Mad Methods
Whats the matter?
Lets get Physical...& Chemical
Measuring Things
Notation..whats the Significance?
100
This is when you use your five senses to define a problem.
What is an observation
100
Two part Answer - 1. this is the amount of matter in an object 2. this is the force of gravity acting on an object
1. What is Mass 2. What is Weight
100
these can be observed without changing the identity of the substance
What are physical properties
100
These are descriptive observations including: hot, cold, heavy, light, big, blue, furry
What are Qualitative Data
100
4.25 E -3 is this number expressed in scientific notation
What is .00425 in scientific notation
200
this is a reasonable explanation for an observed phenomenon
What is a hypothesis
200
This has a uniform and definite composition
What is a pure substance
200
these can tell us how a substance will react with other substances
What are chemical properties
200
These are measurements taken that involve some type of numerical value
What are Quantitative Data
200
505.00 has this many sig. figs
What is 5
300
this involves a procedure to test a hypothesis
What is an experiment
300
This is when two or more substances are physically mixed together
What is a mixture
300
examples of this are rusting, burning, corrosion, digestion, respiration, decaying
What is a chemical change
300
This is a measure of how close a measurement is, to the accepted value
What is accuracy
300
this is 5.15 + 15.050 rounded to the correct number of sig figs
What is 20.20
400
This is a well tested explanation for a broad set of observations
What is a theory
400
These two things are both considered pure substances
What are elements & compounds
400
examples of this are phase changes
What is a physical change?
400
this describes how close a set of values are to each other, it expresses repeatability.
What is precision
400
this is 2.00 x 5.000 rounded to the correct number of sig figs
What is 10.0
500
this is used to describe a natural phenomenon which has been tested over a long period of time under different conditions
what is a Law
500
solutions and alloys are examples of this type of mixture, where the different parts can not be seen
What is a homogeneous mixture
500
this states that in any chemical or physical change, matter cannot be created or destroyed
What is the Law of conservation of matter
500
Respectively, these are the units for: 1. mass 2. distance 3. volume 4. temperature
What are the : 1. gram 2. meter 3. liter 4. degrees celsius
500
0.00250 has this many sig figs
What is 3 sig figs
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