Intro_to_Science_Retake_Review

What is the primary focus of science?

• Making guesses about the world and proving the observations

• Learning about the natural world through observations and logical reasoning

• Storing information in a lab and making predictions

What is a hypothesis?

• A proven fact based on a scientific explanation

• A final answer to a scientific problem based on observation

• A possible explanation for observations related to a scientific question

Which of the following describes a scientific theory?

• A hypothesis that has been tested repeatedly and explains a wide range of observations

• A single observation that answers a scientific question

• An educated guess that has not been tested but suspected.

What is a scientific law?

• A theory that has been disproven through observations

• A statement describing what scientists expect to happen under specific conditions

• A random prediction about the natural world based on a hypothesis

Which of the following best defines an observation?

• A guess based on feelings and theories

• Any sensory experience about a natural phenomenon

• A calculation made in the lab

What is an inference?

• A logical interpretation based on observations or prior knowledge

• A direct observation of nature

• A final decision in an experiment

Tags

NGSS.MS-LS2-1

What is a controlled experiment?

• An experiment where all variables are changed

• An experiment where all variables stay the same, except for one

• An experiment that is unplanned

Tags

NGSS.MS-PS2-2

Which variable in an experiment is kept the same?

• Independent Variable

• Dependent Variable

• Controlled Variable

Which variable is changed by the scientist in an experiment?

• Dependent Variable

• Independent Variable

• Co-dependent Variable

Tags

NGSS.MS-PS2-2

What is the dependent variable in an experiment?

• The variable that the scientist changes

• The variable that stays constant throughout the experiment

• The variable that responds and changes because of the experiment

Tags

NGSS.MS-PS1-2