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WorksheetsISAT Review
Total questions: 46
Worksheet time: 4hrs 38mins
Name
Class
Date
1.
At which position in Earth's orbit are daytime and nighttime equal?
a)
Summer
b)
Winter
c)
spring
d)
North
2.
Wind occurs when air masses move from one place to another. What causes the movement of air masses?
a)
The position of the moon
b)
The heating of the air
c)
the rotation of Earth
d)
The condensation of air
3.
What does the color of a star indicate?
a)
age
b)
size
c)
distance
d)
temperature
4.
A manufacturer is conducting research using a hammock they want to sell to consumers. The manufacturer places different amounts of mass on the hammock and observes what happens to the hammock. Which feature of the hammock is the manufacturer most likely testing?
a)
The force required to break the ropes
b)
The force required to swing the hammock
c)
the color and style preference of consumers
d)
the damage to the hammock caused by the sun
5.
Miguel wants his toy car to reach the bottom of a ramp as fast as possible. Which ramp will result in the fastest speed?
a)
a cork ramp
b)
a carpeted ramp
c)
a sandpaper ramp
d)
a wood ramp
6.
Idaho laws include rules that govern controlled burning in forested areas. How might controlled burns positively affect the environment where they are occurring?
a)
They may increase the available thermal energy as it is released as heat from fires.
b)
They may cause a rise in average annual temperature by releasing carbon dioxide.
c)
They may help limit the impact of the fires by reducing their size and frequency.
d)
They may remove old growth in forests preventing regrowth in the area.
7.
Which action can humans use to reduce the amount of water runoff that enters a river?
a)
Planting trees near the edges of the river.
b)
removing trees from the area surrounding the river
c)
building a dam to control the flow of water in the river
d)
removing dams to allow the water to flow freely in the river
8.
Which action is accomplished by chemical reactions in a ribosome?
a)
linking together amino acids
b)
linking together monosaccharides
c)
transforming lipids into carbohydrates
d)
transforming ADP molecules into ATP molecules
9.
A scientist removed a few cells from the root tips of a Venus flytrap plant. Using sterile conditions, the cells were transferred to a substance that provided both water and nutrients to the cells. The cells divided. forming a cluster of cells. The cluster of cells produced a tiny plant that grew into a typical Venus flytrap plant. Which statement best explains why the new plant was able to develop from these original cells.
a)
The original cells had all the genes that the different cells expressed.
b)
The original cells had a type of chlorophyll that could be copied during mitosis
c)
The original cells had a sample of the different types of cells that are in the mature plant.
d)
The original cells had all the necessary proteins to produce different cell types.
10.
Which type of molecule is produced during the chemical reactions that occur within a chloroplast?
a)
lipid
b)
protein
c)
amino acid
d)
carbohydrate
11.
What are the by-products of photosynthesis?
a)
O2 and Water
b)
O2 and glucose
c)
CO2 and water
d)
CO2 and glucose
12.
What is the smallest structural level of a moose?
a)
eyes
b)
cells
c)
tissues
d)
antlers
13.
A leak develops in a setting pond surrounding an abandoned mine. What changes to the local ecosystem most likely result from this leak?
a)
increase in biodiversity and increase in rate of mutations
b)
increase in biodiversity and decrease in rate of mutations
c)
decrease in biodiversity and increase in rate of mutations in surviving organisms
d)
decrease in biodiversity and decrease in rate of mutations in surviving organisms
14.
Why do scientists refer to evolution as a theory?
a)
Evolution occurred in the past and is not universally accepted.
b)
Evolution is an explanation with little supporting scientific evidence.
c)
Evidence of evolution can only be observed during laboratory experimentation.
d)
Evidence that supports evolution has been provided by many scientists over time.
15.
Use the energy pyramid below to answer the question. Which statement best explains why the total amount of available energy decreases as it flows from organisms at the bottom of the energy pyramid to organisms at the top of the energy pyramid?
a)
There is more food available at the lower levels.
b)
Most usable energy is converted to biomass.
c)
Most usable energy is lost as thermal energy resulting from cellular processes.
d)
Organisms occupying higher levels require less energy for their cellular processes.
16.
Vestigial structures are body structures that are of limited or no use to an organism. They are remnants of structures that may have been useful to the organism's ancestors. Which statement explains the most likely reason why vestigial structures can be used as evidence for biological evolution?
a)
They mutate at a predictable rate.
b)
They are commonly preserved in the fossil record.
c)
They show how individual organisms have adapted.
d)
They provide information about how species may be related.
17.
Which statement describes how using a renewable source of energy could negatively affect the environment?
a)
Obtaining energy from geothermal sources can produce radioactive waste.
b)
Obtaining energy from biomass can reduce the materials brought to landfills.
c)
Generating electricity using a hydroelectric power plant can impact migratory fish species.
d)
Generating electricity using wind power can create air pollution from particles released by wind turbines.
18.
A leak develops in a setting pond surrounding an abandoned mine. What changes to the local ecosystem most likely result from this leak?
a)
Increase in biodiversity and increase in rate of mutations
b)
Increase in biodiversity and decrease in rate of mutations.
c)
decrease in biodiversity and increase in rate of mutations in surviving organisms
d)
decrease in biodiversity and decrease in rate of mutations in surviving organisms
19.
On the Portuguese island of Maderia, six distinct species of house mice have been identified. Which statement explains how different species most likely developed?
a)
populations lived in geographically different areas off the island.
b)
Many offspring were produced over several generations on the island.
c)
Individuals changed due to different climate conditions on different parts of the island.
d)
DNA was destroyed in individuals in the original population that were brought to the island.
20.
Which pine tree has the greatest non-use of photosynthesis?
a)
a pine tree growing in a forest
b)
a pine tree blown down by a wind storm
c)
a pine tree completely burned to ashes by a forest fire
d)
a pine tree that is no longer living and partially decomposed by fungi
21.
Which statement is a lab safety rule?
a)
work in small groups.
b)
state your hypothesis
c)
carefully record all data.
d)
wear safety goggles when pouring chemicals.
22.
How many different elements are found in the chemical compound AgNO3
a)
2
b)
3
c)
4
d)
5
23.
Jenna flips a coin ten times. It lands on heads seven times and on tails three times. She concludes that a coin lands on heads more often than on tails. Why is her conclusion possibly invalid, even though it agrees with her results?
a)
Her results would probably differ if she collected more data.
b)
newton's third law of motion contradicts her conclusion.
c)
she should have flipped the coin only twice.
d)
she did not state a hypothesis
24.
Genetic engineers have developed technology that is able to manipulate the genes in some plants. Farmers use the results of this technology to grow crops that are more profitable. The genetically engineered crops can provide more food per acre, are less prone to diseases and insect damage, and are able to withstand greater environmental changes. Which question about manipulating genes in plants are scientists most likely investigating through experimentation?
a)
Should laws allow genetic modification to make plants pest resistant?
b)
Should the genes of plants be amnipulated for the benefit of humans?
c)
In which temperature range will genetically engineered plants be able to survive?
d)
Are plants that have been genetically manipulated better tasting than natural plants?
25.
Use this diagram to answer the question. What does the molecule shape represent?
a)
nucleotide
b)
adenine and thymine
c)
phosphate
d)
sugar base
26.
What are the final products of a cell that has gone through the process of meiosis?
a)
two genetically identical cells
b)
four genetically identical cells
c)
two genetically nonidentical cells
d)
four genetically nonidentical cells
27.
Work = force X distance A girl weighs 200 newtons. How much work does she do climbing 10 meters of steps? (joules are multiplied together the steps and weight)
a)
20 joules
b)
190 joules
c)
210 joules
d)
2000 joules
28.
A politician supports a bill to increase the drilling of offshore oil wells. What is the most likely reason that he supports the bill?
a)
Hurricanes offshore could cause oil pollution.
b)
Offshore wildlife will increase in numbers.
c)
People would have more oil
d)
Beaches along the shore could be polluted.
29.
In 2 seconds, a ball travels 100 cm. What is the average speed of the ball?
a)
25 cm/sec
b)
50 cm/sec
c)
100 cm/sec
d)
200 cm/sec
30.
In the picture, which feature is most useful in classifying this leaf as a dicot?
a)
the main vein going through the middle of the leaf
b)
the stem on the left hand side of the diagram
c)
the leaf itself
d)
the veining going through both sides of the leaf and offshoots from the main vein
31.
Which structure makes a plant cell rigid?
a)
chromosome
b)
chloroplast
c)
cell wall
d)
cell membrane
32.
After a recent experiment, a scientist noticed that the computer simulation varied from the actual experiment. What should the scientist do?
a)
Repeat the experiment several times in order to verify the results.
b)
Adjust the computer's program so it matches the actual results.
c)
Ignore the actual results as inaccurate because computers are very precise.
d)
Ignore the simulation as inaccurate because of a possible computer virus.
33.
A scientific illustrator was asked to draw the human digestive system. Knowledge of which branch of science would help her the most?
a)
Paleontology
b)
Geology
c)
Ecology
d)
Anatomy
34.
Why does the moon have more effect on the tides than the sun?
a)
The moon is more dense than the sun.
b)
The moon is in motion in space, while the sun is not.
c)
The moon is larger than the sun.
d)
The moon is nearer to Earth than the sun
35.
DNA testing is important in ---
a)
architecture
b)
banking
c)
law enforcement
d)
computer programing
36.
New studies on a drug that regulates blood pressure show that it can cause harmful side effects if used for many years. What should the manufacturer do?
a)
Inform the public and remove the drug from the market immediately.
b)
Ignore the new studies because all drugs have harmful long-term side effects.
c)
Market the drug under a new name to avoid bad publicity.
d)
Destroy the new results.
37.
This is a diagram of a genetic cross. In elephants, attractive tusks (A) are dominant to ugly (a) tusks which is recessive. What type of tusks are the elephant's offspring?
a)
All attractive
b)
All ugly
c)
Mostly attractive with some ugly
d)
Mostly ugly with some attractive
38.
This is a diagram of a genetic cross. In elephants, attractive tusks (A) are dominant to ugly (a) tusks which is recessive. What type of tusks are the elephant's offspring?
a)
All attractive
b)
All ugly
c)
Mostly attractive with some ugly
d)
Mostly ugly with some attractive
39.
Which statement best describes the formation of a cloud?
a)
Cloud formation is an independent part of a single system called the biosphere.
b)
cloud formation is part of the water cycle that operates within the larger energy system of Earth
c)
Cloud formation is a system that is not linked to any other system in the atmosphere
d)
Cloud formation is one part of the water cycle that is independent of the other parts of the cycle.
40.
A gardener is investigating whether Brand X fertilizer will increase the growth rate of rose plants growing in an outdoor garden. Which rose plant would be the control for this investigation?
a)
a rose plant in the garden given water, and sunlight
b)
a rose plant in the garden given Brand X fertilizer, water, and sunlight
c)
a rose plant in a container given Brand X fertilizer and placed inside a greenhouse
d)
a rose plant in a container given only water and sunlight and placed inside a greenhouse
41.
How much does this cylinder hold?
a)
3 cubic centimeters
b)
3.4 cubic centimeters
c)
2.8 cubic centimeters
d)
3.5 cubic centimeters
42.
A Euglena contains a structure called a flagellum (#1) What is the function of the flagellum?
a)
reproduction
b)
movement
c)
protection
d)
food gathering
43.
The water, carbon, and nitrogen cycles share patterns in the flow of matter and energy through ecosystems. What 2 things do each of these cycles have in common?
a)
producers and energy
b)
going around in a circle and pyramid
c)
matter and patterns
d)
decomposers and consumers
44.
What are the by products of photosynthesis?
a)
CO2 and H2O
b)
glucose (C6H12O6) and CO2
c)
energy and matter
d)
C6H1206 and O2
45.
What is on the 2nd tier of the energy pyramid?
a)
producers
b)
1st order consumers or primary consumers
c)
2nd order consumers or secondary consumers
d)
decomposers
46.
What is natural selection?
a)
when nature selects what dominant traits survive
b)
Charles Darwin, made it up
c)
4 parts 1. overproduction, 2. variation, 3. adaptation, 4 selection
d)
traits that a species want to have
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