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SNC1W Review for the January Exam Flashcards | StudBud
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SNC1W Review for the January Exam
SNC1W Review for the January Exam
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Questions
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Answers
1
A mixture is ...
the component in a solution which exists in greater quality
made up of two or more substances
a substance consisting of only one phase
a substance consisting of more than one phase
2
What is climate change?
A change in global or regional climate patterns
Increase in the overall temp of the earth's atmosphere
A sudden change in conditions like temperature or rainfall
A seasonal weather change
3
What did Bohr add to Rutherford's model?
Charge of Electrons
Energy Levels
Neutrons
Positive Nucleus
4
Earth's atmosphere is made of
21% nitrogen, 78% oxygen, <1% other gases
78% nitrogen 21 % oxygen gas•<1% other gases
78 % carbon dioxide, 21 % water vapour and 1% oxygen
78 % oxygen, 21 % water vapour and 1% water vapour
5
An example of a carbon sink is
Glaciers
A forest
Solar panels
6
What statement best describes matter?
Anything that takes up space
Anything that has volume
Anything that has mass
Anything that takes up space and has mass
7
Ionic compounds are made from...
non-metals and metals
metals only
non-metals only
8
Light energy is useful because it can be stored
True
False
9
What did Rutherford discover?
Neutrons
The atom
Electrons
The nucleus
10
What is needed for photosynthesis to occur?
sugar and water
carbon dioxide and water
carbon dioxide and oxygen
oxygen and sugar
11
Mechanical mixtures ...
contain different substances which are hard to distnguish by the eye.
could be represented by grape juice as an example,
contain different substances which are easy to distinguish by the eye.
have only one particle.
12
What is a food web?
Lots of food on a table
Arrows connecting animals
A spider web full of food
Many food chains that are connected
13
Solubility and hardness are physical properties
True
False
14
Which of the following describes chemical properties?
fumes from ammonia and hydrochloric acid to produce white smoke
a chair
the shape of an object
when salt melts at 801 degrees celsius
15
What is formed by photosynthesis?
sugar and water
oxygen and sugar
choloroplasts
oxygen and carbon dioxide
16
An ecosystem can best be described as
communities of living things interacting with abiotic factors
a group of cells working together on the same functions
a group of all the same species living together
all the coral reefs or woodland areas on the world
17
What are the aspects of the NITROGEN cycle?
Weathering, Run-Off, Evaporation, and Precipitation
Weathering, Run-Off, Intake, and Decomposition
Photosynthesis, Decomposition, Respiration and Combustion
Fixation, Assimilation, Ammonification, Nitrification, and Denitrification
18
What are molecules?
two or more moles of a substance
molecules is the superscript number in a substance's name
two or more atoms bonded together
Two or more compounds bonded together
19
Primary Succession ...
happens when an ecosystem replaces a previous ecosystem
happens when an ecosystem develops where non existed before
happens when an ecosystem develops in a partially established area.
20
What experiment did Rutherford use?
Gold experiment
Gold foil experiment
Copper experiment
Silver foil experiment
21
Are fireworks an example of a chemical or physical change?
Neither.
Physical change.
Chemical change.
22
The symbol for potassium is:
K
P
Pm
Pt
23
What does this WHMIS symbol mean?
Oxidizing material
Corrosive Material
Flammable and combustible material
Biohazardous infectious material
24
After Democritis came Dalton, Thompson, Rutherford, Bohr and finally....
Albert Einstein
James Chadwick
Plato
25
The formula for density is
D = m / v
D = v x m
D = v / m
D = m x v
26
The three types of consumers are ...
mutualism, communalism, and parasitism
carnivores, vegetarians, and vegans.
carnivores, omnivores, and herbivores.
tundra, rainforest, and desert
27
What does cellular respiration have to do with the carbon cycle?
It is a type of carbon atom.
It is step three.
It releases carbon into the air.
It turns water into ice.
28
Which subatomic particles contribute to the atomic mass of an element?
protons+ electrons + neutrons
Electrons + protons
electrons
neutrons + protons
29
Cellular respiration is
the border of cells.
another word for energy.
the process cells use to to release energy stored in sugar.
how energy forms.
30
What causes an algal bloom?
An increase in the amount of organisms in an ecosystem
A decrease in nitrogen availability in aquatic environments
A nutrient rich environment attributed to spring run off and fertilizer
A nutrient rich environment attributed to increased number of organisms
31
Identify this WHMIS Symbol
Health Hazard
Biohazardous infectious
Harmful
Flammable
32
What is the importance of the atmosphere?
It makes conditions on Earth suitable for living things
To have weather
There is no importance
To keep aliens out
33
What are the characteristic physical properties?
Boiling point, melting point and mass
Boiling point, melting point and temperature
Melting point, boiling point pressure
Boiling point, melting point and density
34
When at the lab...
stay at your station
inhale deeply to smell substances
do not do what you were instructed
feel free to leave your table to socialize
35
Covalent compounds are formed from...
non-metals only
metals only
a non-metal bonded to a metal
36
Noble gases have what types of shells?
No outer shells
Empty outer shells
Partially filled outer shells
Full outer shells
37
Qualitative
Something that can be measured using numbers, such as height
Something that can be observed with our senses, not numbers
38
An example of a physical property is
rusting
change in colour
mass
flamability
39
What does WHMIS stand for?
Workplace Hazardous Material Information setup
Workplace Hazardous Material Information System
What Happened Man in Science
Workplace Hazardous Material Information Service
40
Which of these models was developed by BOHR?
NONE OF THESE
B
A
C
41
What non-metal is NOT on the right side of the periodic table?
Helium
Hydro
Carbon
Hydrogen
42
Fertilizer applications leads to loss of naturally occuring nutrients
False
True
43
What is the position of most metals in the periodic table?
On the left side only
In the middle only
On the right side only
On the left side and in the middle
44
The groups of a periodic table are the .........................
Horizontal rows
Vertical columns
45
Natural fertilizer releases nutrients quickly
True
False
46
Why are nutrient cycles called biogeochemical cycles?
Because they involve the elements needed for all animals to function
Because of the location the cycle
Because they involve all the elements needed for the human body to function
Because they involve biotic and abiotic compounds
47
In a non-neutral atom, the atomic number tells us the number of...
Protons
Electrons in the outer most orbit
Neutrons
Protons & Neutrons
48
Which is not appropriate lab safety
wearing goggles over eyes
reading all directions
tasting the lab materials
wearing a lab coat
49
What is secondary succession?
The study of where organisms exist
The series of changes where no organisms/soil exists
A series of changes in an ecosystem where organisms/soil exist
The first species to populate the area
50
What element has the atomic number 15?
phosphorus
chlorine
potassium
oxygen
51
What is a consequence of soil compaction?
Decreased absorption of water
Increased soil salinity
Increased weathering of rocks
Decreased soil fertility
52
All are examples of a chemical change except...
Milk souring
Boiling water
Suntanning
Match being lit
53
True or False: All molecules are compounds but not all compounds are molecules.
True
False
54
Which chemical family is displayed in red?
Alkaline earth metals
Alkali metals
noble gases
halogens
55
What is climate change?
When there is a change in climate patterns
When it is too hot
When there is no water
When there is no change in climate patterns
56
Define the water cycle.
Water that flows over Earth’s surface
A large mass of ice and snow moving on land
The continuous movement of water in all its forms
The loss of water through the leaves of plants
57
An ecological niche is........
the feeding level of an organism.
where an organism lives in a habitat.
how energy flows through a food chain.
the role an organism plays in an ecosystem.
58
What element has the atomic number 20?
cobalt
carbon
calcium
copper
59
Which of the following statements is NOT part of the Particle Theory of Matter
all matter consists of tiny particles with empty spaces between them
particles attract each other
particles are never in motion
different substances consist of different kinds of particles
60
What is a Threatened Species?
A species that is already extinct.
A nonnative species that is introduced into a area of land.
A species which is close to being endangered.
A species that is close to being extinct.
61
Which of the following are alternative farming practices?
crop selection
crop rotation
no-tillage farming
All the following answers
62
Chemical properties are?
observed using one or more of your 5 senses
abiliities of substance to dissolve
the abilities of substances to change composition
abilities of substances to change state
63
How much has the Earth's temperature increased since the 1800s?
1.1 degrees celsius
2 degrees celsius
-1.1 degrees celsius
10 degrees celsius
64
What is the first trophic level?
Quarternary
Secondary
Producers
Tertiary
65
A carbon sink is...
carbon that is removed from long term storage
carbon that falls to the ocean floor
a store of carbon that absorbs more carbon than it releases
a store of carbon that absorbs less carbon than it releases
66
What is water's boiling point?
100 degrees celcius
None of the above
100 degrees fahrenheit
99.8 degrees celcius
67
Water is vital for life because ...
it maintains cell shape.
all the previous answers
it plays an important transport role.
it makes up cells.
68
An area must be 100 square km in size to be considered an ecosystem.
True
False
69
What element has the atomic number 7?
neon
Calcium
nitrogen
oxygen
70
A pure substance ...
is made up of different types of matter
is only made of ONE element
is made from one kind of particle
looks the same but contains different types of matter
71
Soil is best descibed as ....
a soil profile.
decomposed organic matter.
weathered sediment, organic material, water, and air.
vertical section showing the soil horizon.
72
What is the freezing and melting point of water?
0 degrees and 1 degree respectively
0 degrees for both
0 degrees and 100 degrees respectively
0 degrees and 100 degrees respectively
73
The freezing point of water is
0 degrees F
0 degrees C
32 degrees C
100 degrees F
74
What is a food chain?
A chain with food.
A way to show what eats what and how energy transfers in an ecosystem.
The process of how food gets to our grocery stores.
A way to show what eats what in an ecosystem.
75
What are some impacts of climate change?
Lack of food security.
Surface temperature rise.
Warming oceans.
All the other answers
76
What are physical properties?
Properties that are used to observe and describe matter.
When there is a chemical change or chemical reaction
77
The carbon cycle...
relies on decomposing organisms.
includes all previous answers.
Includes combustion through burning fossil fuels.
is affected by volcanic eruptions.
78
Isotopes ...
have the same # of protons and electrons, but different # of neutrons
have the same # of protons and neutrons, but different # of electrons
have the same number of neutrons, protons and electrons
are elements which are not in the same family
79
Which families are most chemically reactive?
Noble Gases and Alkali Metals
Metaloids and Metals
Alkali Metals and Alkaline Metals
Alkali Metals and Halogens
80
Which chemical family is displayed in yellow?
rare earth metals
Alkali metals
Alkaline earth metals
noble gases
81
What is an alloy?
A mixture of a metal and at least one other metal or non metal
An atom that gains or looses protons
A mixture of one or more non metals
A metal
82
Which is a chemical change?
alcohol evaporates
An orange is cut
Milk sours
Salt is dissolved in water
83
What did Democritus name 'Atoms'?
Otamos
Hydrogen
Atomos
Atoms... duh
84
Baking cookies is an example of a chemical change that can be reversed.
True
False
85
producers
consume non-living things
make energy-rich food
consume living things
give off light
86
Carbon dioxide, methane, nitrous oxide, fluorinated gases are all greenhouse gases.
True
False
87
Which of these statements is
NOT
part of the particle theory of matter
All particles in a pure substance are the same
Adding heat makes particles move faster
There is space between particles
All particles in a mixture are homogenous
88
What does this WHMIS symbol mean?
Biohazardous infectious material
Dangerously reactive material
Flammable and combustible material
Compressed gas
89
Quantitative
Something that can be measured with our senses, not numbers
Something that can be measured using numbers, such as height
90
What was the first atomic model?
Nuclear
Planetary - like the Solar System
Plum Pudding
Billiard Ball - a Solid Sphere
91
What causes climate change?
excessive use of electronics⚡️
Greenhouse gasses and burning of fossil fuels🌪
Recycling ♻️
Excessive comsuming of food
92
What all does the atomic number tell us about an element?
The amount of just protons
The amount of just neutrons
The amount of electrons and protons in a neutral atom
The amount of just electrons
93
The biosphere
is portion of Earth that supports life
is synonomous with biology
refers to biomes
refers to biotic factors
94
Hydrosphere describes the Earth's
All of the other answers
ocean water
fresh water
precipitation
95
nutrients
B. are a source of energy
C. A only is correct
D. A & B are both correct
A. are a source of building materials
96
An extirpated species...
may become endangered if nothing is done
no longer exists in the wild in Canada
faces imminent extirpation or extinction.
may become threatened or endangered
97
What is the second trophic level?
Primary Consumers
Apex Predators
Secondary Consumers
Primary Producers
98
What model did Rutherford discover?
Quantum Mechanical
Plum Pudding
Nuclear
Solid Sphere
99
What does the modern atomic theory state?
All matter is made up of atoms
All atoms are made up of hundreds of smaller particles
Atoms of different elements are exactly the same.
Atoms of different kinds combine to form different elements
100
The atomic number is
0
3
1
2
