Flashcards in Law of Conservation of Mass Deck (26):
Observations made when counting and measuring.
How close your measurement is to the actual (true) value.
Getting the same results with repeated measurements; having more detail in your measurements.
A factor (part) of an experiment that changes
Independent Variable (IV)
The factor that is being tested it is the cause of the change.
Dependent Variable (DV)
The factor that is being observed to see the effect.
A factor of an experiment that should not change. Most parts of the lab should remain constant.
Something you can see, hear, touch, taste or smell and document; cannot be argued; everyone agrees.
A conclusion that you make from your observations; can be argued; not everyone agrees.
The curved surface of a liquid in a glass tube.
Margin of Error
A measurement of the accuracy of the results of a survey.
The act of a solid mixing into a liquid.
Steaming or bubbling up under the action of heat.
An experiment without a lid or top to it.
An educated guess.
A collection of atoms and molecules forming objects.
1) A gas was produced
2) Energy was created
3) A new substance was created
4) It's hard to get back to the original substance
A solid warming up and becoming a liquid.
A liquid getting so cold it turns into a solid.
A system with a lid and container, so no extra mass can ruin the experiment.
Metric System Prefixes
Deka, hecto, kilo, deci, centi, and milli.
A physical substance that occupies space and possesses mass
Changes affecting the form of a chemical substance, but not its chemical composition.
Water that collects as droplets on a cold surface when humid air is in contact with it.
Protect something from harm or destruction.