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WorksheetsMock Test Review
Total questions: 32
Worksheet time: 16mins
In one area, a large source of prey for eagles is rabbits. If the number of rabbits suddenly decreases, what effect will it MOST likely have on the eagles?
Their numbers will increase
Their numbers will decrease
They will show new behaviors.
They will migrate from new locations.
Below is an example of a simple food chain.
acorn -squirrel - fox - mountain lion
What will MOST likely happen if squirrels are removed from the food chain?
The fox will eat acorns.
The fox population will decrease
The trees will produce fewer acorns.
The mountain lion population will increase.
Which environmental stimulus causes leaves on certain trees to change color in autumn?
loss of nutrients in the forest soil
lower air humidity in the forest
changes to amount of light
competition for survival
Which stimulus causes a responding plant to demonstrate phototropism?
intensity of light
direction of light
length of day
time of day
Mr. Harris mows his lawn twice each month. He claims that it is better to leave the clippings on the ground. Which long term effect will this MOST likely have on his lawn?
It will eventually cause the grass to stop growing.
It will prevent bacteria from invading the lawn.
It will provide the lawn with needed nutrients
It will reduce the insect population
Rain forests contain more species of trees than any other biome. However, scientists have found that the soil of the forest floor is relatively nutrient poor. What could MOST likely account for this?
The lack of weathering reduces the availability of the minerals.
The nutrients are being utilized by the plant life.
The forest floor does not get enough sunlight
The animals eat the nutrients.
A student is trying to model an ocean environment. What is the MOST important factor the student should add to the aquarium in order to make sure that the model is accurate?
starfish
seaweed
salt water
coral reef
When a volcano erupts, dust and ash are blown into the atmosphere. The eruption directly reduces the transfer of energy from
the ground to bacteria.
the Sun to plants
plants to animals.
animals to air.
Which environmental factor would MOST likely prevent an orange tree from surviving in the desert?
the lack of moisture
the high levels of heat
the extra amount of wind
the low levels of sunlight
Scientists know that Earth is constantly changing. They are familiar with the processes that are repeated daily, monthly, and yearly. Which of these is a natural event that can be predicted to occur monthly?
volcanic eruptions
earthquake activity
phases of the moon
precipitation amounts
Which two solar system objects have the LEAST amount of distance between them?
the Sun and Mars
Earth and Jupiter
the Sun and Earth
Earth and the Moon
Felicia noticed how air temperatures were cooler and there were fewer hours of daylight during some of the seasons. Which of the following contributes to these seasonal changes?
Earth rotates on its axis
Earth revolves around the Sun
The Sun has less energy in winter.
The Sun moves further from Earth in winter.
The same side of the Moon is always visible from Earth because
the Moon does not rotate on its axis.
the far side of the Moon faces Earth during the day.
the Moon makes one rotation per revolution around Earth.
the rate of rotation is the same for Earth and the Moon.
Dan knows that Earth is tilted 23.5° on its axis. Which is caused because of this tilt?
day can become night
different seasons occur
low tide can become high tide
the phases of the moon can change
Of the planets in the solar system, which characteristic is unique to planet Earth?
orbited by a moon
has a gravitational field
revolves around the Sun
covered mostly by water
Which contributes to Earth’s ability to sustain life?
The atmosphere allows all of the sun’s radiation to enter due to Earth’s distance from the sun
The atmosphere prevents all space debris from reaching the surface due to the ozone layer.
The atmosphere is extremely thin due to the temperatures of the sun.
The atmosphere is breathable due to the unique mixture of gases.
Why is a spacesuit inflated like a balloon?
to simulate the air pressure of Earth
to help astronauts float in outer space
to protect astronauts from solar radiation
to provide an oxygen supply for breathing
A telescope would be MOST useful in answering which question?
How do rockets move in space?
What shape is a human skin cell?
What is on the surface of the Moon?
How do worms breathe underground?
In 1957, the first artificial satellite was put into space. By 1969, American astronauts landed on the Moon. What MOST likely helped scientists to be able to go from launching artificial satellites to sending spacecraft to the Moon in just twelve years?
Scientists discovered a way that rockets could travel at the speed of light
Scientists improved instruments that helped calculate the distance to the Moon.
Scientists improved on the older rockets that were designed by previous engineers.
Scientists gained information that the gravity of the Moon was less than that of Earth.
Which describes a property of all elements?
All elements are metals.
All elements have six electrons.
All elements are pure substances
All elements exist in the solid phase
A sample of matter is made of identical particles. The sample could be
an element.
a molecule
an atom.
a mixture
What is the smallest particle of an element?
atom
electron
nucleus
proton
The Greek philosopher Aristotle described matter with the phrase “unable to be divided.” The modern concept that grew from Aristotle’s idea is the
atom.
proton.
neutron
electron.
The metal lid on a glass jar is hard to open, so it is held under warm, running water. What causes the jar to open easily after it was held under the water?
The water increased the pressure under the lid
The jar shrunk with the warm water.
The water acted as a lubricant between the glass and the metal.
The metal lid expanded under warm water.
When water is changed from a liquid to a gas, what occurs?
The atoms lose electrons
A new compound is formed.
Molecules spread farther apart.
Hydrogen is separated from oxygen.
At what temperature is water MOST likely to be in vapor form?
–10°C
20°C
90°C
120°C
When ice melts, it becomes a
gas.
solid.
liquid
plasma.
Anita heats a beaker containing water. As the temperature of the water increases, which change to the water molecules occurs?
The molecules move at a faster rate
The molecules become more massive.
The molecules expand and become wider.
The molecules separate into atoms of hydrogen and oxygen.
Kurt drinks frozen fruit juice from a small cup. He measures the amount of fruit juice in the cup. Which property is Kurt measuring?
density
height
temperature
volume
Materials that let electrons flow very easily from one atom to another
are called insulators.
are called conductors.
are called non-metals.
are called resistors.
An element with which property would be BEST to use in electrical wiring?
insulator
conductor
malleable
porous
What is the term for the amount of heat per unit mass required to raise the temperature of a material by one degree Celsius?
energy
matter
temperature
specific heat capacity
