SQUADS #5
CPW
“10th Grade Science”
Learning Intentions - Today, I am going to address these College Readiness
Standards in Reading:
1. Interpretation of Data 16-19
2. Evaluation of Models, Inferences, and Experimental Results 24-27
3. Evaluation of Models, Inferences, and Experimental Results 20-23
4. Scientific Investigation 20-23
5. Interpretation of Data 24-27
Success Criteria - I will know I am successful when I can determine how the
value of one variable changes as the value of another variable changes; determine
whether given information supports or contradicts a simple hypothesis or
conclusion, and why; understand a simple experimental design; and analyze given
information when presented with new, simple information.
Quick Note!
• Today’s question are based on the printed
passage you will receive shortly. After reading
your passage individually or as a group, choose
the best answer to each question. You may refer
to the passages as often as necessary.
• You have 4 Minutes to read your passage!
ACT Tip - The ACT Science Test contains 40 questions to be completed in
35 minutes. If you spend about 2 minutes reading each passage, then
you will have about 30 seconds to answer each question.
10th Grade Science
#1. According to Figure 1, as the temperature of
liquid water decreases from 10 ̊C to 0 ̊C, the
density:
A. increases only.
B. decreases only.
C. decreases, then increases.
D. increases, then decreases.
Correct Answer: D – increases, then decreases.
Rationale: In Figure 1, at a temperature of
C, the
density is approximately 0.9997 g/cm3. At a temperature
of 4 C, the density has increased to 1.0000 g/cm3. At a
temperature of C, the density has decreased to
0.99985 g/cm3.
10th Grade Science
#2. A student claimed that “If the masses of 1 cm3 of any
solid and 1 cm3 of any liquid are compared, the mass of
the solid will be greater.” Do the data in Table 1 support
his claim?
F. No; lead has a higher density than any of the liquids
listed.
G. No; mercury has a higher density than any of the solids
listed.
H. Yes; lead has a higher density than any of the liquids
listed.
J. Yes; mercury has a higher density than any of the solids
listed.
Correct Answer: G – No; mercury has a higher density than
any of the solids listed.
Rationale: If a liquid and a solid are compared with the
same volumes (cm3), one can easily compare the
densities of solids and liquids. The solid with the highest
density is Lead with a density of 11.34 g/cm3. The liquid
with the highest density is Mercury with a density of
13.59 g/cm3. 11.34 (the solid) is less than 13.59 (the
liquid); thus, the mass of the solid will NOT be greater.
10th Grade Science
#3. Which of the following hypotheses about the
relationship between the temperature and the
density of a solid is best supported by the data in
Figure 2? As the temperature of a solid increases,
the density of the solid:
A. increases only.
B. decreases only.
C. increases, then decreases.
D. decreases, then increases.
Correct Answer: B – decreases only.
Rationale: In examining Figure 2, at a temperature of
7 C, the solid water has a density of approximately
0.9180 g/cm3. At a temperature of -4 C, the solid water
has a density of 0.9174 g/cm3. At 0 C, the solid water
has a density of 0.9170 g/cm3. The graph represents an
indirect relationship – as the temperature increases, the
density decreases.
10th Grade Science
#4. Equal amounts of ethyl ether, mercury, and water
(density=0.9971 g/cm3) at 25 ̊C are poured into a single
beaker. Three distinct layers of liquid form in the beaker.
Based on the data in Table 1, which of the following
diagrams represents the order, from top to bottom, of
the liquids in the beaker?
F.
G.
Ethyl ether
H. Mercury
Water
Water
Mercury
Ethyl ether
Ethyl ether
J.
Water
Mercury
Ethyl ether
Water
Mercury
Correct Answer: F Ethyl ether
Water
Mercury
Rationale: Table 1 indicates that ethyl ether has a
density of 0.71 g/cm3 and mercury has a density of 13.59
g/cm3. The question indicates that water has a density of
0.9971 g/cm3. The liquid with the lowest density will be
on top and the liquid with the highest density will be on
the bottom. A lower density indicates the substance has
a lower mass-to-volume ratio, whereas a higher density
indicates the substance has a higher mass-to-volume
ratio.
10th Grade Science
#5. According to Figure 1, 100 g of water at 4 ̊C
would exactly fill a container having which of
the following volumes?
A. 1 cm3
B. 10 cm3
C. 100 cm3
D. 1,000 cm3
Correct Answer: C – 100 cm3
Rationale: According to Figure 1, at a temperature of
4 C, liquid water has a density of 1.0000 g/cm3. To solve
this problem, you will need the formula for density which
is indicated in the passage as density = mass/volume.
The mass of water in this question is 100 g and the
density is 1.0000 g/cm3. If this information is plugged
into the equation and you solve for volume, the answer
is 100 cm3.