2015 SOL Review Part 2 Of 2 Question Preview (ID: 37248)
Part 2 Of The SOL Review For 8th Grade Science Students.
TEACHERS: click here for quick copy question ID numbers.
Which of these is most likely the result of weasels and foxes depending on the same food source?
a) The populations will compete with each other.
b) One of the populations will become herbivores.
c) Birthrates for both populations will increase.
d) New species of prey will evolve in the area.
A farmer wants to plant a crop that grows well in a marshland environment. In order to produce a good harvest, the most important characteristic this plant should have is the ability to —
a) thrive in wet soil
b) mature quickly
c) survive in dry conditions
d) attract a variety of pollinators
Which is an abiotic change in an ecosystem?
a) Plant photosynthesis rates increase.
b) Fish species populations increase.
c) Aquatic predator survival rates increase.
d) Annual rainfall totals for an area increase.
Physical and chemical weathering processes are responsible for breaking down rocks. Which of these is an example of chemical weathering by water?
a) Mineral crystals form as water evaporates from rocks.
b) Limestone reacts with acid rain and dissolves.
c) Water freezes in rock cracks and causes the rock to split.
d) Moss collects and grows on the surface of rocks.
A row on the periodic table is called a -
a) column
b) family
c) group
d) period
White-footed mice having thicker fur than cactus mice is probably influenced most by the differences in the —
a) food that they eat
b) time of day they are active
c) environmental climates where they live
d) amount of predators they encounter
During human fertilization, an egg and a sperm cell unite. Which structures in these cells carry the genes that will be transferred to the offspring?
a) Vacuoles
b) Ribosomes
c) Chromosomes
d) Cell membranes
Which facility relies on a nonrenewable source of energy?
a) A wind farm that uses wind turbines
b) A dam that uses the power of water
c) A power station that burns coal
d) A solar farm that collects sunlight
As the frequency of a wave decreases, the wave's —
a) period decreases
b) amplitude increases
c) speed decreases
d) wavelength increases
Which change will most likely increase the strength of a magnetic field produced by an electromagnet?
a) Reduce the number of turns of the coil
b) Switch the direction in which the battery is connected
c) Remove the iron nail
d) Add a battery
The physical expression of a trait in an organism is known as the —
a) chromosome
b) genotype
c) phenotype
d) double helix
Which of these represents the freezing point of water in correct SI units?
a) 0°C
b) 0°F
c) 32°F
d) -273°C
A girl kicks a soccer ball into the air. Which of these best explains why the soccer ball falls back to Earth?
a) The acceleration of the ball is unstable.
b) The motion of the ball is changed by external forces.
c) The pressure on the ball changes with altitude.
d) The force exerted on the ball is greater than gravity.
Which characteristic is common to the four outer planets in our solar system?
a) Low mass
b) High density
c) Fast revolution
d) Gaseous composition
When comparing a plant cell to an animal cell, only the plant cell will contain —
a) ribosomes
b) chromosomes
c) chloroplasts
d) mitochondria
Which of these is the best description of a typical organism in the Plant kingdom?
a) Is unicellular
b) Lacks a nucleus
c) Makes its own food
d) Lacks a cell wall
Which of these is a way that a person can help improve air quality?
a) Build a compost pile
b) Carpool with several people
c) Burn leaves in the fall
d) Use a gas-powered lawn mower
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