Praxis 5005 Science Study Guide | Actual study
Questions and verified Answers (Already Passed) | A+
Graded | 2026 Updates | 100% correct
what system produces, stores, and secretes hormones carried by the circulatory system? -
ANSWER- endocrine system
which is the least found in the atmosphere from carbon, nitrogen, hydrogen, and oxygen? -
ANSWER- hydrogen
what is the milky way? - ANSWER- a galaxy in which we live, is a spiral shaped galaxy that
contains hundred billion stars including our sun
how do you neutralize a 5 ph item? - ANSWER- water, natural solution
what is responsible for most of our fresh water? - ANSWER- glaciers
what happens if you rub two balloons with wool cloth? - ANSWER- when rubbing the balloon
with wool cloth it puts a negative charge on the balloon. therefore since only positive and
negative charges attract the two balloons will repel each other
if a chemical reaction occurs between two liquids will the mass change? - ANSWER- no
an example of asexual reproduction: - ANSWER- bacteria cell reproducing on its own identical
cells
What are stratus clouds? - ANSWER- flat like a sheet, usually means overcast
what are cumulus clouds? - ANSWER- like cotton ball, known as weather clouds
What are cirrus clouds? - ANSWER- feather like, usually means a storm
what forms over a large body of water? - ANSWER- maritime air mass
what are 3 facts about DNA? - ANSWER- bundled in chromosomes, double helix structure,
responsible for transmitting genetic information, found in nucleus
who is known for vaccinations and pasteurizations? - ANSWER- louis pasteur
when did the first human appear? - ANSWER- 11:58
,which elements are found in the sun? - ANSWER- hydrogen and helium
why would an object sink in freshwater but float in saltwater? - ANSWER- salt water is denser
than freshwater
Which of the following biomes has the greatest diversity of species? - ANSWER- tropical rain
forest
what is population density? - ANSWER- number of individuals in a specific unit area
what is speed with direction? - ANSWER- velocity
what is the force used to move mass over distance? - ANSWER- work
Which body system transports food and water waste? - ANSWER- circulatory system
what are the tiny openings or pores in plant tissue that deal with water vapor and control the
rate of gas exchange? - ANSWER- stoma/stomata
where is the ring of fire located? - ANSWER- Pacific Ocean
Where are the most recently formed parts of earth's crust found? - ANSWER- mid ocean
ridges
what do most gas giants consist of? - ANSWER- hydrogen and helium
what is the motions of glaciers caused by? - ANSWER- erosion
how do animals keep warm? - ANSWER- shivering, fluffing out coat, and contracting blood
vessels
what is absolute magnitude? - ANSWER- light emitted by a star
what is chemical weathering? - ANSWER- air and water
what is mechanical weathering? - ANSWER- temperature
why does cold water float beneath warm water? - ANSWER- cold water has a higher density
what helps create fossils? - ANSWER- animal bones, water, mud, silt
What are vacuoles? - ANSWER- Membrane bound, help with protection storage, waste
disposal, growth
what causes day and night? - ANSWER- Earth's rotation on its axis
,what is the basic structure of every living organism? - ANSWER- cell
what causes days/time on other planets to be different? - ANSWER- axis tilt
what is a galaxy? - ANSWER- cluster of stars, dust, and gas
when water boils what does it release? - ANSWER- water vapor
what part of the digestive system manufactures insulin? - ANSWER- pancreas
what represents the amount of space something takes up? - ANSWER- volume
What is a non-renewable energy source? - ANSWER- uranium
what is the theory for the foundation of the universe? - ANSWER- the big bang theory
what has a Exoskeleton and jointed back legs? - ANSWER- arthropod
ex: spider & butterfly
What is a communicable disease? - ANSWER- One that is spread from one person to another
through blood, breathing in an airborne virus or being bitten by a bug. (The flu)
how does a neutral atom become a positive ion? - ANSWER- when it loses one or more of its
electrons
what does a food web show? - ANSWER- how energy moves
what is a trench? - ANSWER- develop in the ocean at the convergent boundary between two
tectonic plates.
what is a thrust fault? - ANSWER- a break in the Earths crust, which older rocks are pushed
above younger rocks.
What is Chlorophyll's role? - ANSWER- to absorb energy for photosynthesis
what is first to colonize an existing community that has been devasted by fire? - ANSWER-
grasses and low growing shrubs
Latitude is an indication of? - ANSWER- North or south of earth's equator
what are aquifers? - ANSWER- Groundwater found underground in porous rock
what is breaking of rock into small pieces? - ANSWER- sediment
what is true about electrons? - ANSWER- the play a major role in chemical bonding
, what causes carbon dioxide in the atmosphere? - ANSWER- volcanic activity and burning
fossil fuels
what was the first fossil found? - ANSWER- amphibian
what is the largest ocean? - ANSWER- pacific ocean
What is inertia? - ANSWER- The tendency of an object to resist a change in motion
how long does it take the moon to go through it's phases? - ANSWER- 29.5 days
which planet has the longest year? - ANSWER- Neptune
what is rock worn away by? - ANSWER- wind, temperature, water
what happens when weathering occurs? - ANSWER- when water, temperature, & wind wear
away at rock breaking it into small pieces called sediment
what are some common minerals? - ANSWER- diamonds, gold, copper, nickel, lead
what increases as you go deeper in the ocean? - ANSWER- pressure
what is refraction? - ANSWER- the bending of LIGHT when it moves from a less dense
medium (air) to a more dense medium
which life forms in eukaryote cells? - ANSWER- plants and animals
how do you find speed? - ANSWER- distance divided by time
What does the excretory system do? - ANSWER- removes waste from the body
What does the endocrine system do? - ANSWER- secretes hormones
What is an ecosystem? - ANSWER- group of all biotic and abiotic components in a specific
area
what is a covalent bond? - ANSWER- involves the sharing of one or more pairs of electrons
between two atoms
what is an example of a biome? - ANSWER- tropical rain forest
what does a nuclear power plant do? - ANSWER- releases only water vapor into the
atmosphere
which life forms in prokaryote cells? - ANSWER- bacteria and virus
Questions and verified Answers (Already Passed) | A+
Graded | 2026 Updates | 100% correct
what system produces, stores, and secretes hormones carried by the circulatory system? -
ANSWER- endocrine system
which is the least found in the atmosphere from carbon, nitrogen, hydrogen, and oxygen? -
ANSWER- hydrogen
what is the milky way? - ANSWER- a galaxy in which we live, is a spiral shaped galaxy that
contains hundred billion stars including our sun
how do you neutralize a 5 ph item? - ANSWER- water, natural solution
what is responsible for most of our fresh water? - ANSWER- glaciers
what happens if you rub two balloons with wool cloth? - ANSWER- when rubbing the balloon
with wool cloth it puts a negative charge on the balloon. therefore since only positive and
negative charges attract the two balloons will repel each other
if a chemical reaction occurs between two liquids will the mass change? - ANSWER- no
an example of asexual reproduction: - ANSWER- bacteria cell reproducing on its own identical
cells
What are stratus clouds? - ANSWER- flat like a sheet, usually means overcast
what are cumulus clouds? - ANSWER- like cotton ball, known as weather clouds
What are cirrus clouds? - ANSWER- feather like, usually means a storm
what forms over a large body of water? - ANSWER- maritime air mass
what are 3 facts about DNA? - ANSWER- bundled in chromosomes, double helix structure,
responsible for transmitting genetic information, found in nucleus
who is known for vaccinations and pasteurizations? - ANSWER- louis pasteur
when did the first human appear? - ANSWER- 11:58
,which elements are found in the sun? - ANSWER- hydrogen and helium
why would an object sink in freshwater but float in saltwater? - ANSWER- salt water is denser
than freshwater
Which of the following biomes has the greatest diversity of species? - ANSWER- tropical rain
forest
what is population density? - ANSWER- number of individuals in a specific unit area
what is speed with direction? - ANSWER- velocity
what is the force used to move mass over distance? - ANSWER- work
Which body system transports food and water waste? - ANSWER- circulatory system
what are the tiny openings or pores in plant tissue that deal with water vapor and control the
rate of gas exchange? - ANSWER- stoma/stomata
where is the ring of fire located? - ANSWER- Pacific Ocean
Where are the most recently formed parts of earth's crust found? - ANSWER- mid ocean
ridges
what do most gas giants consist of? - ANSWER- hydrogen and helium
what is the motions of glaciers caused by? - ANSWER- erosion
how do animals keep warm? - ANSWER- shivering, fluffing out coat, and contracting blood
vessels
what is absolute magnitude? - ANSWER- light emitted by a star
what is chemical weathering? - ANSWER- air and water
what is mechanical weathering? - ANSWER- temperature
why does cold water float beneath warm water? - ANSWER- cold water has a higher density
what helps create fossils? - ANSWER- animal bones, water, mud, silt
What are vacuoles? - ANSWER- Membrane bound, help with protection storage, waste
disposal, growth
what causes day and night? - ANSWER- Earth's rotation on its axis
,what is the basic structure of every living organism? - ANSWER- cell
what causes days/time on other planets to be different? - ANSWER- axis tilt
what is a galaxy? - ANSWER- cluster of stars, dust, and gas
when water boils what does it release? - ANSWER- water vapor
what part of the digestive system manufactures insulin? - ANSWER- pancreas
what represents the amount of space something takes up? - ANSWER- volume
What is a non-renewable energy source? - ANSWER- uranium
what is the theory for the foundation of the universe? - ANSWER- the big bang theory
what has a Exoskeleton and jointed back legs? - ANSWER- arthropod
ex: spider & butterfly
What is a communicable disease? - ANSWER- One that is spread from one person to another
through blood, breathing in an airborne virus or being bitten by a bug. (The flu)
how does a neutral atom become a positive ion? - ANSWER- when it loses one or more of its
electrons
what does a food web show? - ANSWER- how energy moves
what is a trench? - ANSWER- develop in the ocean at the convergent boundary between two
tectonic plates.
what is a thrust fault? - ANSWER- a break in the Earths crust, which older rocks are pushed
above younger rocks.
What is Chlorophyll's role? - ANSWER- to absorb energy for photosynthesis
what is first to colonize an existing community that has been devasted by fire? - ANSWER-
grasses and low growing shrubs
Latitude is an indication of? - ANSWER- North or south of earth's equator
what are aquifers? - ANSWER- Groundwater found underground in porous rock
what is breaking of rock into small pieces? - ANSWER- sediment
what is true about electrons? - ANSWER- the play a major role in chemical bonding
, what causes carbon dioxide in the atmosphere? - ANSWER- volcanic activity and burning
fossil fuels
what was the first fossil found? - ANSWER- amphibian
what is the largest ocean? - ANSWER- pacific ocean
What is inertia? - ANSWER- The tendency of an object to resist a change in motion
how long does it take the moon to go through it's phases? - ANSWER- 29.5 days
which planet has the longest year? - ANSWER- Neptune
what is rock worn away by? - ANSWER- wind, temperature, water
what happens when weathering occurs? - ANSWER- when water, temperature, & wind wear
away at rock breaking it into small pieces called sediment
what are some common minerals? - ANSWER- diamonds, gold, copper, nickel, lead
what increases as you go deeper in the ocean? - ANSWER- pressure
what is refraction? - ANSWER- the bending of LIGHT when it moves from a less dense
medium (air) to a more dense medium
which life forms in eukaryote cells? - ANSWER- plants and animals
how do you find speed? - ANSWER- distance divided by time
What does the excretory system do? - ANSWER- removes waste from the body
What does the endocrine system do? - ANSWER- secretes hormones
What is an ecosystem? - ANSWER- group of all biotic and abiotic components in a specific
area
what is a covalent bond? - ANSWER- involves the sharing of one or more pairs of electrons
between two atoms
what is an example of a biome? - ANSWER- tropical rain forest
what does a nuclear power plant do? - ANSWER- releases only water vapor into the
atmosphere
which life forms in prokaryote cells? - ANSWER- bacteria and virus
