Vocab
An observation that uses numbers.
What is quantitative?
Information that scientists collect
What is data?
Used to measure weight
What is spring-scale?
The middle number in a data set.
What is the median?
Scientist creates or modify these when new evidence is found.
What is scientific theory?
A non-numerical observation
What is qualitative?
The variable that is deliberately changed in an investigation/experiment
What is an independent variable?
Used to measure distance in cm.
What is a ruler or meter stick?
The difference between the largest and smallest data points
What is the range?
When you conduct multiple of these to verify the results.
What is an investigation?
A systematic study of natural events
What is science?
A scientist uses lab rats in a controlled experiment to study how the amount of exercise affects the body mass of lab rats. What is the dependent variable of the experiment?
What is the body mass of lab rats
Used to measure time.
What is a stopwatch?
When you find the average of the data
What is the mean?
Used to measure the volume of a liquid
What is a graduated cylinder?
False study of the natural world
What is pseudoscience?
First thing you do when beginning an investigation/experiment
What is form a testable question?
Used to measure mass
What is a triple-beam balance or electronic scale?
The most data points are called
What is the mode?
When scientist run multiple trials and have other scientists repeat their experiments they are checking
What are the accuracy and validity?
The factor that changes because of the changes of the independent variable
What is the dependent variable?
Give an example of an experiment. Identify the dependent and independent variable.
Answers will vary
Measures temperature
What is a thermometer?
Independent and dependent variables, data, and controlled conditions are all apart of what?
What is a laboratory experiment?
Examples of reliable sources
What are scientific journals, textbooks, and reports/research?