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WorksheetsScientists' Tools Review
Total questions: 50
Worksheet time: 30mins
Name
Class
Date
1.
The boy is in the water.
a)
inference
b)
observation
2.
The weather is cold.
a)
inference
b)
observation
3.
The tree branch is broken.
a)
inference
b)
observation
4.
If the boy crawled out of the water, the goat would push him in.
a)
inference
b)
observation
5.
The sailboat belongs to the boy.
a)
inference
b)
observation
6.
The tree by the pond has no leaves.
a)
inference
b)
observation
7.
The boy fell off the branch.
a)
inference
b)
observation
8.
The teachers are wearing red and black.
a)
Qualitative
b)
Quantitative
9.
There are ten buttons on the table.
a)
Qualitative
b)
Quantitative
10.
The clouds are grey and ground is wet.
a)
Qualitative
b)
Quantitative
11.
There are 75 trees in the forest.
a)
Qualitative
b)
Quantitative
12.
There are 25 Liters of water in the buckets.
a)
quantitative
b)
qualitative
13.
There are 20 students in our classroom.
a)
quantitative
b)
qualitative
14.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
15.
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.
a)
Diameter of the ball
b)
Force acting on the ball
c)
Height that the ball bounces
d)
Height from which the ball is dropped
16.
Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings in is based on the number of students in her class.
t = the number of treats
s = the number of students
Which of the variables is independent?
t = the number of treats
s = the number of students
Which of the variables is independent?
a)
s
b)
t
17.
What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes furthest?
a)
the paper used
b)
the type of paper airplane
c)
the distance of each plane's flight
d)
how hard the plane is thrown
18.
How many variables do we want to be testing at one time?
a)
1
b)
2
c)
3
d)
4
19.
Convert 1.7 g to kg
a)
0.0017g
b)
17g
c)
170g
d)
0.17g
20.
Convert 0.25 m to mm
a)
25mm
b)
2.5mm
c)
250mm
d)
0.025mm
21.
convert 9 km to mm
a)
900,000mm
b)
9,000,000mm
c)
9,000mm
d)
90,000mm
22.
convert 650 m to km
a)
6.5km
b)
0.65km
c)
65km
d)
0.065km
23.
convert 12 mL to L
a)
0.12L
b)
0.012L
c)
1.2L
d)
0.0012L
24.
convert 0.08 km to m
a)
80m
b)
8m
c)
0.8m
d)
800m
25.
convert 0.7 cm to hm
a)
70hm
b)
0.07hm
c)
0.0007hm
d)
0.00007hm
26.
convert 93.2 dg to dag
a)
0.00932 dag
b)
0.0932dag
c)
0.932 dag
d)
0.000 932dag
27.
What is measured with a graduated cylinder?
a)
Passage of time
b)
Distance from one thing to another
c)
Weight of an object
d)
Volume of liquid
28.
Name the tool
a)
crucible tongs
b)
beaker tongs
c)
forceps
d)
tweezers
29.
Which item measures more precisely?
a)
test tube
b)
beaker
c)
graduated cylinder
d)
measuring cup
30.
a)
hot plate
b)
electronic balance
c)
bunsen burner
d)
scales
31.
a)
glass triangle
b)
funnel
c)
stirring rod
d)
buret
32.
a)
Erlenmeyer flask
b)
Volumetric flask
c)
beaker
d)
graduated flask
33.
a)
test tube rack
b)
test tube holder
c)
wire holder
d)
utility clamp
34.
a)
hot plate
b)
flame thrower
c)
heater
d)
bunsen burner
35.
How many sig figs are there?
100.00
100.00
a)
1
b)
3
c)
4
d)
5
36.
How many sig figs are there?
100000000
100000000
a)
1
b)
9
c)
10
37.
How many sig figs are there?
4004
4004
a)
1
b)
2
c)
3
d)
4
38.
How many sig figs are there?
0.000008
0.000008
a)
1
b)
2
c)
6
d)
7
39.
How many sig figs are there?
0.00400
0.00400
a)
1
b)
3
c)
5
d)
6
40.
How many sig figs are there?
9009.00
9009.00
a)
2
b)
4
c)
5
d)
6
41.
Calculate 12.34 × 1.234 × 0.1234
a)
1.87908
b)
1.879
c)
1.9
d)
1.8790809
42.
Calculate 5.50 cm + 5.50 cm
a)
11 cm
b)
11.0 cm
c)
11.00 cm
d)
11.000 cm
43.
Convert the following to scientific notation.
0.000480
(preserve sig figs)
0.000480
(preserve sig figs)
a)
4.8 x 10-4
b)
4.80 x 10-4
c)
4.8 x 10-3
d)
4.80 x 10-3
44.
How many significant figures are in the measurement: 2.70 x102g?
a)
2
b)
3
c)
4
d)
5
45.
How many significant figures does 2,100,080 mm have?
a)
3
b)
4
c)
5
d)
6
46.
Solve & Round to Correct Sig Figs.
4.5 x 4.32 =
4.5 x 4.32 =
a)
19.4
b)
20
c)
19.44
d)
19
47.
Solve & Round to Correct Sig Figs.
4.5 x 2.34 =
4.5 x 2.34 =
a)
11
b)
10.53
c)
10.5
d)
10.530
48.
Solve & Round to Correct Sig Figs.
100 / 2 =
100 / 2 =
a)
50
b)
50.
c)
50.0
d)
50.00
49.
Measure this with proper number of estimated digits.
a)
3.8 mm
b)
3.81 mm
c)
3.72 mm
d)
3.91 mm
50.
How much liquid in in the graduated cylinder?
a)
31.5 mL
b)
36.6 mL
c)
36 mL
d)
35.1 mL
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