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Science ACT Practice

Total questions: 37

Worksheet time: 58mins

Name
Class
Date
1.

Which liquid had the highest molecular mass?

a)

Hexane

b)

Petroleum Ether

c)

Ethanol

d)

H20

2.

A scientist has that the larger the molecular mass, the larger the viscosity. Is he correct?

a)

Yes, it is supported by Table 1.

b)

Yes, it is supported by Figure 1.

c)

No, because different molecular masses have differing viscosity levels.

d)

No, because viscosity is the same for all molecular masses.

3.

Which position produced the highest PE (potential energy)?

a)

A

b)

B

c)

C

d)

Both D and E

4.

Which pigment had the highest absorption rate at 500 nm wavelength?

a)

Chlorophyll A

b)

Chlorophyll B

c)

Carotenoids

d)

All the same

5.

Which pigment had the lowest absorption rate at 500 nm wavelength?

a)

Chlorophyll A

b)

Chlorophyll B

c)

Carotenoids

d)

All the same

6.

Which position produced the highest KE (kinetic energy)?

a)

A

b)

B

c)

C

d)

Both D and E

7.

Does the liquid with the highest density also have highest viscosity?

a)

Yes, and it is Ethanol

b)

Yes and it is H20.

c)

No, because H20 has second highest viscosity while it has the highest density.

d)

No, because all liquids have the same density.

8.

Which pigment had the highest absorption rate at 660 nm wavelength?

a)

Chlorophyll A

b)

Chlorophyll B

c)

Carotenoids

d)

All the same

9.

Which pigment had the lowest absorption rate at 550 nm wavelength?

a)

Chlorophyll A

b)

Chlorophyll B

c)

Carotenoids

d)

All the same

10.
Which of the following graphs best illustrates the relationship between the heat released by the foods listed in Table 1 and the change in water temperature?
a)
A
b)
B
c)
C
d)
D
11.
Qualitative or Quantitative:
The cat has orange fur on his ears. 
a)
Qualitative
b)
Quantitative
12.
What is a line graph used for?
a)
Recording something over time
b)
Percentages
13.
On which axis would you place the dependent variable?
a)
X
b)
Y
c)
Z
14.
On which axis would you place the independent variable?
a)
X
b)
Y
c)
Z
15.
Based on Figure 1, to measure the voltage across the resistor only, which of the following circuits should one use?
a)
A
b)
B
c)
C
d)
D
16.

What is on the x axis?

a)

intensity (Hz)

b)

intensity (db)

c)

frequency (Hz)

d)

frequency (db)

17.

What is on the yaxis?

a)

intensity (Hz)

b)

intensity (db)

c)

frequency (Hz)

d)

frequency (db)

18.

What does the dashed line represent?

a)

sound in air

b)

sound in water

c)

threshold of hearing

d)

threshold of pain

19.

What does the dotted line represent?

a)

sound in air

b)

sound in water

c)

threshold of hearing

d)

threshold of pain

20.

Which of these would cause pain in human ears?

a)

anything over 0 db

b)

160 db

c)

40 db

d)

118 db

21.

What is the lowest frequency humans can hear?

a)

2 Hz

b)

20 Hz

c)

3 x 104 Hz

d)

2 x 105 Hz

22.

According to fig 2 which mineral would be found in rocks of medium grade

a)

Muscovite

b)

Biotite

c)

Kyanite

d)

Plagioclase

23.

According to Fig 1, Fascies G rock will most likely form under which of the following pressure and temperature conditions?

a)

Pressure 3kb Temperature 800C

b)

Pressure 5kb Temperature 400C

c)

Pressure 8kb Temperature 1000C

d)

Pressure 11kb Temperature 600C

24.

Fig 1 indicates that as depth increases, pressure...

a)

decreases only

b)

remains the same

c)

increases only

d)

increases, then decreases

25.

According to Fig 2, the presence of which of the following minerals in a metamorphic rock would be least helpful in determining that rock's grade

a)

Chlorite

b)

Muscovite

c)

Staurolite

d)

Plagioclase

26.

Hornfels, is a metamorphic rock formed when magma (molten rock)heats sedimentary rocks on Earth's surface. According to Fig 1 hornfels is most likely a member of which of the following fascies

a)

Facies A

b)

Facies C

c)

Facies E

d)

Facies G

27.

According to Fig 2, Enzyme A has the fastest rate of reaction at a pH closest to:

a)

5

b)

6

c)

8

d)

9

28.

Based on the data in Fig 2, at which of the following pHs, if any, do Enzymes A and B have the same acceleration factor?

a)

at pH of 5 only

b)

at pH of 6.7 only

c)

at all pHs between 2 and 11

d)

at none of the pHs shown in the figure

29.

According to the information provided, heat flowed from the wall at temperature T2 to the wall at temperature T1 at which trial?

a)

Trial 4

b)

Trial 6

c)

Trial 10

d)

Trial 12

30.

Existing independent of any other cause; free from imperfection

a)

alloy

b)

absolute

c)

assume

d)

angst

31.

To understand fully

a)

Complete

b)

Comprehend

c)

Conjugate

d)

Correct

32.

A factor in an experiment that remains constant

a)

Controlled variable

b)

Experimental variable

c)

Independent variable

d)

Outlier

33.

A state controlled by something else

a)

Delayed

b)

Decadent

c)

Dependence

d)

Declaration

34.

Forming a calculation based on incomplete data

a)

Exoplanet

b)

Extraneous

c)

Estimation

d)

Exempt

35.

To figure out and tell beforehand

a)

Pretend

b)

Predict

c)

Precursor

d)

Propose

36.

The connection between two variables that shows the opposite effect (when the value of one increases, the value of the other decreases).

a)

Direct relationship

b)

Inverse relationship (Indirect)

c)

Exponential relationship

d)

Irregular relationship

37.

Estimating a value of another characteristic beyond the range of a given value of another characteristic

a)

Extrapolation

b)

Interpolation

c)

Propagation

d)

Interrogation

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