SC 7 N 3 1

Which geological features MOST LIKELY prompted the development of the theory of plate tectonics?

• river deltas

• glacier fields

• mountain ranges

• tropical rainforests

Tags

NGSS.MS-ESS2-3

Identify the scientific law from among the following statements.

• The book fell 1 meter in 0.5 seconds

• Gravity acts upon each object on the Earth.

• The velocity of the book is 2 meters/second.

• I believe that the book will fall faster outside rather than inside the building.

Tags

NGSS.MS-PS2-4

A teacher has asked four students to state a scientific theory. Which student is correct?

• Antonio

• Boris

• Chandrelle

• Danielle

Tags

NGSS.MS-ESS1-1

NGSS.MS-LS4-2

NGSS.MS-PS1-2

Darwin observed how farmers and breeders produced many kinds of farm animals and plants. These plants and animals had traits that were desired by the farmers and breeders. He also noticed how the study of similar body structures and vestigial organs could add to the evidence of evolution. After performing several breeding experiments, he came to certain conclusions and formulated some theories. His theory of evolution and natural selection is the most accepted one. What is the reason behind the acceptance of Darwin's theory?

• It is supported by practical evidence and examples.

• It is supported by its harmonizing with other views.

• It is based on the ideas of earlier hypothesis and laws.

• It is based on the practical example of Lamarck’s theory

Tags

NGSS.MS-LS4-2

A __________ predicts overall natural events in general terms, while a __________ is a very specific prediction based on one circumstance.

• law; theory

• law; hypothesis

• theory; hypothesis

• hypothesis; theory

Scientific hypotheses, theories, and laws are all vital to the development of scientific ideas. They are all vital, but they are not equal. They actually represent different types of ideas, with varying degrees of strength. The strength of a scientific idea is based in large part on how well it allows us to predict what will happen in certain situations.

Rank the three, beginning with the weakest.

• Law, Theory, Hypothesis

• Theory, Law, Hypothesis

• Theory, Hypothesis, Law

• Hypothesis, Theory, Law

Which sentence BEST explains why scientists continually make incremental adjustments to their theories?

• Newer theories are always more accurate than older ones.

• New observations have to be accounted for in the theory.

• Over time, the laws of nature change, so theories need to be updated.

• Scientists are in competition to make more improvements than their colleagues.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS2-1

A scientific theory is based on

• data collected over time.

• a general claim by scientist.

• the best guess of a scientist.

• an idea that can only be proven true.

Tags

NGSS.MS-LS2-4

The list of terms BEST describes a

• hypothesis.

• law.

• theory.

• variable.

Scientific hypotheses, theories, and laws are all vital to the development of scientific ideas. They are all vital, but they are not equal. They actually represent different types of ideas, with varying degrees of strength. The strength of a scientific idea is based in large part on how well it allows us to predict what will happen in certain situations. Rank the three, beginning with the strongest.

• Law, Theory, Hypothesis

• Theory, Law, Hypothesis

• Theory, Hypothesis, Law

• Hypothesis, Theory, Law