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PRAXIS SCIENCE 5905 PRACTICE EXAM NEWEST
COMPLETE 400 QUESTIONS AND VERIFIED ANSWERS
ALREADY GRADED A+
The sun melted an ice cream bar. What changed regarding the
physical properties? - answer-the arrangement of molecules had
changed
What is the best analogy for voltage in a circruit? - answer-the
height difference between the top and bottom of a hill
Example of homeostasis - answer-a persons blood pressure is too
high and their brain sends a signal to slow their heart
What are aquifers? - answer-an aquifer is a body of rock and/or
sediment that holds groundwater (water held underground) (goes
through porous rock)
What is cellular respiration? Metabolic process that occurs in all
living organisms to convert chemical energy from nutrients to atp.
- answer-aerobic process*organisms use oxygen to break down
food molecules to get energy
Stages of cellular respiration: - answer-1. Glycolysis (cytoplasm)2.
Krebs cycle (mitochondria)3. Electron transport chain
(mitochondria)
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What is the most prominent element in earth's atmosphere? -
answer-nitrogen
Moh's test kit - answer-tests mineral hardness(used by scratching
it with the point of an object)
What animal is a terrestrial vertebra with scales? - answer-snake
What animal has hollow bones and no teeth? - answer-birds
What would occur if we had no moon? - answer-tide changes in
the ocean
What is resource converdation from waste that extracts reusable
goods called? - answer-recycling
What happens when magma pushes through the crust under the
ocean? - answer-trenches are formed
Electrons - answer-negative
Protons - answer-positive
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Neutrons - answer-neutral
What do electrons do? - answer-determine the atom's chemical
properties
What do protons do? - answer-make up the nucleus of an atom
What do neutrons do? - answer-stabilize the nucleus
Density- - answer-d= m/v : density is the measure of how much
matter occupies a given amount of space.
Mass- - answer-m = d x v: mass is the amount of matter in an
object or its resistance to a change in position or speed in
response to a force.
Volume- - answer-v= m / d : the amount of space that a
substance or object occupied by a 3d solid.
Charles darwin - answer-proposed the theory of evolution by
natural selection** (all species change over time, share a
common ancestor, and give rise to new species.)
Most widely accepted theory of creation? - answer-big bang
theory
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What is the idea of the big bang theory? - answer-the universe
began as a simple point, then expanded and stretched to grow as
large as it is now.
Gravitational pulls: - answer-which objects has the greatest
gravity (moon, you, sun, earth) ?
How can we calculate a gravitational pull? - answer-newton's law
of universal gravitation
What is earth's gravitational force? The force between earth and
another massive object. - answer-it is indirectly proportional to
the two masses and inversely proportional to the distance
between them.
For liquids in a closed container, the mass will: - answer-: stay
the same - (mass is in intrinsic property)
Surface salinity: - answer-- the salinity of seawater at the ocean
surface.-surface salinity can be changed by precipitation
(decreases salinity) and evaporation (increased salinity)
Chemical: - answer-matter changes and at least one new
substance is formed.possible characteristics: produces heat, light,
PRAXIS SCIENCE 5905 PRACTICE EXAM NEWEST
COMPLETE 400 QUESTIONS AND VERIFIED ANSWERS
ALREADY GRADED A+
The sun melted an ice cream bar. What changed regarding the
physical properties? - answer-the arrangement of molecules had
changed
What is the best analogy for voltage in a circruit? - answer-the
height difference between the top and bottom of a hill
Example of homeostasis - answer-a persons blood pressure is too
high and their brain sends a signal to slow their heart
What are aquifers? - answer-an aquifer is a body of rock and/or
sediment that holds groundwater (water held underground) (goes
through porous rock)
What is cellular respiration? Metabolic process that occurs in all
living organisms to convert chemical energy from nutrients to atp.
- answer-aerobic process*organisms use oxygen to break down
food molecules to get energy
Stages of cellular respiration: - answer-1. Glycolysis (cytoplasm)2.
Krebs cycle (mitochondria)3. Electron transport chain
(mitochondria)
,2|Page
What is the most prominent element in earth's atmosphere? -
answer-nitrogen
Moh's test kit - answer-tests mineral hardness(used by scratching
it with the point of an object)
What animal is a terrestrial vertebra with scales? - answer-snake
What animal has hollow bones and no teeth? - answer-birds
What would occur if we had no moon? - answer-tide changes in
the ocean
What is resource converdation from waste that extracts reusable
goods called? - answer-recycling
What happens when magma pushes through the crust under the
ocean? - answer-trenches are formed
Electrons - answer-negative
Protons - answer-positive
,3|Page
Neutrons - answer-neutral
What do electrons do? - answer-determine the atom's chemical
properties
What do protons do? - answer-make up the nucleus of an atom
What do neutrons do? - answer-stabilize the nucleus
Density- - answer-d= m/v : density is the measure of how much
matter occupies a given amount of space.
Mass- - answer-m = d x v: mass is the amount of matter in an
object or its resistance to a change in position or speed in
response to a force.
Volume- - answer-v= m / d : the amount of space that a
substance or object occupied by a 3d solid.
Charles darwin - answer-proposed the theory of evolution by
natural selection** (all species change over time, share a
common ancestor, and give rise to new species.)
Most widely accepted theory of creation? - answer-big bang
theory
, 4|Page
What is the idea of the big bang theory? - answer-the universe
began as a simple point, then expanded and stretched to grow as
large as it is now.
Gravitational pulls: - answer-which objects has the greatest
gravity (moon, you, sun, earth) ?
How can we calculate a gravitational pull? - answer-newton's law
of universal gravitation
What is earth's gravitational force? The force between earth and
another massive object. - answer-it is indirectly proportional to
the two masses and inversely proportional to the distance
between them.
For liquids in a closed container, the mass will: - answer-: stay
the same - (mass is in intrinsic property)
Surface salinity: - answer-- the salinity of seawater at the ocean
surface.-surface salinity can be changed by precipitation
(decreases salinity) and evaporation (increased salinity)
Chemical: - answer-matter changes and at least one new
substance is formed.possible characteristics: produces heat, light,
