Praxis 5005-science practice exam #1
egwiv89
What is the main reason why no vaccine shots have been created for common cold?
a. too many causes of the common cold to develop vaccine
b. common cold has to run its coarse
c. because it is a virus
d. it contains bacteria - answer Too many causes of the common cold to develop
Explanation: Nearly 250 viruses can cause the common cold, so to develop vaccine
shots will be difficult. Options b and c are correct, but those are not the main reason.
What planet has the shortest year? - answer Mercury- a year on mercury takes only 88
earth days
How long does it take the earth to travel the sun - answerThe earth takes roughly 1 year
to complete its orbit around the Sun
Which of the following is the best option to weigh a person?
a. scale using lbs
b. scale using grams
c. dropped weight scale
d. body mass scale - answerScale using lbs
Indigenous individuals living in the tropical regions of the world had contribution to
modern science. Which practice is most significant influence to modern science?
a. using medicinal plants to treat illnesses
b. developing the compass
c. devising a plan to clean ocean water for daily use
d. improving framing practices to better the nutrients level of sand - answerA-
indigenous people had to use medicinal plants to treat illnesses. The practices used by
the indigenous people carried to modern science medicine
What is the process in which rocks are broken down into smaller fragments by the
atmosphere and other factors in the environment? - answerWeathering is the process in
which rocks are broken down into smaller fragments by the atmosphere and other
factors in the environment
Which of the following is NOT a form of energy?
a. light
b. heat
c. temperature
, d. current - answerc- temperature is a measure of hot or cold, and is not a form of
energy
Forms of energy --> light, heat, currents
Which of the following mediums results in sound to travel the fastest?
a. air
b. light
c. water
d. wire - answerd- Sound can travel faster through wire than any other option
Sound waves travel fastest through a solid material
What is true of an anthropod? - answer-arthropods have a segmented body, a tough
exoskeleton, and jointed appendages
-arthropods are surrounded by a tough external covering, or exoskeleton
-arthropods includes insects, crabs, centipedes, and spiders
Appendages - answerAppendages are jointed structures that do not extend from the
body wall
An early childhood teacher is having students drop common objects into a water table.
The teacher has the student document which item floats or sinks. Afterwards, a
discussion is held on the common properties for objects that sink and float. Which of the
following concepts is best introduced with this activity?
a. water properties
b. desnity
c. volume
d. mass - answerb. density
Density - answerDensity is mass per unit volume. Heavier objects will sink while lighter
objects float.
A cumulus cloud starts to form in a warm air mass that is ascending rapidly through a
slightly cooler air mass. What is the most logical cause of condensation in the warm air
mass? - answerA reduction in temperature caused by the reduction in atmospheric
pressure
Cumulus Clouds - answerCumulus clouds are puffy clouds that sometimes look like
pieces of floating cotton. A cumulus cloud starts to form in a warm air mass that is
ascending rapidly through a slightly cooler air mass. The reason for this is a reduction in
temperature caused by reduction in atmospheric pressure
Out of the following, what is considered a vertebrate?
a. jellyfish
b. butterfly
egwiv89
What is the main reason why no vaccine shots have been created for common cold?
a. too many causes of the common cold to develop vaccine
b. common cold has to run its coarse
c. because it is a virus
d. it contains bacteria - answer Too many causes of the common cold to develop
Explanation: Nearly 250 viruses can cause the common cold, so to develop vaccine
shots will be difficult. Options b and c are correct, but those are not the main reason.
What planet has the shortest year? - answer Mercury- a year on mercury takes only 88
earth days
How long does it take the earth to travel the sun - answerThe earth takes roughly 1 year
to complete its orbit around the Sun
Which of the following is the best option to weigh a person?
a. scale using lbs
b. scale using grams
c. dropped weight scale
d. body mass scale - answerScale using lbs
Indigenous individuals living in the tropical regions of the world had contribution to
modern science. Which practice is most significant influence to modern science?
a. using medicinal plants to treat illnesses
b. developing the compass
c. devising a plan to clean ocean water for daily use
d. improving framing practices to better the nutrients level of sand - answerA-
indigenous people had to use medicinal plants to treat illnesses. The practices used by
the indigenous people carried to modern science medicine
What is the process in which rocks are broken down into smaller fragments by the
atmosphere and other factors in the environment? - answerWeathering is the process in
which rocks are broken down into smaller fragments by the atmosphere and other
factors in the environment
Which of the following is NOT a form of energy?
a. light
b. heat
c. temperature
, d. current - answerc- temperature is a measure of hot or cold, and is not a form of
energy
Forms of energy --> light, heat, currents
Which of the following mediums results in sound to travel the fastest?
a. air
b. light
c. water
d. wire - answerd- Sound can travel faster through wire than any other option
Sound waves travel fastest through a solid material
What is true of an anthropod? - answer-arthropods have a segmented body, a tough
exoskeleton, and jointed appendages
-arthropods are surrounded by a tough external covering, or exoskeleton
-arthropods includes insects, crabs, centipedes, and spiders
Appendages - answerAppendages are jointed structures that do not extend from the
body wall
An early childhood teacher is having students drop common objects into a water table.
The teacher has the student document which item floats or sinks. Afterwards, a
discussion is held on the common properties for objects that sink and float. Which of the
following concepts is best introduced with this activity?
a. water properties
b. desnity
c. volume
d. mass - answerb. density
Density - answerDensity is mass per unit volume. Heavier objects will sink while lighter
objects float.
A cumulus cloud starts to form in a warm air mass that is ascending rapidly through a
slightly cooler air mass. What is the most logical cause of condensation in the warm air
mass? - answerA reduction in temperature caused by the reduction in atmospheric
pressure
Cumulus Clouds - answerCumulus clouds are puffy clouds that sometimes look like
pieces of floating cotton. A cumulus cloud starts to form in a warm air mass that is
ascending rapidly through a slightly cooler air mass. The reason for this is a reduction in
temperature caused by reduction in atmospheric pressure
Out of the following, what is considered a vertebrate?
a. jellyfish
b. butterfly
