Scientific Method
The "cause" of the experiment, whats being changed
Independent Variable
Proper technique for smelling chemicals.
Wafting
A type of data that involves descriptions.
Qualitative
SI Unit for mass
Kilograms or kg
How many sig figs are in 0.0089?
2
Halia is wanting a new computer. She currently has a Chromebook and wants to know if a Macbook is better. What is the control group?
Chromebook
Control: this group is compared to the experimental group, to see if the new variable works better.
Name the three protective gear you need for a lab.
Gloves, closed-toed shoes, and goggles.
Amount of matter in an object.
Mass
Convert 93 degrees celsius to Fahrenheit.
199.4 degrees F
How many sig figs are in 0.0000789?
3
Audrey wants to know if students who eat breakfast before taking a test help improve the student's test grades. What is the independent variable?
Eating breakfast
What are the two things you need to do BEFORE starting a lab?
Read all directions and make sure you have all your materials.
Transferring liquids in small precise amounts.
Pipette
Often measured with a meter stick or a ruler.
Length
Is this in standard notation?
5.7756 x 10^5
577,560
Panda Express is testing to see if canola oil fries chicken better. List two constants in this experiment.
- Amount of oil, brand of oil, type of chicken, how much chicken, cooking time
Constant: things that are kept the same in an experiment
List three things that you shouldn't do in a lab?
Eat or drink, play around, use broken glass.
Technique to rewrite very large or very small numbers into a format that is easier to use.
Scientific Notation
Convert 202 cm to m.
2.02
What is the number 0.00000002 in Scientific Notation?
2 x 10^-8
Come to the board and write the number in scientific notation.
Testable statement about the relationship between two or more variables
Hypothesis
A student drops a glass test tube on the ground. List at least two things the student should or should not do.
- tell the teacher
- do no clean up the glass on their own
- no glass in the trashcan
How specific the measurement is
Precision
Convert 68 g to kg
0.068
What is 2001 in Scientific Notation?
2.001 x 10^3
Come to the board to put this number in scientific notation!