10th Ch. 2 Review

Question 1

What are principles or standards we consider important?

Accepted Answer

Value

Question 2

What is a procedure for testing a hypothesis under controlled conditions?

Accepted Answer

Experiment

Question 3

What is the average of a number called?

Accepted Answer

Mean

Question 4

What is information gathered by using sight, hearing, smell or touch?

Accepted Answer

Observation

Question 5

What is a testable explanation for an observation?

Accepted Answer

Hypothesis

Question 6

A good hypothesis is more than a guess because it _____.

Accepted Answer

Both B & C

Question 7

What essential characteristic does a good experiment have?

Accepted Answer

More than one answer is correct.

Question 8

What would be an example of a physical model?

Accepted Answer

Earth

Question 9

In a scientific investigation, the number of objects or events being sampled should be _____.

Accepted Answer

large enough for an accurate estimate of the population

Question 10

What is the chance that something will happen?

Accepted Answer

Probability

Question 11

What is the collection & classification of data in the form of numbers?

Accepted Answer

Statistics

Question 12

What is a verbal or graphical explanation for how a system works or is organized?

Accepted Answer

Conceptual model

Question 13

What is information gathered during an experiment?

Accepted Answer

Data

Question 14

Why are mathematical models important?

Accepted Answer

Useful when there's a lot of variables

Question 15

What is an association used to study a subject when using an experiment is impossible/unethical

Accepted Answer

Correlation

Questions 15