Accuracy and Precision
The Nature of Science
What is Matter?
Properties of Matter
Changes of Matter
100
This is defined as proximity to the accepted value.
What is accuracy?
100
Physical science is broken into these two branches.
What is chemistry and physics?
100
This is anything that takes up space and has mass.
What is matter?
100
These properties are easy to observe.
What are physical properties?
100
These changes do not change the identity of the substance.
What is a physical change?
200
This is defined as the proximity of data values to each other.
What is precision?
200
These are the four main jobs of a scientist.
What is investigate, plan, observe, and test results?
200
This is formed when multiple elements combine.
What is a compound?
200
Density is classified as this type of property.
What is a physical property?
200
Dissolving is classified as this type of change.
What is physical change?
300
230 has this many significant figures.
What is two?
300
This describes multiple sets of observations and experiments.
What is a scientific law?
300
This substance is made from only one element or compound.
What is a pure substance?
300
This is the ability of a substance to react with oxygen and burn when exposed to a flame.
What is flammability?
300
This occurs when a substance changes from one substance to another.
What is a chemical change?
400
0.002 has this many significant figures.
What is one?
400
This explains the observations of one experiment or model.
What is a scientific theory?
400
This is made of multiple pure substances combined.
What is a mixture?
400
These properties can only be observed during a reaction.
What is a chemical property?
400
True or false: Chemical changes can be detected.
What is true?
500
0.00200100 has this many significant figures.
What is six?
500
True or false: Scientists always retest experiments.
What is true?
500
This is the smallest unit of a substance with its physical and chemical properties.
What is a molecule?
500
These properties help identify a substance.
What are characteristic properties?
500
True or false: Chemical changes can be reversed by physical changes.
What is false?
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