Vocabulary
Define: Hypothesis
A possible explanation or answer to a problem
True or False: Measurements made by hand are more accurate than those made by machines.
False
What is quantitative data?
Data involving numbers
True or False: After completing an experiment 1 time, your results are perfect and you are done with your investigations.
False, you must have multiple trials to ensure that your data is accurate and valid.
On a graph, a straight line represents a ...
A linear relationship
Define: Data
Any piece of information acquired through observation or experimentation
True or False: The meter is the standard unit of measurement for distance
True
What is qualitative data?
Data involving words
What do you do after asking a question?
Create a hypothesis.
What does graphing data help you identify?
Patterns or trends in data
Define: Observation
The process of obtaining information by using the senses
How many centimeters are in a meter?
100 cm = 1 meter
What 2 ways do scientists organize data?
Data tables and graphs
What is the final step in the scientific process?
Communicate your results
Name one computer program that can be used to create a graph.
Google sheets or Microsoft Excel
Define: Independent Variable
The factor in an experiment that is deliberately manipulated or changed
How many directions do you measure when measuring the volume of an object?
3 directions (length, width, and height)
What does it mean for data to be reproducible?
You or someone else can reproduce the data using the same procedures and tools.
What are the 3 ways that scientists can investigate?
Research, Observations, Experimentation
What should be included after the words in an axis title? Example: Height (?)
Unit of measurement
Define: Dependent Variable
The factor in an experiment that changes as a result of manipulation or change in the independent variable.
How much does a liter of water weigh?
A Kilogram
Which variable in a data table goes on the x-axis of a graph?
The independent variable
Factors in an experiment that are intentionally held constant are called...
Controlled parameters
If the independent variable is height and dependent variable is shoe size, what would you write as the title for your graph?
Height vs. Shoe size