1st 9 week Exam Review

what is peer review

• something that supports or reutes an idea

• a proposed explaination

• action or process of gaining information

• looking over someone's work for publication to insure accurate scientific methods were used

• conclusion or judgement

These are the best explanation for a phenomenon with all of the available evidence

• law

• theory

Tags

NGSS.HS-LS4-2

NGSS.HS-PS1-2

NGSS.HS-PS4-3

These can often be represented mathematically and provide no explanation why a phenomenon occurs

• theory

• law

Tags

NGSS.HS-PS2-1

Do theories become laws?

• Yes

• No

• Sometimes

• Always

Why do we want to test one variable at a time?

• Because it is hard to setup a data table with more
• To know what is causing the changes. This helps us understand cause and effect.
• It is what has always been done

Kalinda was trying to explain to her friend the difference between a theory and a law in science. She used the theory of plate tectonics and the law of superposition as examples. Kalinda explained the difference by using nonscientific language. Which statement did Kalinda use to correctly describe the difference between a theory and a law in science?

• A theory describes a natural event, while a law explains it.

• A theory and a law predicts natural events.

• A theory explains why an event happens, while a law describes what happens with no explanation why

• A theory predicts a natural event, while a law explains it.

What is the variable that is measured during an experiment in order to determine the outcome?

• dependent variable

• independent variable

• observation

• theory

Tags

NGSS.HS-PS1-3

What is the group in an experiment that receives treatment with the independent variable?

• control group

• experimental group

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted (left out).

• experimental group

• control group

What does Biology mean?

• The study of rocks

• The study of life

• The study of stars

• The study of fire