Praxis Test Form 3 Science 5005 Exam with Questions and Answers
A neutral atom becomes a positive ion when it loses one or more - ✔✔✔-electrons
A teacher rubs an inflated balloon with a wool cloth and then holds the balloon over bits of
paper that are lying on a table. The students in the class watch as the bits of paper rise from the
table toward the balloon. Which of the following hypotheses is best supported by the observed
interaction between the balloon and the bits of paper? - ✔✔✔-The balloon has an electrostatic
charge
An animal is found to have the following characteristics.
It has a backbone.
It has soft, moist skin covered by a slippery layer of mucus.
It goes through complete metamorphosis in its life cycle.
It lives part of its life in water and part of its life on land.
To which of the following groups does the animal most likely belong? - ✔✔✔-Amphibians
An object is moving in a straight line at a constant speed. What will happen if a constant force is
then applied to the object in the same direction in which the object is moving? - ✔✔✔-The
object will continue moving in the same direction but will speed up
As a rock begins tumbling down a hillside, most of its gravitational potential energy is converted
into - ✔✔✔-kinetic energy
As part of a unit on plate tectonics, students use various materials to construct physical models
of Earth's layered structure. The students will use the models to explore how the separate
plates of the lithosphere, Earth's solid outer layer, move over the asthenosphere, the partially
molten upper portion of Earth's mantle, over geologic time.
Based on the description provided, which of the following materials would best represent the
asthenosphere? - ✔✔✔-Soft wax that can bend or stretch without breaking
Bread molds belong to which of the following groups of organisms? - ✔✔✔-Fungi
, Praxis Test Form 3 Science 5005 Exam with Questions and Answers
CH4(g)+2O2(g)→CO2(g)+2H2O(g)CH4(g)+2O2(g)→CO2(g)+2H2O(g)
The balanced chemical equation shown above represents a reaction between methane
( CH4CH4) and oxygen ( O2O2) that produces carbon dioxide ( CO2CO2) and water ( H2OH2O).
Based on the balanced chemical equation, how many molecules of oxygen react with each
molecule of methane? - ✔✔✔-two
During a total solar eclipse, the Moon is in which of the following phases? - ✔✔✔-New moon
In a demonstration of the Doppler effect, an observer who is standing still will most likely hear a
sound's pitch increase when the source of the sound does which of the following? - ✔✔✔-
Moves toward the observer
In an activity, students create models of landscapes by cutting two-liter plastic bottles in half
lengthwise and filling them with different combinations of soil, sand, pebbles, and small plants.
After positioning the models at an angle, the students pour equal amounts of water onto each
model's raised end and collect the runoff in beakers placed under each model's lower end. The
students then determine the dry mass of the sediment contained in the runoff from each
model.
Which of the following scientific questions can the students investigate most directly in the
activity described? - ✔✔✔-What are some factors that affect erosion?
In an activity, students filled two identical containers with equal volumes of either freshwater or
salt water. The students then placed different objects, one at a time, in the containers and
observed whether the objects sank or floated. Which of the following statements best accounts
for an observation that the same object sank in the freshwater but floated in the salt water? -
✔✔✔-The salt water was denser than the freshwater
In an investigation of the rusting process, students soaked a sample of steel wool in vinegar for
approximately 1 minute. After removing the steel wool from the vinegar, the students squeezed
it and blotted it with a paper towel. The students then wrapped the steel wool around the bulb
of a thermometer and placed the steel wool and thermometer together in a covered beaker to
A neutral atom becomes a positive ion when it loses one or more - ✔✔✔-electrons
A teacher rubs an inflated balloon with a wool cloth and then holds the balloon over bits of
paper that are lying on a table. The students in the class watch as the bits of paper rise from the
table toward the balloon. Which of the following hypotheses is best supported by the observed
interaction between the balloon and the bits of paper? - ✔✔✔-The balloon has an electrostatic
charge
An animal is found to have the following characteristics.
It has a backbone.
It has soft, moist skin covered by a slippery layer of mucus.
It goes through complete metamorphosis in its life cycle.
It lives part of its life in water and part of its life on land.
To which of the following groups does the animal most likely belong? - ✔✔✔-Amphibians
An object is moving in a straight line at a constant speed. What will happen if a constant force is
then applied to the object in the same direction in which the object is moving? - ✔✔✔-The
object will continue moving in the same direction but will speed up
As a rock begins tumbling down a hillside, most of its gravitational potential energy is converted
into - ✔✔✔-kinetic energy
As part of a unit on plate tectonics, students use various materials to construct physical models
of Earth's layered structure. The students will use the models to explore how the separate
plates of the lithosphere, Earth's solid outer layer, move over the asthenosphere, the partially
molten upper portion of Earth's mantle, over geologic time.
Based on the description provided, which of the following materials would best represent the
asthenosphere? - ✔✔✔-Soft wax that can bend or stretch without breaking
Bread molds belong to which of the following groups of organisms? - ✔✔✔-Fungi
, Praxis Test Form 3 Science 5005 Exam with Questions and Answers
CH4(g)+2O2(g)→CO2(g)+2H2O(g)CH4(g)+2O2(g)→CO2(g)+2H2O(g)
The balanced chemical equation shown above represents a reaction between methane
( CH4CH4) and oxygen ( O2O2) that produces carbon dioxide ( CO2CO2) and water ( H2OH2O).
Based on the balanced chemical equation, how many molecules of oxygen react with each
molecule of methane? - ✔✔✔-two
During a total solar eclipse, the Moon is in which of the following phases? - ✔✔✔-New moon
In a demonstration of the Doppler effect, an observer who is standing still will most likely hear a
sound's pitch increase when the source of the sound does which of the following? - ✔✔✔-
Moves toward the observer
In an activity, students create models of landscapes by cutting two-liter plastic bottles in half
lengthwise and filling them with different combinations of soil, sand, pebbles, and small plants.
After positioning the models at an angle, the students pour equal amounts of water onto each
model's raised end and collect the runoff in beakers placed under each model's lower end. The
students then determine the dry mass of the sediment contained in the runoff from each
model.
Which of the following scientific questions can the students investigate most directly in the
activity described? - ✔✔✔-What are some factors that affect erosion?
In an activity, students filled two identical containers with equal volumes of either freshwater or
salt water. The students then placed different objects, one at a time, in the containers and
observed whether the objects sank or floated. Which of the following statements best accounts
for an observation that the same object sank in the freshwater but floated in the salt water? -
✔✔✔-The salt water was denser than the freshwater
In an investigation of the rusting process, students soaked a sample of steel wool in vinegar for
approximately 1 minute. After removing the steel wool from the vinegar, the students squeezed
it and blotted it with a paper towel. The students then wrapped the steel wool around the bulb
of a thermometer and placed the steel wool and thermometer together in a covered beaker to
