APES Chapter 2

In 1963 Bormann and Likens compared the output of two river valleys, one forested and the other clear cut. Which of the following reports their findings?

• deforested valley had higher water flow, decrease of nutrient loss

• forested valley had higher water flow, decrease of nutrient loss

• forested valley had lower water flow,

  increase of nutrient loss

• deforested valley had lower water flow, increase of nutrient loss

• deforested valley had higher water flow, increase of nutrient loss

Tags

NGSS.MS-ESS2-4

Which of the following is the definition of a scientific hypothesis?

• a simulation of a system being studied

• a possible explanation for an observation or experimentation

• information needed to answer questions

• procedures carried out under controlled conditions to gather information

• all of these

When an overwhelming body of observations and measurements supports a scientific hypothesis or group of related hypotheses, it becomes a(n)

• hypothesis

• scientific law

• scientific variable

• scientific theory

• conclusion

Tags

NGSS.HS-LS4-2

A well-tested and widely accepted description of what scientists find happening repeatedly in nature in the same way, is called a(n)

• theory

• scientific law

• hypothesis

• conclusion

• none of these

Matter is anything that

• has mass and takes up space

• has the capacity to do work

• can be changed in form

• can produce change

Which of the following is not identified by the author as a building block of matter?

• molecules

• compounds

• ions

• atoms

• none of these

Tags

NGSS.MS-PS1-1

Fundamental types of matter that have unique sets of properties and can not be broken down into simpler substances by chemical means are called

• mixtures

• compounds

• isotopes

• elements

• atoms

All of the following are elements except

• water

• oxygen

• nitrogen

• hydrogen

• carbon

The most basic building block of matter is a(n)

• atom

• element

• molecule

• compound

• ion

Tags

NGSS.MS-PS1-1

Protons, neutrons, and electrons are all

• forms of energy

• equal in mass

• subatomic particles

• negative ions

• charged particles

Tags

NGSS.MS-PS1-1