Question 1

Atoms have a net positive electrical charge.

Accepted Answer

A) True 
 B)False  False

Question 2

What is the fundamental structural and functional unit of life?

Accepted Answer

A)  atom 
B)  macromolecule 
C)  DNA 
D)  cell 
E)  organism 
A)  atom 
B)  macromolecule 
C)  DNA 
D)  cell 
E)  organism D

Question 3

Matter is anything that ____.

Accepted Answer

A)  has mass and takes up space 
B)  has the capacity to do work 
C)  can be changed in form 
D)  can produce change 
E)  moves mass 
A)  has mass and takes up space 
B)  has the capacity to do work 
C)  can be changed in form 
D)  can produce change 
E)  moves mass A

Question 4

Draw the basic chemical reaction of carbon and oxygen (C + O2)

Accepted Answer

Question 5

The matter and energy laws tell us that we can recycle ____.

Accepted Answer

A)  both matter and energy 
B)  neither matter nor energy 
C)  matter but not energy 
D)  energy but not matter 
E)  nothing and everything 
A)  both matter and energy 
B)  neither matter nor energy 
C)  matter but not energy 
D)  energy but not matter 
E)  nothing and everything

Question 6

In a nuclear fission reaction,atoms are destroyed.

Accepted Answer

A) True 
 B)False

Question 7

Burning coal demonstrates the conversion of energy from kinetic to potential.

Accepted Answer

A) True 
 B)False

Question 8

Scientists tend to be highly skeptical of new data,hypotheses,and models until they can be tested and verified.

Accepted Answer

A) True 
 B)False

Question 9

According to the law of conservation of matter,once trash decomposes in a landfill,we have completely gotten rid of the matter that made up the trash.

Accepted Answer

A) True 
 B)False

Question 10

How useful matter is to humans as a resource is determined by its concentration,availability for use,and its potential.

Accepted Answer

A) True 
 B)False

Question 11

A community knows the effects of chemical X when it is used alone.They also know the same for chemical Z,so they set safe limits for use for both chemicals.When the chemicals are released at safe levels on the same day,there is a massive fish kill.What is the most likely explanation?

Accepted Answer

A)  homeostasis 
B)  synergistic interaction 
C)  negative feedback 
D)  positive feedback 
E)  entropy 
A)  homeostasis 
B)  synergistic interaction 
C)  negative feedback 
D)  positive feedback 
E)  entropy

Question 12

Explain how heat is a form of kinetic energy.

Accepted Answer

Heat is a form of kinetic energy because

Question 13

Briefly describe the scientific process outlined in this chapter.

Accepted Answer

Identify a problem,find out what is know

Question 14

-Much of the energy produced is lost before it can become useful.Explain how energy efficiency,or energy productivity,and the second law of thermodynamics may be useful in a discussion with another person on how to reduce CO2 and other greenhouse gas emissions.

Accepted Answer

Machines that use fossil fuels are very

Question 15

According to the ____________________,when a physical or chemical change occurs,no atoms are created or destroyed.

Accepted Answer

law of con

Question 16

Methane,a hydrocarbon,is considered an organic molecule even though it contains only one carbon atom.

Accepted Answer

A) True 
 B)False

Question 17

The mass number of an atom is equal to the sum of the ____.

Accepted Answer

A)  neutrons and isotopes 
B)  neutrons and electrons 
C)  neutrons and protons 
D)  protons and electrons 
E)  ions and isotopes 
A)  neutrons and isotopes 
B)  neutrons and electrons 
C)  neutrons and protons 
D)  protons and electrons 
E)  ions and isotopes

Question 18

____________________ happens when scientists report details of their research and other scientists evaluate it.

Accepted Answer

The answer of ____________________ happens when scientists report details of...

Question 19

Tentative or frontier science is performed by amateur scientists whose work will never be accepted by their peers.

Accepted Answer

A) True 
 B)False

Question 20

Differentiate between a hypothesis,a guess,and a theory.Explain why it is important for non-scientists to understand how scientists use these terms when discussing something like global warming or evolution.Why might it be incorrect when a non-scientist dismisses a topic like these as being "just a theory"?

Accepted Answer

A hypothesis is an effort to explain phe

Exam 2: Science, matter, energy, and Systems

Atoms have a net positive electrical charge.

What is the fundamental structural and functional unit of life?

Matter is anything that ____.

Draw the basic chemical reaction of carbon and oxygen (C + O2)

The matter and energy laws tell us that we can recycle ____.

In a nuclear fission reaction,atoms are destroyed.

Burning coal demonstrates the conversion of energy from kinetic to potential.

Scientists tend to be highly skeptical of new data,hypotheses,and models until they can be tested and verified.

According to the law of conservation of matter,once trash decomposes in a landfill,we have completely gotten rid of the matter that made up the trash.

How useful matter is to humans as a resource is determined by its concentration,availability for use,and its potential.

A community knows the effects of chemical X when it is used alone.They also know the same for chemical Z,so they set safe limits for use for both chemicals.When the chemicals are released at safe levels on the same day,there is a massive fish kill.What is the most likely explanation?

Explain how heat is a form of kinetic energy.

Briefly describe the scientific process outlined in this chapter.

-Much of the energy produced is lost before it can become useful.Explain how energy efficiency,or energy productivity,and the second law of thermodynamics may be useful in a discussion with another person on how to reduce CO2 and other greenhouse gas emissions.

According to the ____________________,when a physical or chemical change occurs,no atoms are created or destroyed.

Methane,a hydrocarbon,is considered an organic molecule even though it contains only one carbon atom.

The mass number of an atom is equal to the sum of the ____.

____________________ happens when scientists report details of their research and other scientists evaluate it.

Tentative or frontier science is performed by amateur scientists whose work will never be accepted by their peers.

Environmental Problems, their Causes, and Sustainability

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

Biodiversity, species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Sustaining Aquatic Biodiversity

Food, soil, and Pest Management

Water Resources

Geology and Nonrenewable Mineral Resources

Nonrenewable Energy

Energy Efficiency and Renewable Energy

Environmental Hazards and Human Health

Air Pollution

Climate Disruption and Ozone Depletion

Water Pollution

Solid and Hazardous Waste

Cities and Sustainability

Economics, environment, and Sustainability

Politics, environment, and Sustainability

Environmental Worldviews, ethics, and Sustainability

Filters

Draw the basic chemical reaction of carbon and oxygen (C + O₂)

-Much of the energy produced is lost before it can become useful.Explain how energy efficiency,or energy productivity,and the second law of thermodynamics may be useful in a discussion with another person on how to reduce CO₂ and other greenhouse gas emissions.