Vocabulary
What is a hypothesis?
An educated guess using background information. Should be written as "If the IV is (increased/decreased), then the DV will (increase/decrease) because .
What is an independent variable?
The independent variable is what you control, and it's done in the setup.
What are the advantages of the metric system?
It is the international standard, it has a decimal system, is easier to calculate, and is much simpler than the English system.
Which graph is used to show data that changes with time?
Line graph
What is scientific notation?
It is used to get rid of zeros in very big or very small numbers.
What is a testable question?
Something you can experiment on, get the same answer, is physically manipulated, and requires the experiment to be solved.
What is the independent variable in the following question? How will a plant grow differently if you give it different amounts of sunlight?
The amount of sunlight you give a plant.
What are the seven units of measurement in the metric system?
Kilo, Hecto, Deka, Basic Unit, Deci, Centi, and Milli.
Which graph is used to compare single values of many items?
Bar graph
What is 1,409,000 in scientific notation?
1.409 x 10^6
What is density?
How compact matter is.
To find what variable do you ask, "What am I measuring or looking for?"
Dependent variable
160 cm is how many mm?
1600 mm
Which graph is used to show parts of a whole?
Pie graph
What is 0.000000043 in scientific notation?
4.3 x 10^-8
What is a control variable?
The thing that needs to stay the same throughout the experiment.
What is the dependent variable in the following question? How far will a paper airplane fly if you change how much it weighs?
The distance the paper airplane travels.
141 g is how many kg?
.141 kg
What does DRY MIX stand for?
D=Dependent, R=Responding, Y=Y-axis, M=Manipulate, I=Independent, X=X-axis
What is the density of an object with a volume of 50 cm cubed and a mass of 20 g?
0.4 g/cm cubed
What is a dependent variable?
The thing that responds to the changes of the independent variable.
To find which variable do you ask, "What am I changing?"
Independent variable
Compare 75 cm to 7 m using <, >, or =.
75 cm < 7 m.
How do you calculate a percent on a pie graph?
Part (individual category)/Whole (total amount).
What is the density of an object with a mass of 32 g and a volume of 13 mL cubed?
2.46 g/mL cubed