Scientific Method - Variables in Experiments Practice

Question 1

All hypotheses eventually become theories.

Accepted Answer

false

Question 2

In an experiment, a(n) _____ is a standard used for comparison.

Accepted Answer

control

Question 3

a factor in an experiment that does not change

Accepted Answer

constant

Question 4

A ____________ describes a pattern but does not explain why things happen.

Accepted Answer

scientific law

Question 5

When two scientists have different hypotheses on the same topic, you can conclude that ___.

Accepted Answer

this is normal due to the nature of science

Question 6

Challenge: Which category includes the MOST number of species on Earth?

Accepted Answer

fish

Question 7

a standard used to compare the results of the experiment

Accepted Answer

control

Question 8

Which is the final step in an experiment?

Accepted Answer

reach a conclusion

Question 9

An experiment is used for testing a _______.

Accepted Answer

hypothesis

Question 10

x-axis

Accepted Answer

independent variable

Question 11

Challenge: What is the common name for Acer saccharum ?

Accepted Answer

sugar maple

Question 12

y-axis

Accepted Answer

dependent variable

Question 13

used to explain how and why a scientific law works

Accepted Answer

theories

Question 14

Challenge: What is the best estimate for the number of mammal species on Earth?

Accepted Answer

5, 400

Question 15

A line graph is an example of a ____.

Accepted Answer

model

Questions 15