WorksheetsLove, Frog and Water
Total questions: 52
Worksheet time: 1hrs 3mins
Which of the following steps in making a
cup of coffee involves a chemical change
in matter?
Whole-bean coffee is ground in a
coffee grinder.
A burner on a propane stove is
lighted to heat water.
Water in a kettle begins to boil.
Boiling water is poured through a
filter containing ground coffee.
Use the section of the periodic table above to answer the question that follows:
Which of the elements in the section of the periodic table shown above are likely to have the most similar chemical properties?
Si and Ge
C and O
S and B
N and S
Which of the following liquids is the most acidic and will have the lowest pH?
Milk
Household Amonia
Distilled Water
Vinegar
C14 is an isotope of C12. Both carbon atoms have an atomic number of six. Which of the following is the main
difference between these two types of carbon atom?
The C14 atom has eight neutrons and the C12 atom has six neutrons.
The C14 atom has fourteen electrons and the C12 atom has twelve electrons.
The C14 atom has eight protons and the C12 atom has six protons.
The C14 atom has fourteen neutrons and the C12 atom has twelve neutrons.
Use the table to answer the question that follows.
Which line in the table above accurately lists the mass, charge, and location of a proton?
Line 1
Line 2
Line 3
Line 4
Which of the following is the best example of the refraction of light waves?
Markings on flowers that are invisible in normal light can be seen in ultraviolet light.
Deep lakes appear to be blue or green in color.
Sunlight striking a black box will make the box warmer than the same light striking a white box.
Light passing through raindrops produces a rainbow.
Newton's third law of motion states that for every action there is an equal and opposite reaction. Which of the following is the best example of the application of this law?
More fuel is needed to drive a truck ten miles when it is loaded than when it is unloaded.
An inflated balloon moves through the air when a jet of air leaves its neck as it deflates.
Less force is needed to pull a sled over ice than is needed to pull it over sand.
A passenger in a car continues moving forward when the car stops suddenly.
Which of the following examples best demonstrates the difference between thermal energy and temperature?
A cup of water at 50°C contains less thermal energy than a bathtub full of water at 10°C.
The same amount of water loses heat faster if it is in a tall, narrow bottle than if it is in a short, wide bottle.
A dark-colored object gets warmer in the sun than a light-colored object.
A person feels cooler on a cold day when the wind is blowing.
A large round boulder is pushed from the top of a smooth steep hill and rolls to the bottom. Which of the following graphs shows the distance the boulder travels with respect to time as it rolls down the hill?
The stems of a bunch of just-cut white flowers are immersed in a container of water to which blue dye has been added. After 24 hours, 2 tablespoons of salt are added to the water. Twenty-four hours later the flowers will most likely appear:
wilted and light blue.
fresh and white.
wilted and white.
fresh and light blue.
Use the diagram to answer the question that follows.
Which chamber of the heart labeled in the diagram above is primarily responsible for pumping blood to most of the organs and tissues of the body?
left atrium
left ventricle
right atrium
right ventricle
Which of the following statements best explains how carbon plays a central role in the functioning of biological systems?
Carbon actively transports nutrients and wastes across cell membranes.
Carbon insulates nerves because it has very low electrical conductivity.
Carbon combines with a large number of other elements to form a variety of useful compounds.
Carbon transports oxygen through the bloodstream to the cells of the body.
Certain species of acacia trees have long hollow thorns that house stinging ants. The ants feed on nectar produced by the tree and attack anything that touches the tree. The relationship between the ants and the acacias is an example of:
mutualism.
parasitism.
commensalism.
predation.
Use the information to answer questions 14 and 15.
The diagram is a generalized energy pyramid for a freshwater swamp and surrounding forest in a mild, temperate climate. The swamp is dominated by reeds and other swamp grasses, with various shrubs and trees on the higher ground. A large number of animal species, ranging in size from small insects to deer, are present in the swamp and forest.
The energy pyramid is narrower at the top than at the bottom because organisms at the higher levels:
exploit a narrower range of environmental resources than the organisms at the lower levels.
are larger and require less energy per unit of body mass than the organisms at the lower levels.
have less energy available to them than organisms at the lower levels.
are more efficient at producing energy from sunlight than the organisms at the lower levels.
Use the information to answer questions 14 and 15.
The diagram is a generalized energy pyramid for a freshwater swamp and surrounding forest in a mild, temperate climate. The swamp is dominated by reeds and other swamp grasses, with various shrubs and trees on the higher ground. A large number of animal species, ranging in size from small insects to deer, are present in the swamp and forest.
Which of the following environmental factors is likely most important in determining the distribution of the plant species within the swamp-forest ecosystem described?
carbon dioxide level
soil moisture
herbivores
cloud cover
Some species of aphids can reproduce asexually under certain conditions. Female aphids produce other female aphids without being fertilized by a male. This asexual reproduction may continue over many generations during the summer. In late summer or early fall, male aphids are produced and sexual reproduction resumes. Which of the following is most likely to be an advantage to a female aphid asexually reproducing during the summer?
Competition for food increases in summer, and the aphid's offspring aid in defending resources.
Unstable environmental conditions in summer make it difficult for a female aphid to travel in order to find mates.
A female can replicate her genes very rapidly by producing large numbers of identical offspring when food is plentiful in summer.
A female aphid passes down favorable mutations to her offspring in the summer when temperatures are high.
In which of the following cases of cell division is the amount of genetic material halved?
A bacterium undergoes fission to produce two cells.
Cells in the tail stump of a lizard divide and produce a new tail after the original tail is lost to a predator.
A cell in the testes of a male sparrow divides and produces four sperm.
An ovum in a female mouse divides shortly after being fertilized by a sperm from a male mouse.
When a seed germinates, its roots will grow down and its shoots will grow up, even if the seed is planted upside down. This downward growth of roots and upward growth of shoots is due to the plant's response to:
gravity.
light.
temperature
moisture.
According to the diagram above, which of the following statements about the full moon is true?
A lunar eclipse is visible somewhere on Earth whenever there is a full moon.
The full moon is never in the sky at the same time as the sun.
The moon always appears full somewhere on Earth.
A full moon occurs whenever the moon is closest to Earth.
The shape of the Milky Way galaxy is best described as:
a flat central disk with rotating spiral arms.
a spherical cloud of uniformly distributed matter.
a long, thin ribbon with ragged edges.
an irregular cluster with multiple concentrations of matter.
During the Loma Prieta Earthquake of 1989, homes located nearest to San Francisco Bay generally sustained worse damage than similar homes further from the bay. The severity of the damage sustained by homes nearest to the bay is most likely due to the:
presence of active faults that roughly parallel the shoreline.
intensity of secondary shaking near the shore from oscillating waves in the bay.
existence of sediments and fill near the shoreline.
rate at which earthquake waves accelerate as they pass through water.
A scientist would use a barometer in order to compare which of the following conditions between two localities?
wind speed.
humidity.
temperature
air pressure.
Summer days in parts of California are occasionally interrupted by afternoon thunderstorms. Which of the following statements best describes the typical conditions that lead to these summer thunderstorms?
High winds lift large quantities of dust into the air, providing particles around which water can condense into thunderheads.
Fast-moving winds in the upper atmosphere mix warm and cold air, creating turbulence and causing powerful updrafts and downdrafts.
A cold front moving through the area forces warm air up, causing condensation of water and the formation of thunderheads.
Humid conditions in a fast-moving warm front increase the electrical conductivity of the air, promoting lightning discharge.
Which point on the map would be likely to experience the greatest daily difference between high and low tides?
Point 1
Point 2
Point 3
Point 4
Certain lakes in arid environments, such as the Great Salt Lake in Utah and the Dead Sea in Israel, are extremely saline. Other lakes in similarly arid environments contain fresh, rather than salt, water. Which of the following is the most accurate explanation for the high salinity of saltwater lakes?
Saltwater lakes are fed by underground hot springs that contain very high levels of dissolved mineral salts.
Rivers that flow into saltwater lakes drain sparsely vegetated and easily eroded rock and soil that contain large quantities of mineral salts.
Water does not drain out of saltwater lakes and is removed primarily by evaporation, which leaves salt behind.
Saltwater lakes are deep and cold, and cold water is able to hold a greater quantity of salt in solution than warm water.
A researcher is preparing to study the effects of logging on the streams and lakes of an area in the Pacific Northwest. Which of the following types of information would be a primary source of data to the researcher in preparing for this investigation?
newspaper articles about logging methods and their potential for environmental damage
reports by an environmental group detailing silting of a stream caused by logging in a forest in Maine
topographic maps of the area showing logging roads and areas of clear-cutting
U.S. Department of Interior's report on recreational use of the land in the area
If the number 360 is written as a product of its prime factors in the form a3b2c, what is the numerical value of a + b + c?
10
16
17
22
9211
14215
116837
1336205
For a bake sale, Marianne has baked p chocolate chip cookies and Jeffrey has baked q peanut butter cookies. They want to package their cookies separately so that each bag has the same number of cookies. How many cookies could they put in each bag?
Which of the following methods could be used to find all the solutions to this problem?
Find the divisors of p + q.
Find the common factors of p and q.
Find the prime factors of p • q.
Find the common multiples of p and q.
What value does the 2 represent in the number 2.1×10−3 ?
100002
10002
1002
102
Which of the following numbers can be represented on the number line between points P and Q? (Hint: It might help to convert fractions to decimals.)
3717
4326
5939
7157
In a town with a population of 4800 people, 8% of the population is evenly distributed in grades 1–6. Approximately how many students are in grade 4?
55
64
77
96
Use these numbers to answer the question that follows.
212
206
246
238
231
216
224
To estimate the sum of the numbers given above, Riley first rounds each number to the nearest ten and then adds the rounded values. By how much will Riley's estimate differ from the actual sum?
3
7
33
73
121÷41
Which of the following illustrates the operation above?
Sean has 121 pounds of popcorn. He wants to divide it equally into 4 bags. How many pounds should he put into each bag?
A trip to the beach is usually a 121 -hour drive. Repairs to the freeway have increased the travel time by 41 . How long will the trip take?
Maria has 121 yards of rope. She wants to divide it into 41 -yard lengths. How many pieces of rope will she have?
The perimeter of a rectangular field is 121 miles. The field is 41 mile wide. How long is the field?
Pat is baking a cake. The recipe calls for 241 cups of flour per 21 pound of butter. If Pat uses 3 cups of flour, how much butter should be used to keep the proportion of ingredients equal?
61
41
83
32
The problem below shows steps in finding the product of two twodigit numbers using this standard multiplication algorithm. The missing digits in the problem are represented by a square.
What is the hundreds digit in the product of the two numbers?
1
4
6
7
The table gives the area of several circles of different radii. Which of the following graphs best represents the data in the table?
Grapefruits in a supermarket display are stacked in the shape of a pyramid. Each layer of the stack is square. The bottom layer is a square with 5 grapefruits on each side. The side of each successive layer is made shorter by one grapefruit. What is the total number of grapefruits that can be stacked? (Hint: think cubic units.)
15
35
54
55
Point E is on a line with a slope of 2 in the x-y plane. Which of the following points is also on the line?
A
B
C
D
A repair person charges a $30 fixed charge plus $45 per hour for time spent working. What is the total bill for a job that requires n hours of work?
($30 + $45)n
$15n + $30
$30n + $45
$45n + $30
3n + 2(n – 4) = n + 15
Which of the following equations could occur as a step in solving the equation above for n?
4n = 19
4n = 7
4n = 23
6n = 7
To find the length of a lake, surveyors measure the distances shown such that angle ABC and ARS are similar. If RS = 3 km, AS = 4 km, and SC = 2 km, what is BC, the length of the lake?
4.5 km
5 km
6 km
8 km
Triangle ABC is isosceles. Angle B has a measure of 120°. What is the measure of angle A?
30°
45°
60°
120°
Main Road and West Road are perpendicular and intersect at point A. Cross Road intersects Main Road 8 km from point A and intersects West Road 6 km from point A. What is CB, the length of Cross Road? (Hint: a2+b2=c2 )
28 km
10 km
14 km
28 km
The figure above is rolled up and folded to make a cylinder of volume 10 cm3 . Which of the following statements about the figure must be true?
The area of the rectangular section, Ar, 10 cm2
The length of the rectangle, Lr is 5 cm2
The area of each circular section, A1 and A2 is 5 cm2
The sum of the areas of the circular sections, A1+A2 equals 5 cm2
Given that figure ABCD is a parallelogram, what are the coordinates of point C?
(4, 8)
(6, 4)
(8, 4)
(12, 4)
A regular hexagon is made from equilateral triangle ABC by cutting along the dotted lines and removing the three smaller triangles. If triangle ABC has a perimeter of 18, what is the perimeter of the hexagon?
63
9
12
15
The scale on a map is 1 inch = 15 miles. On the same map, the distance between Belmont and Smithville is 13 inches. Which of the following is the best estimate of how long it will take to drive from Belmont to Smithville at an average speed of 60 miles per hour?
2 hours 8 minutes
2 hours 14 minutes
3 hours 15 minutes
4 hours 0 minutes
In some countries, area is measured in pings. If the area of a rectangular piece of land that measures 22 feet × 27 feet is 33 pings, how many square feet is equal to one ping?
6
18
26.9
40.5
The table gives the mean temperatures for each month of the year. What is the range in mean temperatures during this year?
50°
52.5°
53.0°
53.5°
The range of hourly wages for 15 employees of a small company starts at $7.50 and ends at $21.40. If only one worker receives the median wage of $8.90, how many workers receive a higher hourly wage?
5
6
7
8
Each of the numbers from 4 to 24 inclusive is written on a separate piece of paper and placed in a bag. If one of these pieces of paper is randomly selected from the bag, what is the probability that the number on it will be a prime number?
72
103
31
207
