NAME: _______________________________ TODAY’S DATE: _________
MID-TERM DATE: __________
Mid-Term Study Guide
Lab Safety
For each statement below tell whether the statement is true or false
1. It is important to keep all flammable materials away from open flames or dangerous
chemicals. ___________
2. You do not have to tie back long hair when you are working with an open
flame.____________
3. It’s ok to mix chemicals without your teacher's approval. ______________
4. It is ok to smell chemicals in the laboratory as long as you don’t taste or touch them.
______________
5. It is important to always follow written and verbal lab directions. ______________
6. Never point the open end of a test tube or flask towards yourself or others while
heating it. ________________
7. It is important to keep the lab clean and discard materials in containers designated for
this.
______________
8. It’s ok to force glass tubing into a stopper. _______________
9. It’s ok to drink in the lab as long as you don’t eat. ____________
10. Always dispose of materials as per your teacher's instructions. _____________
11. Know where all laboratory safety equipment is located in the lab and how to
use it. ________________
Measurements
Use the ruler below to answer questions 12-15
The diagram above shows you a section of the metric ruler. Determine the
measurement in both cm and mm for each of the letters indictated:
12.
13.
14.
15.
A = ______cm _____mm
C = ______cm _____mm
D= ______cm _____mm
F = ______cm _____mm
16. Look at the graduate below. What does the meniscus read? ________
17. Using the water displacement method determine the volume of the object.
What is the volume of the object? ______________
Initial Volume
Final Volume
____________
____________
18. Look at the triple beam balance. What is the mass of the object?_______
Interpret Data Tables and Graphs
Use the data table below to answer questions 19-23.
Week
Baseball Team Performance
Games Won
Games Lost
1
2
3
4
5
6
7
6
5
5
8
4
3
1
2
3
2
1
2
3
5
Total # of Games
Played
8
16
23
32
38
44
50
19. How many games did the team win during the first 7 weeks?
20. What percent of the games did the team win?
21. According to the table which week was the worst for the team?
22. What week was the best for the team?
23. From the data on the table what can you conclude?
24. What purpose do data tables and graphs serve?
Use the data displayed on the line graph below to answer questions 25-27
25. During what month(s) did the individual weigh the least?________
25b. What was the individuals weight?__________
26. During what month(s) did the individual weigh the most? ________
26b. What was the individuals weight?____________
27. What do you predict the weight of the individual will be in January?
______________
Scientific Method
28. In order, identify the steps in the scientific method.
29. How is the hypothesis proven or disproven?
Identifying Parts of An Experiment
A student wishes to test how caffeine affects the heart rate of mice. The student
feeds 20 mice 6mL of coffee along with their meal. A second group of 20 mice is
fed 6mL of water along with their meal. Each day in the evening (7pm) the
heart rate of each mouse is monitored for one minute and recorded. The average
heart rate is calculated for each group. The experiment is run for a period of 7
days.
30. What problem is the student trying to investigate?
31. Which group in the experiment is the control group?
32. What is the independent variable in the experiment?
33. What is the dependent variable in the experiment?
Life Characteristics
34.What is the basic unit of life?_______________________
35. The scientific term for a living thing is a(n) ______________________
36. What is the difference between unicellular and multicellular organisms? Give
an example of each.
37. Organisms can reproduce (produce offspring) one of two ways. Name and
define the two basic types of reproduction.
38. What is the difference between growth and development?
39. Circle the graphic below that illustrates both growth and development.
40. Organisms respond to environmental factors (stimuli) to help maintain
homeostasis. Define homeostasis and give two examples of how living things
respond to changes in their environment to maintain homeostasis
Interpreting Food Chains, Food Webs and Energy Pyramids
41.What do the arrows on the food web above represent?
42. Where does the initial source of energy come from?
43. From the food chain above, which organism(s) are classified as an
herbivore?
44. From the food chain above, which organism(s) are classified as a carnivore?
45. Which
the food web above is a producer?
organism(s) in
46. Which organism(s) in the food web above are consumers?
47. Which organism(s) in the food web above are omnivores?
48. Which organism(s) in the food web above are carnivores?
49. Which organism(s) in the food web above are herbivores?
50. What happens
move up the energy pyramid?
51. At which level would you find the most organisms?
52. At which level would you find the primary consumers?
53. At which level would you find the producers?
to energy as you
54. At which level would you find the secondary consumers?
Classification
55. Identify the 7 levels of classification from least specific (largest) to most
specific (smallest)
56. Ailuropoda melanoleuca, is the scientific name for the panda bear. What
two levels in the classification system does this name refers to?
57. When are a species considered to be different?
58. How many kingdoms are there in taxonomy? Name them.
59. Define prokaryote. Define eukaryote.
60. Which kingdom(s) contain the prokaryotes? The eukaryotes?
61. What 4 characteristics do scientists look for when placing organisms into a
specific kingdom?
62. Suppose a scientist observes a uni-celled organism under the microscope
and notices that the one celled creature has a nucleus. In what kingdom would
this specimen belong to?
The Microscope
63. What is the difference between a simple microscope and a compound
microscope?
64. If the eyepiece of a microscope is marked at 10X and the objective lens is
marked at 50X, what is the total magnification?
65. While observing a specimen under low power you notice that the specimen
moves down then to the left. In what direction was the specimen really moving?
66. A teacher tells her students to sketch the specimen as it appears under the
high power objective lens only. Why should the specimen be viewed under low
power first?
67. When should the course adjustment knob be used?
68. When should the fine adjustment knob be used?
69. Give the steps for preparing a wet mount slide.
70. Label all of the microscope parts numbered below:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
_______________________________
71. Which part of the microscope provides light?_________
72. Which part of the microscope allows you to select how much light you want
shining through the opening of the stage? ______
73. Which part of the microscope brings a specimen in to a clear, crisp view
under high power? _______
74. Which parts of the microscope magnifies the specimen being viewed?
__________
Cells (Animal & Plant) Parts and Function
75. Identify the 3 statements in the cell theory.
A) _____________________________________________________________________________________________
B) _____________________________________________________________________________________________
C) _____________________________________________________________________________________________
76. Label the parts of the animal cell below:
77. Label the parts of the plant cell below:
Read each statement below. Tell whether the statement is true or false.
78. The vacuole produces enzymes. _________
79. The Golgi body stores excess water, food and waste. _________
80. Vacuoles are larger in plant cells than in animal cells. ________
81. Two organelles found in plant cells that are not found in animal cells are the cell
wall and the chloroplasts.______
82. The nucleus is the organelle commonly called the control center of the cell. ______
83. The cell wall is flexible and thin __________
84. In plant and animal cells the DNA floats freely in the cytoplasm. _______
85. Ribosomes produce proteins. _______
86. The cell membrane is a thin structure that controls the movement of materials in
and out of the cell. _______
87. The mitochondria is often referred to as the “power house” of the cell. _______
88. In plant cells, photosynthesis takes place in the cell wall. ________
89. Lysosome are the “clean up” crew of the animal cell. __________
90. Lysosome are found in both plant and animal cells. ___________