DrB's 25-26 Nature of Science Test Review

Which of these BEST describes a scientific law?

• Explains why something happens

• Describes patterns observed in nature

• Is a random guess

• Cannot ever change

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-1

Why do theories sometimes change over time?

• Scientists want new ideas each year

• Theories are just guesses

• New data may not fit older explanations

• Theories are automatically wrong

Tags

NGSS.HS-ESS1-2

NGSS.HS-LS4-5

Which is the BEST reason precise measurement is important in experiments?

• To prove the hypothesis right

• To compare results across different trials and labs

• To make graphs look better

• To avoid repeating the experiment

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-4

Which of the following is the BEST example of peer review?

• A scientist re-checks their own data

• A teacher grades a student lab report

• Other scientists evaluate a study before it is published

• A student looks at a textbook example

A scientist develops a new explanation for a phenomenon, but later evidence shows flaws. What should happen?

• The explanation is revised or replaced with one that fits the evidence

• The explanation becomes a law

• The explanation is ignored permanently

• The evidence is thrown out

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-4

NGSS.HS-PS1-2

What is the FIRST step in the scientific process?

• Forming a hypothesis

• Observing and identifying a problem

• Drawing a conclusion

• Collecting results

What is the purpose of models in science?

• To make science fun

• To represent systems too large, small, or complex to study directly

• To prove a theory

• To replace experiments

Why do scientists use multiple trials?

• To confirm results are consistent and reliable

• To speed up experiments

• To avoid errors entirely

• To make results look interesting

A student wants to test fertilizer effects on plant growth. Which would be the best CONTROL?

• Plants with no fertilizer

• Plants with more sunlight

• Plants with extra water

• Plants with double fertilizer

A scientist collects data but another team gets different results. What is the MOST important next step?

• Publish anyway

• Argue that the other team is wrong

• Re-examine methods and replicate experiments

• Ignore the conflict

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-5