The Nature of Science

What step does every scientific experiment begin with?

• hypothesis

• question/problem

• procedures

• conclusion

What is being changed in this experiment?

• ramp height

• the speed that the ball rolls

• type of ball

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

• scientific method

• recipe

• data collection

• metric system

In which statement does the word theory mean scientific theory?

• In theory, the experiment will work as planned. 

• She has a theory about why the storm arrived later than predicted. 

• The atomic theory explains that material objects are made up of atoms. 

• The doctor’s prescription for curing a cold is based on his best theory or guess. 

A conclusion formed based on observation is called a...

• Theory

• Fact

• Inference

• Hypothesis

Tags

NGSS.MS-PS1-2

What statement about hypotheses is FALSE?

• A hypothesis must always be an "If...then..." statement

• A hypothesis includes independent & dependent variables

• A hypothesis describes a cause & effect relationship

• A hypothesis is an educated guess that must be correct

What is the difference between a scientific law and a scientific theory?

• A law is a prediction, a theory is an explanation

• A law is a fact but a theory is not

• A law is used in Physics, a theory is used in Biology

• A law is more scientific than a theory

Process that uses observations and investigation to gain knowledge about events in nature is called _.

• science

• predicting

• inferring

Tags

NGSS.MS-LS1-1

NGSS.MS-PS1-2

A _ is an educated guess or testable prediction

• control

• hypothesis

• dependent variable

Tags

NGSS.MS-PS1-2

An organized procedure for testing a hypothesis is a(n) _.

• experiment

• independent variable

• constant