Scientific Method
What is the first step of the scientific method?
Ask a quesiton
What variable is changed on purpose?
Independent variable - I change (also called Manipulated Variable or Tested variable)
What type of graph shows change over time?
Line graph
What tool measures mass?
Balance
What is evidence in science?
Data collected from observations/experiments
What is a hypothesis?
A testable prediction
What variable is measured?
Dependent variable (also called: Outcome variable or Response variable)
What type of graph compares categories?
What tool measures volume of liquids?
Graduated cylinder
What is an inference?
A logical explanation based on evidence
What step comes after conducting an experiment?
Collecting/analyzing data
What variables must stay the same?
Control variables (constants)
What goes on the X-axis?
What tool measures temperature?
Thermometer
What is the difference between qualitative and quantitative data?
Qualitative = descriptive
Quantitative = numbers
Why do scientists repeat experiments?
To ensure results are reliable (RepeTITion/RePLication)
What is a controlled experiment?
Only one variable is changed
What goes on the Y-axis?
Dependent variable
What unit is commonly used for length in Science?
Meters or centimeters
Why is peer review important?
It checks accuracy and reliability (RePLication)
What is a conclusion?
A summary explaining results and whether the hypothesis was supported
Why is it important to have a control group?
Provides a baseline for comparison. (Is your independent variable really making a difference?)
Why do scientists use graphs?
Why do scientists use the metric system?
It is standardized and used worldwide
What makes a scientific explanation valid?
It is supported by evidence and can be tested