Unit 1 Review

Quiz by Brooke Hughes

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10 questions
• Q1
Which of the following measurement(s) has three significant figures?
A only
B and C
A, B, and C
A and C
30s
• Q2
Jordan is doing a science fair project on the effects of music on the growth of tomatoes. He has two tomato plants, Plant A and Plant B, that he grows in a window and gives the same amount of water. Plant A is exposed to classical music using headphones attached to the soil. Throughout the growth period, Jordan counts the number of tomatoes produced by each plant. The amount of water given to the plants would be considered the —
control
dependent variable
constant
independent variable
45s
• Q3
These data were gathered by four groups of students. Each group performed four trials to determine the acceleration rate of a toy car. Which group had the most precise data?
Group Q
Group R
Group S
Group T
45s
• Q4
Which piece of lab equipment would be the BEST to use when accurately measuring a liquid volume?
Beaker
30s
• Q5
Measure the length of the line from the ruler illustrated. Be sure to report your measurement with correct significant figures (estimate a digit).
8.0 cm
8.5 cm
8.50 cm
9.00 cm
30s
• Q6
What volume should be reported for the solution in this graduated cylinder?
24 mL
24.0 mL
36 mL
20.4 mL
30s
• Q7
Calculate 4.392 grams + 102 grams + 2.51 grams. (Hint: Notice the units in the problem are NOT the same units given in all the answer choices.)
0.1 kilograms
108902 kilograms
109 kilograms
0.109 kilograms
60s
• Q8
A small fire may be contained by —
smothering it with a beaker.
waiting until it burns out.
place it carefully in water.
covering it with a fire blanket.
20s
• Q9
In 1967, 34 million metric tons of fertilizers were used in the United States. According to the graph, how many more metric tons of fertilizers were used 30 years later?
16 million
25 million
84 million
64 million
30s
• Q10
Which GHS Pictogram represents a hazard that is corrosive?
C
A
D
B
30s

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