U1 L1-L3

Which of these answers best describes a scientific theory?

• an explanation based on the opinion of a scientist

• a well-supported and widely accepted explanation of nature

• a description of a specific relationship under given conditions

• a statement describing what always happens under certain conditions

Which of these claims best describes how scientific idea change?

• New evidence leads to modification of ideas

• Scientific ideas rarely change, because they are based on extensive evidence

• As a scientific idea changes, it eventually becomes a scientific theory and then a law

• Scientists form opinions based on evidence and decide how the idea should change

A chemist wants to examine specific chemical reactions and isolate certain products using a controlled experiment. How would the chemist perform this experiment?

• in a laboratory

• out in the field

• by performing a survey

• by using scientific laws

The figure illustrates evidence supporting kinetic theory of matter, which describes the behavior of gases based on the motions of the particles. Which claim best describes how evidence in the example supports kinetic theory?

• The balloon gets bigger as the temperature of the gas inside it increases

• The balloon gets bigger as the temperature of the gas inside it increases because the gas particles move faster and get farther apart

• The balloon gets smaller as the temperature of the gas inside it increases

• The balloon gets smaller as the temperature of the gas inside it increases because the gas particles move more slowly and get closer together

Which of these scientists would most likely engage in fieldwork to observe organisms?

• chemist

• biologist

• physicist

• mathematician

A statement that describes the way the world works under certain conditions

• empirical evidence

• scientific theory

• scientific law

• scientific method

An explanationof nature that is well-supported and widely accepted

• empirical evidence

• scientific theory

• scientific law

• scientific method

The information acquired by observation or experimentation.

• empirical evidence

• scientific theory

• scientific law

• scientific method

What does the "C" stand for in your CER?

• Cher's inability to turn back time

• Citing evidence to support your argument

• The claim that your statement contains

• Chemistry and the elements known to us

When using CER, the "R" stands for

• Roblox

• The Respect in our ROAR expectations

• Captain Hook's favorite letter

• Refers to the reason why the evidence supports your claim