radiation!
Heat transfer where heat waves are emitted that may be absorbed, reflected, or transmitted through a colder body. Example: Sun heats the earth by electromagnetic waves.
particles
A tiny portion of matter that can be described by physical or chemical properties.
Error
A mistake. An inaccurate or incorrect action, thought, or judgement
Condensation
the process in which water vapor in the air is transformed into liquid water
potential energy
Stored energy that an object has because of its position, it has the potential to move.
Example: a ball sitting on top of a hill.
equalibrium
A condition where all factors are balanced.
Draw a conclusion
To use facts to make a judgment about what is true, likely to happen, or correct. (NOT drawing a picture!)