Vocabulary
The pattern of investigation procedures
a. Scientific methods
b. hypothesis
A. Scientific methods
The amount of space occupied by an object
A. Mass
B. Volume
B. Volume
The standard by which test results can be compared
A. Control
B. Model
A. Control
True or False and explain your answer:
Models aren't helpful when scientists needs to visualize concepts.
False: Models are helpful when scientists needs to visualize concepts.
Statement about what happens in nature and that seems to always be true
A. Scientific law
B. theory
A. Scientific law
Tests the effect of one thing on another using a control
A. Experiment
B. Constant
A. Experiment
Why do scientists ask questions and perform observations?
A. To learn more about the natural world.
B. To fulfill their job responsibilities.
C. To conduct experiments
A. To learn more about the natural world.
A quantity that can have more than a single value
A. Theory
B. Variable
B. Variable
True or False
The International System of Units (SI) is accepted and understood by scientists around the world. It is also used to provide a standard of measurement and to reduce confusion.
True
An exact quantity that people agree to use to compare measurements
A. SI (International System of Units)
B. Standard
B. Standard
A factor that does not change
A. Control
B. Constant
Anything that takes up space and has mass
A. Matter
B. Volume
A. Matter
A. scientific law
B. bias
B. bias
True or False
A theory is a possible explanation for a scientists observations.
True
A. Model
B. Bias
A. Model
A variable the changes according to the changes in the other variables
A. independent variable
B. dependent variable
Scientists use scientific methods to test which of the following?
A. experiments
B. hypotheses
C. Theories
B. hypotheses
A variable that is changed to see how it will affect the dependent variable
A. independent variable
B. dependent variable
A. Independent variable
True or False and explain your answer or give an example:
The size of an object determines the unit you would use to measure it
True
Explanation based on knowledge gained from many observations and investigations
A. Theory
B. Experiment
The mass per unit volume of a material
A. Density
B. volume
A. Density
Conversion Factors involve using a ratio equal to
a. 0
b. 3
c. 1
c. 1
A possible answer to a question or a possible solution to a problem based on what you know and observe
A. hypothesis
B. theory
True or False
Scientific laws do not explain why things happen
False:
Scientific laws do explain why things happen
A measurement of the quantity of matter in an object
A. Mass
B. Matter
A. Mass