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Name
Date
Period
1st Semester Study Guide
Science 8
When a student is finished working with chemicals what should the student do
before leaving the laboralory?
Eating in the laboratory
Why should all classroom aisles and walkways be kept clear?
It is important to follow safety procedures in the laboratory in order to
What are you doing when you use your five senses to gather information?
What should students do before inserting the plug of an electrical device into a
socket?
When should students enter the science storage room?
What is the boiling point of water on the Celsius scale?
Which part of your ear do sound waves enter through?
Where should a student discard chemicals after an investigation?
Which tool would be used to measure the mass of a rock?
Which tool would be used to measure the length of a science book?
Which tool would be used to measure the volume of water?
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14.
Which statement correctly reflects the information in the diagram?
A. 60oF is warmer than 20oC
B. The weather is warmer in the United States than other countries.
C. The Celsius scale is hard to understand.
D. Water freezes at a lower temperature on the Celsius scale.
15.
Which one of the statements about a hypothesis is true?
A. lf a hypothesis proves to be wrong, then nothing in the experiment is valid or
valuable.
B. lf a hypothesis proves to be wrong, the experiment can still be valid because
you can learn from the data.
C. A hypothesis should not be made if the investigation is of a serious nature.
D. A hypothesis is useful when you are positive of what the results of an
experiment wilt be.
16.
What color of light will pass
17.
ln this diagram, what happens to the wavelength of a wave when the frequency
increases?
18.
ln this diagram, the wavelength is shown with
19.
ln this diagram, the amplitude is shown with
20.
This diagram represents
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21.
This diagram represents
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22.
When is off task behavior appropriate during an investigation?
23.
Which part of your ear sends the message to your brain that you've heard a
sound?
24.
What can cause hearing loss?
25.
The most common type of hearing loss is due to
26.
Before beginning an investigation, students with long hair should
27.
A disturbance that transfers energy from place to place is called a
28.
What is the best method of eye protection when using heat, chemicals and
glassware in an investigation?
29.
The material through which a wave travels is called a
30.
Waves are created when a source of energy causes a medium to
31.
What is the highest part of a transverse wave called?
32.
What type of wave moves particles in the medium parallel to the wave motion?
33.
Taking materials from the science laboratory is
34. The distance between two corresponding parts of a wave is called
35. What is the interaction between two waves that meet called?
36. Visible light has a higher frequency than
97. What should a student do first if a chemical spills in the laboratory?
38. Clear glass, water, and air are examples of what kind of material?
39. Frosted glass and wax paper are
40. When the surface of a mirror curves inward, like the inside of a bowl, it is
called a
41.
42.
What happens when light passes from air into water?
43.
44.
45.
What happens when white light strikes a black object?
4O.
The range of electromagnetic waves placed in a certain order is call the
47.
48.
49.
The electromagnetic waves with the highest frequencies are called
50.
A train that travels 100 kilometers in 4 hours is traveling at what average
speed?
51.
When solving the problem of a flat tire on a bicycle, which of the following would
be an example of a hYPothesis?
A. Inflate the tire to pressure of 16 kg/cm2
B. The air leak is due to a faulty valve stem on the tube
C. There was no hole found in the tire
D. I think the tire went flat because of a nail puncture
52.
53.
What is the speed of an object traveling 200 kilometers in 2 hours?
54.
What should a student do if equipment is not working properly during an
investigation?
A curved piece of glass or other transparent material that is used to refract
light is called a(n)
You can hear sounds from around corners because of
lf a student is allergic to a substance used in an activity what should the
student do?
The primary colors of light are
Visible light can be separated into the various colors of the visible spectrum to
form a(n)
How far away from its starting point would a truck be in 3 hours if its average
speed was 100 kmnrr?
55.
ln an acceleration graph showing speed versus time, a straight line shows the
acceleration is
56.
When visible light is separated into the various colors of the visible spectrum
what is formed?
57.
ln which of the following areas is a speed limit least important?
C. A race track
D. An interstate highway
A. A school zone
B. A neighborhood street
58.
Researchers often repeat their experiments five, ten, or more times. Why do
they do this?
59.
60.
61.
62.
63.
64.
65.
What would decrease the stopping distance of a car?
66.
67.
68.
69.
70.
71.
ln physical science, what is a push or a pull called?
Think about an object in motion. What determines how far it will travel?
The pitch of a sound that you hear depends on the sound wave's
What are some examples of kinetic energy?
What are some examples of potential energy?
Visible light is an example of which form of energy?
lf a student's hand is cut during an investigation what should the student do
immediately?
What happens when two forces act in the same direction?
The tendency of an object to resist any change in its motion is known as
The greater the mass of an object,
Force equals mass times
What is the force that one surface exerts on another when the two rub against
each other?
72.
7g.
74.
What is the force that pulls falling objects toward Earth?
75.
76.
Any force that causes an object to move in a circle is called a(n)
The force of gravity on a person or object at the surface of a planet is known as
Which law can explain how gases released from burning fuel in a rocket
produce thrust?
when an object's distance from another object is changing
77.
A p]ace or object used for comparison to determine if something is in motion is
called
78.
lf you know the distance an object has traveled in a certain amount of time, you
can determine
79.
Speed equals distance divided by
80.
lf an object mgves in the same direction and at a constant speed for 4 hours,
which of the following is true?
A. The object's speed changed during the 4 hours
E. fhe object's vblocity did iot change
C. The object accelerated during the 4 hours
D. The object decelerated durin! the 4 hours
81.
When you know both the speed and the direction of an object's motion, you
know the
82.
You can show the motion of an object on a line graph in which you plot distance
against
83.
The rate at which velocity changes is called
84.
Changing direction is an example of
85.
What happens when parallel rays of light hit a smooth surface?
86.
The bending of light rays as they enter a new medium is called
87.
The bending of waves due to a change in speed is called
88.
A curved piece of glass or other transparent material that is used to refract light
is called
89.
What happens when light passes from air into water
90.
What happens to the wavelength of a wave when the frequency increases?
91.
True or false: All of the electromagnetic radiation spectrum is visible to
humans.
92.
The maximum distance that the particles of a medium move from the rest
position is the
93.
A. Blue light
B. lnfrared radiation
94.
Which of these has the longest wavelength?
C. Radio wave
D. X-ray
Which of these has the highest frequency?
C. Radio wave
D. X-ray
A. Blue light
B. lnfrared radiation
95.
Which of these has the lowest frequency?
C. Radio wave
A. Blue
D' X-raY
B. lnfrareb
96.
97.
98.
All sounds are created bY
99.
What type of mirror is showni
100.
ldentify the focal point where reflected light rays meet and focus.
light
radiation
ls it important that scientific investigations be open to evaluation and criticism?
A material that reflects or absorbs any light that strikes it is