NC 8th Grade EOG Released Test
Questions and answers
Which is the best example of a pure substance? - ** VERIFIED ANSWERS **✔✔gold
Which statement best explains how periods on the periodic table are organized? - ** VERIFIED
ANSWERS **✔✔increasing atomic number from left to right
An ice cube is put into a heated pan. What will most likely happen to the molecules in the ice as the
ice is heated? - ** VERIFIED ANSWERS **✔✔The molecules will begin to move faster.
Which best explains why the total mass of the product(s) would be less than the
total weight of the reactant(s) after a chemical reaction? - ** VERIFIED ANSWERS **✔✔Gases
were released to the atmosphere.
Which would least likely have an impact on global climate changes? - ** VERIFIED ANSWERS
**✔✔producing energy using hydroelectric plants
Which is an example of a renewable energy resource? - ** VERIFIED ANSWERS **✔✔biomass
Which will most likely result if there is increased upwelling in a coastal area? - ** VERIFIED
ANSWERS **✔✔more aquatic life
Which best determines the health of a lake used as a source of freshwater? - ** VERIFIED
ANSWERS **✔✔its temperature and pH
A scientist finds the bones of a dinosaur. What could help the scientist determine
the approximate age of the dinosaur bones? - ** VERIFIED ANSWERS **✔✔the index fossils in
the area of the bones
, Which best describes how ice cores are important to the study of geologic history? - ** VERIFIED
ANSWERS **✔✔They contain evidence showing changes in the atmospheric composition over
time.
Why do doctors suggest that people get a flu vaccine each year? - ** VERIFIED ANSWERS
**✔✔Viruses can mutate from year to year
Which of these organisms is a producer in a marine ecosystem? - ** VERIFIED ANSWERS
**✔✔algae
Which of these careers would a student studying biotechnology most likely
pursue? - ** VERIFIED ANSWERS **✔✔agricultural research
Which best determines the number of wolves that can live in an area? - ** VERIFIED ANSWERS
**✔✔the amount of food available in the area
What happens to a population and to competition when there is a reduction of
living space? - ** VERIFIED ANSWERS **✔✔Competition strengthens while the population
contracts.
Kudzu vines grow by climbing and wrapping around trees. Trees covered by kudzu
can die because they are starved of sunlight. What type of relationship exists
between the trees and the kudzu growing on them? - ** VERIFIED ANSWERS **✔✔competition
What do transitional fossils best support? - ** VERIFIED ANSWERS **✔✔the Theory of
Biological Evolution
Tigers and household cats are members of the same family; however, their sizes
are vastly different. What is the cause of this difference? - ** VERIFIED ANSWERS
**✔✔genetics
Questions and answers
Which is the best example of a pure substance? - ** VERIFIED ANSWERS **✔✔gold
Which statement best explains how periods on the periodic table are organized? - ** VERIFIED
ANSWERS **✔✔increasing atomic number from left to right
An ice cube is put into a heated pan. What will most likely happen to the molecules in the ice as the
ice is heated? - ** VERIFIED ANSWERS **✔✔The molecules will begin to move faster.
Which best explains why the total mass of the product(s) would be less than the
total weight of the reactant(s) after a chemical reaction? - ** VERIFIED ANSWERS **✔✔Gases
were released to the atmosphere.
Which would least likely have an impact on global climate changes? - ** VERIFIED ANSWERS
**✔✔producing energy using hydroelectric plants
Which is an example of a renewable energy resource? - ** VERIFIED ANSWERS **✔✔biomass
Which will most likely result if there is increased upwelling in a coastal area? - ** VERIFIED
ANSWERS **✔✔more aquatic life
Which best determines the health of a lake used as a source of freshwater? - ** VERIFIED
ANSWERS **✔✔its temperature and pH
A scientist finds the bones of a dinosaur. What could help the scientist determine
the approximate age of the dinosaur bones? - ** VERIFIED ANSWERS **✔✔the index fossils in
the area of the bones
, Which best describes how ice cores are important to the study of geologic history? - ** VERIFIED
ANSWERS **✔✔They contain evidence showing changes in the atmospheric composition over
time.
Why do doctors suggest that people get a flu vaccine each year? - ** VERIFIED ANSWERS
**✔✔Viruses can mutate from year to year
Which of these organisms is a producer in a marine ecosystem? - ** VERIFIED ANSWERS
**✔✔algae
Which of these careers would a student studying biotechnology most likely
pursue? - ** VERIFIED ANSWERS **✔✔agricultural research
Which best determines the number of wolves that can live in an area? - ** VERIFIED ANSWERS
**✔✔the amount of food available in the area
What happens to a population and to competition when there is a reduction of
living space? - ** VERIFIED ANSWERS **✔✔Competition strengthens while the population
contracts.
Kudzu vines grow by climbing and wrapping around trees. Trees covered by kudzu
can die because they are starved of sunlight. What type of relationship exists
between the trees and the kudzu growing on them? - ** VERIFIED ANSWERS **✔✔competition
What do transitional fossils best support? - ** VERIFIED ANSWERS **✔✔the Theory of
Biological Evolution
Tigers and household cats are members of the same family; however, their sizes
are vastly different. What is the cause of this difference? - ** VERIFIED ANSWERS
**✔✔genetics
