Scientific Method

In order to be accepted, a scientific theory must be

•  widely tested and supported by extensive data
•  based on the results of a single experiment
•  controversial and cause debate
•  in line with all previous historical ideas

Tags

NGSS.HS-LS4-2

In an appropriately designed experiment, a scientist is able to test the effect of

•  a single variable
•  multiple variables
•  the hypothesis
•  scientific observations

Tags

NGSS.MS-PS2-2

Conclusions based on an experiment are most likely to be accepted when

• they are consistent with experimental data and observations
•  they are derived from investigations having many experimental variables
•  scientists agree that only one hypothesis has been tested
•  hypotheses are based on one experimental design

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-5

An experiment was carried out to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were measured. Group A was then given caffeinated soda and group B was given caffeine-free soda. Pulse rates were re-measured. The dependent variable in this experiment is the

• type of soda given to each group

• amount of soda given to each group

• pulse rate of each group

• age of participants in each group

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

Which is NOT a step in the scientific method?

• Make observation
• Form a theory
• Collect data
• Form a hypothesis

A testable explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

Tags

NGSS.HS-PS1-2

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

Tags

NGSS.MS-PS2-2

NGSS.MS-ETS1-4

This variable in an experiment is the one being changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

The name of the information that you get from your experiment (you organize it into charts and graphs).

• observations
  conclusion
• data
• variables
• hypothesis

Tags

CCSS.6.SP.B.5A