TExES Core Subjects EC-6 Practice
exam science
A decrease in the population of a producer will have the most direct immediate effect on
which of the following types of organisms in a food chain? - ANS-A primary consumer
A population of mice, with both dark and light colored individuals, lived in an area of
light-colored sand. Development in the area has displaced the population to an area of
dark-colored rock. Which of the following is most likely to occur to the displaced population
in the new environment? - ANS-The proportion of light-colored mice will decrease due to
increased predation
Most likely to be warm and moist is an air mass that originates over the Gulf of Mexico or
another large body of water close to the equator. Because trees can be continuously planted
and grown to replace trees that are harvested, they are typically classified as which of the
following types of resources? - ANS-Renewable
magnitude of force required to raise a box, which is comparable to F-ling - ANS-F-lift
Members of a lizard species with longer legs were found to be better able to climb and
survive than members of a lizard species with shorter legs in a study on the climbing ability
of lizards in a specific habitat. In this instance, the longer legs are best considered which of
the following? - ANS-An adaptation
Of the following conditions, which are best for forming dew on grass? - ANS-High relative
humidity, falling temperatures
Of the following student activities which would be most useful for assessing student
understanding about the formation of the Grand Canyon? - ANS-Explaining their ordering of
a series of illustrations of the Grand Canyon at different times during its geologic history
Of the following student activities, incorporating which will most effectively help
beginning-level English-language learners' conceptual understanding during an inquiry about
organisms and their environment - ANS-Observing animals in a near by natural area
Of the following substances, which is the best conductor of electricity? - ANS-Aluminum
Of the following, which best represents for the phases of the moon as seen from the Earth?
- ANS-the motion of the moon around the earth
Of the following, which describes a chemical reaction? - ANS-The production of gas by
yeast cells during bread making
Of the following, which is a widely accepted explanation that is supported by a large body of
observational and experimental evidence? - ANS-theory
Of the following, which is most effective at engaging students in scientific inquiry? -
ANS-suggesting that students explore a solution to a problem that's relevant to everyday life
Of the following, which is most likely the result of plate tectonics? - ANS-An active volcano
Of the following, which is thought to be most responsible for the warming of Earth's
atmosphere since the late 1800's? - ANS-Increasing carbon dioxide emissions ( greenhouse
gases)
The deforestation of land along a river will most likely result in: - ANS-An increase in the
rate of soil erosion into the river (plant roots help hold soil in place)
The majority of Earth's nitrogen is found in - ANS-The atmosphere
exam science
A decrease in the population of a producer will have the most direct immediate effect on
which of the following types of organisms in a food chain? - ANS-A primary consumer
A population of mice, with both dark and light colored individuals, lived in an area of
light-colored sand. Development in the area has displaced the population to an area of
dark-colored rock. Which of the following is most likely to occur to the displaced population
in the new environment? - ANS-The proportion of light-colored mice will decrease due to
increased predation
Most likely to be warm and moist is an air mass that originates over the Gulf of Mexico or
another large body of water close to the equator. Because trees can be continuously planted
and grown to replace trees that are harvested, they are typically classified as which of the
following types of resources? - ANS-Renewable
magnitude of force required to raise a box, which is comparable to F-ling - ANS-F-lift
Members of a lizard species with longer legs were found to be better able to climb and
survive than members of a lizard species with shorter legs in a study on the climbing ability
of lizards in a specific habitat. In this instance, the longer legs are best considered which of
the following? - ANS-An adaptation
Of the following conditions, which are best for forming dew on grass? - ANS-High relative
humidity, falling temperatures
Of the following student activities which would be most useful for assessing student
understanding about the formation of the Grand Canyon? - ANS-Explaining their ordering of
a series of illustrations of the Grand Canyon at different times during its geologic history
Of the following student activities, incorporating which will most effectively help
beginning-level English-language learners' conceptual understanding during an inquiry about
organisms and their environment - ANS-Observing animals in a near by natural area
Of the following substances, which is the best conductor of electricity? - ANS-Aluminum
Of the following, which best represents for the phases of the moon as seen from the Earth?
- ANS-the motion of the moon around the earth
Of the following, which describes a chemical reaction? - ANS-The production of gas by
yeast cells during bread making
Of the following, which is a widely accepted explanation that is supported by a large body of
observational and experimental evidence? - ANS-theory
Of the following, which is most effective at engaging students in scientific inquiry? -
ANS-suggesting that students explore a solution to a problem that's relevant to everyday life
Of the following, which is most likely the result of plate tectonics? - ANS-An active volcano
Of the following, which is thought to be most responsible for the warming of Earth's
atmosphere since the late 1800's? - ANS-Increasing carbon dioxide emissions ( greenhouse
gases)
The deforestation of land along a river will most likely result in: - ANS-An increase in the
rate of soil erosion into the river (plant roots help hold soil in place)
The majority of Earth's nitrogen is found in - ANS-The atmosphere
