Final Test
1 A mixture is
2 In a solution, the substance that does the dissolving is called a/an
3 Water is a compound composed of
4 Which process will not increase the rate of dissolving a solid in a liquid
5 Particles smaller that the atom are called
6 Lithium has an atomic number of 3 and a mass of 7. How many protons and neutrons are present?
7 Radioactive isotopes can be used to
8 Which is a type of energy?
9 Which object has kinetic energy?
10 Machines
11 Gravitational force between two objects depends on the
12 It there is an unbalanced force in a arm wrestling match,
13 An automobile travels 30m from its starting point in 5sec. Its average speed is
14 Reflection of a wave occurs when the wave
15 When a pencil placed in a container of water appears to be split in two pieces, the appearance is due to the concept called
16 Infrared rays
17 The fastest transmission of sound is through
18 What is the buildup of electric charge on an object?
19 What is created when a coil of wire is moved through a magnetic field?
20 Which of the following transfers heat easily from a warmer substance to a cooler one by collisions between their particles?
21 Which of the following could be used as a good insulator?
22 Why do we use fuses and circuit breakers?
23 What is the unit used to measure energy available to move electrons?
24 What is the unit used to measure electric power?
25 What happens if you put two magnetic poles, opposite in nature together?
26 A unit of length in the metric system is the
27 The prefix kilo means
28 Weight is
29 Matter is anything that has
30 One molecule of H2SO4 contains
31 Atoms of the same element that have the same number of protons but different numbers of neutrons are called
32 A substance that changes color in the presence of an acid or base is called a/an
33 The pH of an acid is always
34 A strong base has a pH of
35 The half life of an element is 100 years. If you have 80 grams of the pure element now, how much of the original substance will be left in 300 years?
36 What is the speed of a car that travels 100 meters in 50 seconds?
37 Which of the following is accelerating?
38 Friction is a force that
39 Power equals work
40 The amount of heat needed to change a substance from the liquid phase to the gas
phase is called
41 The electromagnetic spectrum does not include
42 You have been collecting data to determine average monthly rainfall for a particular year. You have 25 random samples recorded in millimeters for each month. You want to show rainfall trends over the year. What would be the best way to represent your data to illustrate each month’s average rainfall?
43 You want to find out which nutrients most frequently limit plant growth. What do you need to ask about each nutrient? I. What is the chemical formula of each nutrient? II. How is the rate of plant growth affected by its absence or low level? III. How is the general function /health of the plant affected by its absence or low level?
44 Analyze the following passage and determine which information is LEAST essential for deciding whether to continue irrigating arid areas.
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Irrigation has made the difference. Wells dug deep into natural underground spring bring water to the surface to be piped through the fields and sprinkled on crops. Over the past sixty years, billions of dollars have been spent to bring water to desert areas. But the largest costs are not measured in money. Other problems include the rapid depletion of general water reserves, reservoirs are now running dry, and erosion of valuable topsoil is taking place. Salts and minerals remain behind reaching levels toxic to plants. Eventually the soil becomes worthless for farming.
45 Predict the outcome of a cross between a heterozygous black guinea pig and a
Recessive homozygous brown guinea pig.
46 A picture of a person’s chromosomes that may help detect a genetic disorder is a
47 Which of the following is not caused by a genetic abnormality?
48 What type of asexual reproduction can hydra undergo?
49 Bacteria reproduce by
50 The phase in mitosis where the cell “pinches off” to form two new cells is
51 A geneticist is studying a human karyotype and discovers that a cell has 47 chromosomes. What genetic condition can be inferred?
52 Once fertilized, the egg and sperm are referred to as the
53 The male reproductive structure in a flower is the
54 What happens when a change in the structure of DNA occurs?
55 A trait that is inherited on sex chromosomes in
56 Body cells in a human female have the following chromosomes
57 The most specific of these is
58 The largest groups into which living things are classified are called
59 The structural feature of euglena that make it plant-like is its
60 Mosses help to rebuild areas destroyed by fire by
61 Seeds increase the chances that a plant will survive by
62 This is the process by which plants convert the sun’s energy to food.
63 All arthropods have appendages that are
64 Which of the following is an adaptation reptiles make in order to live on land?
65 Feathers are modified
66 These animals are distinguished from other vertebrates by possessing hair and producing milk for their young.
67 This is the biological balance within the cell
68 The area in which an organism lives.
69 Algae are eaten by insects, insects are eaten by fish, fish are eaten by an otter: this is called
70 All the population in an area that interact with each other is a
71 The gradual replacement of populations in an area is
72 Acid rain is a result of industrial pollution and automobile exhaust emitted into the
73 Energy sources such as solar energy and hydroelectric energy help reduce the consumption of
74 A hypothesis is a statement that can be tested and
75 The fastest way to locate an example of an oyster fungus would be to look in this section of your textbook.
76 Movement of water from a high concentration to a lower concentration across a membrane is called
77 This type of transport requires the expenditure of energy.
78 Genetic information is stored in this molecule.
79 The southern United States has this type of climate.
80 Which of the following types of succession would most likely occur following a forest fire?
81 When a lake is filling with sediment, this is an example of
82 The primary producer in a grassland ecosystem would most likely be
83 Which of the following would be most important in monitoring a nearly extinct population?
84 Marie wondered if the earth and oceans are heated equally by sunlight. She decided to conduct an investigation. She filled the same size bucket with water and with dirt. She placed them so each would receive the same amount of sunlight. The temperature in each was measured every hour from 8:00 a.m. to 6:00 p.m. Which hypothesis is being tested?
85 In number 84 what was the dependent or responding variable?
86 Which organism in the food web shown below is a producer?
87 Which member of a food web returns nutrients to the environment?
88 Organisms that live in a desert environment have special adaptations to
89 The bar graph shows the result of a two-week experiment on plant growth and watering. In this experiment, one group of plants (group A was watered four times a week, while a second group of plants (group B) was watered two times a week. The graph indicates that, on average, the plants in group A grew about
90 What is the length, in cm, of the flatworm shown in the diagram?
