Lesson 1
What is the study of matter?
Chemistry
Used by scientists to answer questions.
The Scientific Method
Mr. V is thinking of a number between 1-10. Guess the number
4
The unit of measurement used for length
Meter
Unit of measurement for measuring mass
Gram
A scientist who studies matter and how it changes
Chemist
Is Mr. V the goat? Yes or No
Yes
The amount of space used by an object is...
Volume
The measurement of matter in an object is...
Mass
How close several measurements of an object are to each other is...
Precision
A description without numbers
Qualitative Observation
A number written above the writing line. Also known as an exponent.
Superscript
How close a measurement is to the real value is called...
Accuracy
Ratio showing the relationship between two units
Conversion Factor
Mass divided by volume is used to find...
Density
A variable changed by the experimenter. (The control)
Independent Variable
A shortcut for writing very large or very small numbers
Scientific Notation
Unit
The process of changing units
Unit Conversion
What is the density of an object with 24 grams of mass and 12 mL of volume?
Density = Mass/Volume
2 g/mL
A widely accepted hypothesis that has been tested many times
Theory
A meaningful digit
Significant Figure
How many significant figures are in the number 301?
3 Significant Figures
The unit of measurement used to measure temperature
Degrees Celsius
A unit made when multiplying or dividing other units is called...
Example: 12 ft x 12 ft = 12ft2
Derived Unit