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VOCAB
Graphing
Lab Report
Conversions
Sig Figs and Scientific Notation
100
This means how EXACT your answer can be
Precision
100
This type of graph is best used to show parts of a whole.
Pie graph
100
What are 2 things that need to be in the introduction of a lab report?
1) Purpose question (what question are you trying to answer in the lab?) 2) Background information of variables used 3) Hypothesis (if this happens, then this will happen)
100
What are the order of the metric system prefixes?
Kilo (k) Hecto (h) Deka (da) One (o) Deci (d) Centi (c) Milli (m)
100
Do significant figures show precision or accuracy? Explain.
Significant figures show precision because it's how EXACT your answer can be....not how close you are to the target value.
200
This explains WHY an observation in nature occurs
Theory
200
This is the axis the DEPENDENT variable is placed on.
y-axis
200
In what section do you have a data table or a graph?
The results section
200
What are the steps you should go through in a metric conversion when asked to show your work?
1) Write your measurement or given value 2) Set up conversion x (-----) and like units opposite 3) Set higher prefix from ladder as 1....multiply by 10 each step of the way down the ladder 4) Solve! Cancel like units. Multiply across top/ Divide by all numbers on bottom
200
How many significant figures are you allowed to have in your answer?
As many as the least precise measurement from the problem..."a chain is only as strong as its weakest link."
300
Give 2 ways in which a theory and a law are similar
1) Both supported by large amounts of evidence 2) Both are constantly being tested 3) Both can be changed in light of new evidence 4) Equally important to science 5) One is not more true than the other
300
Consider the following situation: I want to find out who can get to the center of a Tootsie Pop the quickest. I gave 3 participants (one 4 year old, one 24 year old and one 44 year old) a cherry flavored Tootsie Pop. We took the mass of the Tootsie Pop before they started licking the sucker and it was 50 grams. They were instructed to lick the sucker once every 2 seconds for 1 minute (30 times/minute). After one minute, we took the mass again to see what changed. What is the independent variable in this scenario?
The ages of the participants
300
In what format must your procedure be written in?
Paragraph format
300
If you are moving from grams to hectograms, what should happen to your starting measurement? Why?
The number should get smaller--You need MORE of a smaller unit, and LESS of a larger unit. (In this case, hecto is bigger than the base unit gram, so the number should get smaller).
300

How many significant figures are in the following number: 4.0300?

5
400
Give one way in which mass is different than weight
Weight is a measurement than can vary depending on location and is influenced by the amount of gravity an object is experiencing. Mass does not change depending on location. Units also vary because weight is a force (Newtons) and mass is a measurement of matter (kilograms).
400
List 4 things that should go on every line graph
1) Title 2) Axis Labels 3) (Units) 4) Line 5) Scale
400
If you are doing a lab to see what temperature of liquid water makes plants grow the best, and you find that room temperature tap water works better than cold (45 degrees) or hot (115 degrees) water....what is some future research you could do based on your results?
Find out if room temperature works better than hot or cold water for washing laundry or if it boils more quickly.
400
How many dm in 3.5 hm?
3,500 dm
400
Give an answer to the following problem in the correct number of significant figures, with the correct unit. 3.75 m x 2.5487 m x 0.0023 m
0.022 m^3
500
Give an example of a measurement that is accurate, but not precise for 200 grams.
200 grams.
500
What does a line graph allow you to do that other types of graphs do not?
Estimate for values that are not listed--Line graphs show continuous change
500
In what section do you analyze your data?
Discussion
500
How many inches in 46 mm? 1 in = 2.54 cm
1.8 inches
500
Write the following number in correct scientific notation: -0.000457
-4.57 x 10^-4