Question 1

Match items with their appropriate chemical description.
-Subatomic particle with a positive charge​

Accepted Answer

A) NH4+ 
B) molecule 
C) electron 
D) proton 
E) neutron
F)pH
G)Ca
H)P
I)mass number
J)NO3-
K)C6H12O6 
A) NH4+ 
B) molecule 
C) electron 
D) proton 
E) neutron
F)pH
G)Ca
H)P
I)mass number
J)NO3-
K)C6H12O6

Question 2

The law of conservation of matter states that whenever matter undergoes a physical or chemical change,____.​

Accepted Answer

A)  ​atoms can be created 
B)  ​atoms can be destroyed 
C)  ​atoms cannot be created or destroyed 
D)  ​atoms can be destroyed if we compost them 
E)  ​atoms can be created by reactions between organic compounds 
A)  ​atoms can be created 
B)  ​atoms can be destroyed 
C)  ​atoms cannot be created or destroyed 
D)  ​atoms can be destroyed if we compost them 
E)  ​atoms can be created by reactions between organic compounds

Question 3

​Matter that is near the earth's surface,that is highly concentrated,and that has great potential for use as a resource,is referred to as ____________________.

Accepted Answer

high-quality,high qu

Question 4

Genes are composed of sequences of ____.​

Accepted Answer

A)  ​ions 
B)  ​chromosomes 
C)  ​cells 
D)  ​nucleotides 
E)  ​proteins 
A)  ​ions 
B)  ​chromosomes 
C)  ​cells 
D)  ​nucleotides 
E)  ​proteins

Question 5

A positive feedback loop causes a system to change in the opposite direction from which it is moving.​

Accepted Answer

A) True 
 B)False

Question 6

When matter undergoes physical changes,the chemical composition also changes.​

Accepted Answer

A) True 
 B)False

Question 7

A positive feedback loop ____.​

Accepted Answer

A)  ​increases a change to a system 
B)  ​always results in a beneficial change to a system 
C)  ​decreases a change to a system 
D)  ​never results in a beneficial change to a system 
E)  ​stabilizes a system 
A)  ​increases a change to a system 
B)  ​always results in a beneficial change to a system 
C)  ​decreases a change to a system 
D)  ​never results in a beneficial change to a system 
E)  ​stabilizes a system

Question 8

Science is ____.​

Accepted Answer

A)  ​a field in which observations are rarely tested 
B)  never investigated using statistical tools and models 
C)  ​best described as a collection of opinions 
D)  ​supported by small amounts of evidence 
E)  ​a broad field of study focused on discovering how nature works 
A)  ​a field in which observations are rarely tested 
B)  never investigated using statistical tools and models 
C)  ​best described as a collection of opinions 
D)  ​supported by small amounts of evidence 
E)  ​a broad field of study focused on discovering how nature works

Question 9

Because there is often no way to measure every instance of a phenomenon around the entire world,scientists ____.​

Accepted Answer

A)  ​can do little more than guess at what's happening 
B)  ​do not even attempt to do so 
C)  ​pick one instance and assume it's perfectly representative 
D)  ​use statistical sampling and mathematical models to make estimates 
E)  ​use computer simulations instead 
A)  ​can do little more than guess at what's happening 
B)  ​do not even attempt to do so 
C)  ​pick one instance and assume it's perfectly representative 
D)  ​use statistical sampling and mathematical models to make estimates 
E)  ​use computer simulations instead

Question 10

​A simple carbohydrate that plants and animals use to obtain energy is ____________________.

Accepted Answer

The answer of ​A simple carbohydrate that plants and animals...

Question 11

A(n)____ is an approximate representation or simulation of a system.​

Accepted Answer

A)  ​model 
B)  ​datum 
C)  ​projection 
D)  ​experiment 
E)  ​peer review 
A)  ​model 
B)  ​datum 
C)  ​projection 
D)  ​experiment 
E)  ​peer review

Question 12

Atomic theory,the idea that all elements are made of up atoms,____.​

Accepted Answer

A)  ​is a scientific theory 
B)  ​is a scientific law 
C)  ​is tentative science 
D)  ​is no longer considered to be correct 
E)  ​violates the law of conservation of matter 
A)  ​is a scientific theory 
B)  ​is a scientific law 
C)  ​is tentative science 
D)  ​is no longer considered to be correct 
E)  ​violates the law of conservation of matter

Question 13

​An atom or group of atoms with one or more net positive or negative charges is called a(n)____________________.

Accepted Answer

The answer of ​An atom or group of atoms with...

Question 14

Explain how genes,traits,and chromosomes are related.

Accepted Answer

​Traits,or characteristics,are

Question 15

A scientific law ____.

Accepted Answer

A)  ​is a hypothesis that has been proven 
B)  ​is what a theory becomes when it passes experimental tests 
C)  ​is called that because there are consequences when it is broken 
D)  ​is a well-tested and widely accepted description of what we find happening repeatedly and in the same way in nature 
E)  ​determines the series of steps that should be followed when designing an experiment to test a hypothesis 
A)  ​is a hypothesis that has been proven 
B)  ​is what a theory becomes when it passes experimental tests 
C)  ​is called that because there are consequences when it is broken 
D)  ​is a well-tested and widely accepted description of what we find happening repeatedly and in the same way in nature 
E)  ​determines the series of steps that should be followed when designing an experiment to test a hypothesis

Question 16

An atom's mass number is equal to the total number of ____.​

Accepted Answer

A)  ​neutrons and isotopes 
B)  ​neutrons and electrons 
C)  ​neutrons and protons 
D)  ​protons,neutrons,and electrons 
E)  ​protons only 
A)  ​neutrons and isotopes 
B)  ​neutrons and electrons 
C)  ​neutrons and protons 
D)  ​protons,neutrons,and electrons 
E)  ​protons only

Question 17

A thermostat set to 62 °F turns on the furnace when a house cools below that temperature,and shuts the furnace off when a house warms above that temperature.This is an example of a simple ____.​

Accepted Answer

A)  ​positive feedback loop 
B)  ​negative feedback loop 
C)  ​system loop 
D)  ​tipping point 
E)  ​thermodynamic loop 
A)  ​positive feedback loop 
B)  ​negative feedback loop 
C)  ​system loop 
D)  ​tipping point 
E)  ​thermodynamic loop

Question 18

A chemical that is a combination of two or more different elements is called a(n)____________________.

Accepted Answer

The answer of A chemical that is a combination of...

Question 19

When a natural system gets locked into a positive feedback loop,it can reach an ecological tipping point.​

Accepted Answer

A) True 
 B)False

Question 20

The most common form of the carbon atom is sometimes referred to as 12C.An isotope of this atom is called 14C.14C must have a different number of ____ than 12C.​

Accepted Answer

A)  ​ions 
B)  ​protons 
C)  ​atoms 
D)  ​neutrons 
E)  ​electrons 
A)  ​ions 
B)  ​protons 
C)  ​atoms 
D)  ​neutrons 
E)  ​electrons

Match items with their appropriate chemical description. -Subatomic particle with a positive charge

The law of conservation of matter states that whenever matter undergoes a physical or chemical change,____.

Matter that is near the earth's surface,that is highly concentrated,and that has great potential for use as a resource,is referred to as ____________________.

Genes are composed of sequences of ____.

A positive feedback loop causes a system to change in the opposite direction from which it is moving.

When matter undergoes physical changes,the chemical composition also changes.

A positive feedback loop ____.

Science is ____.

Because there is often no way to measure every instance of a phenomenon around the entire world,scientists ____.

A simple carbohydrate that plants and animals use to obtain energy is ____________________.

A(n)____ is an approximate representation or simulation of a system.

Atomic theory,the idea that all elements are made of up atoms,____.

An atom or group of atoms with one or more net positive or negative charges is called a(n)____________________.

Explain how genes,traits,and chromosomes are related.

A scientific law ____.

An atom's mass number is equal to the total number of ____.

A thermostat set to 62 °F turns on the furnace when a house cools below that temperature,and shuts the furnace off when a house warms above that temperature.This is an example of a simple ____.

A chemical that is a combination of two or more different elements is called a(n)____________________.

When a natural system gets locked into a positive feedback loop,it can reach an ecological tipping point.

The most common form of the carbon atom is sometimes referred to as ¹²C.An isotope of this atom is called ¹⁴C.¹⁴C must have a different number of ____ than ¹²C.

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 Urbanization

Climate and Biodiversity

Sustaining Biodiversity - the Species Approach

Sustaining Biodiversity - the Ecosystem Approach

Food - Soil - and Pest Management

Water Resources and Water Pollution

Geology and Nonrenewable Minerals

Energy

Environmental Hazards and Human Health

Air Pollution Climate Change and Ozone Depletion

Solid and Hazardous Waste

Environmental Economics Politics and Worldviews

Filters

Exam 2: Science - Matter - and Energy

Match items with their appropriate chemical description. -Subatomic particle with a positive charge​

The law of conservation of matter states that whenever matter undergoes a physical or chemical change,____.​

​Matter that is near the earth's surface,that is highly concentrated,and that has great potential for use as a resource,is referred to as ____________________.

Genes are composed of sequences of ____.​

A positive feedback loop causes a system to change in the opposite direction from which it is moving.​

When matter undergoes physical changes,the chemical composition also changes.​

A positive feedback loop ____.​

Science is ____.​

Because there is often no way to measure every instance of a phenomenon around the entire world,scientists ____.​

​A simple carbohydrate that plants and animals use to obtain energy is ____________________.

A(n)____ is an approximate representation or simulation of a system.​

Atomic theory,the idea that all elements are made of up atoms,____.​

​An atom or group of atoms with one or more net positive or negative charges is called a(n)____________________.

Explain how genes,traits,and chromosomes are related.

A scientific law ____.

An atom's mass number is equal to the total number of ____.​

A thermostat set to 62 °F turns on the furnace when a house cools below that temperature,and shuts the furnace off when a house warms above that temperature.This is an example of a simple ____.​

A chemical that is a combination of two or more different elements is called a(n)____________________.

When a natural system gets locked into a positive feedback loop,it can reach an ecological tipping point.​

The most common form of the carbon atom is sometimes referred to as 12C.An isotope of this atom is called 14C.14C must have a different number of ____ than 12C.​

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 Urbanization

Climate and Biodiversity

Sustaining Biodiversity - the Species Approach

Sustaining Biodiversity - the Ecosystem Approach

Food - Soil - and Pest Management

Water Resources and Water Pollution

Geology and Nonrenewable Minerals

Energy

Environmental Hazards and Human Health

Air Pollution Climate Change and Ozone Depletion

Solid and Hazardous Waste

Environmental Economics Politics and Worldviews

Filters

Match items with their appropriate chemical description. -Subatomic particle with a positive charge

The law of conservation of matter states that whenever matter undergoes a physical or chemical change,____.

Matter that is near the earth's surface,that is highly concentrated,and that has great potential for use as a resource,is referred to as ____________________.

Genes are composed of sequences of ____.

A positive feedback loop causes a system to change in the opposite direction from which it is moving.

When matter undergoes physical changes,the chemical composition also changes.

A positive feedback loop ____.

Science is ____.

Because there is often no way to measure every instance of a phenomenon around the entire world,scientists ____.

A simple carbohydrate that plants and animals use to obtain energy is ____________________.

A(n)____ is an approximate representation or simulation of a system.

Atomic theory,the idea that all elements are made of up atoms,____.

An atom or group of atoms with one or more net positive or negative charges is called a(n)____________________.

An atom's mass number is equal to the total number of ____.

A thermostat set to 62 °F turns on the furnace when a house cools below that temperature,and shuts the furnace off when a house warms above that temperature.This is an example of a simple ____.

When a natural system gets locked into a positive feedback loop,it can reach an ecological tipping point.

The most common form of the carbon atom is sometimes referred to as ¹²C.An isotope of this atom is called ¹⁴C.¹⁴C must have a different number of ____ than ¹²C.