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Learning Intentions
You can make measurements with appropriate scientific tool and record data with appropriate unit.
You can make measurements with proper precision for measuring tool being used.
You can apply the rules for determining significant figures to solve both addition, subtraction, multiplication and division problems using measured data.
You can calculate density using measurements of mass and volume and plugging values into the density equation.
Content Standards being covered:
Student can identify metric units for common measurements used
in Chemistry and accurately makes conversions using metric system.
20. All units for science follow the SI system (International System of Units)
The SI unit for energy is Joules (J), pressure is Pascal (Pa) or atmosphere (atm),
temperature is degrees Celsius (○C) or Kelvin (K), mass is grams (g), volume is
(mL), distance is meters (m)
Student can make and
record measurements effectively using measuring tools and then apply that data
appropriately in calculations.
25. a) Make measurement with appropriate scientific tool.
25. b) Record measurement with appropriate unit.
25. c) Measurement should be made with precision given for the measuring tool
being used.
26. In determining significant figures of a number, a figure (number) is always
significant if it is a unit other than zero
27. A zero is always significant if it is sandwiched between non-zero digits
28. A zero is significant if it is at the end of a number and on the right side
of a decimal point
29. When adding and subtracting, count the number of significant figures only on
the right side of the decimal to determine proper number to include in answer.
30. When multiplying and dividing, count the total number of significant figures
in each number to determine proper significant figures to include in answer.
Students can identify and evaluate types and phases of matter, physical and chemical properties of matter, various changes in matter and how those changes occur.
34. Density measure the amount of matter found in a certain amount of space and is measured in g/mL
Habits of Mind/Life skills being covered:
Gathering Data Using all Senses
Journal Entry:
What questions do you have about significant figures? the questions from homework?