ACT Science Normal Community High School. Basic Information about the ACT Test.
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Transcript of ACT Science Normal Community High School. Basic Information about the ACT Test.
![Page 1: ACT Science Normal Community High School. Basic Information about the ACT Test.](https://reader037.fdocuments.in/reader037/viewer/2022103023/56649dba5503460f94aab30f/html5/thumbnails/1.jpg)
ACT Science
Normal Community High School
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Basic Information
about the
ACT Test
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ACT Science Test
The test presents seven sets of scientific information, each followed by a number of multiple-choice test questions. The scientific information is conveyed in one of three different formats: data representation (graphs, tables, and other schematic forms), research summaries (descriptions of several related experiments), or conflicting view-points (expressions of several related hypothesis or views that are inconsistent withone another).
The questions require you to recognize and understand the basic features of, and concepts related to, the provided information; to examine critically the relationship between the information provided and the conclusion drawn or hypotheses developed; and to generalize from given information to gain new information, draw conclusions, or make predictions.
The use of calculators is not permitted on the Science Test.
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Content Covered by the ACT Science Test
The scientific information is conveyed in one of three different formats:
Data Representation (38%)
Research Summaries (45%)
Conflicting Viewpoints (17%)
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Tips for Taking the ACT Test
• Pace yourself• Read the passage carefully• Refer to passage when answering the questions• Note different viewpoints in passaged
• Don't be intimidated by vocabulary - even if you don't know the words. ALL the information you need will be available.
• The test doesn't test your knowledge of the subject...only your ability to interpret data and analyze information
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Warm-up Activity
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This gives you 52.5 seconds / questionor 7 minutes /section.
• Don't spend too long on any question.
• Make a mark on the test to revisit the difficult questions.
• Be sure to answer all questions.
• Their is no penalty for guessing wrong.
• Underline key ideas when you read the passages and look at data tables.
• You may find reading the question and then looking for the answer may work best for you.
Bring an extra #2 pencil and a gooderaser. Scantron tests will mark asincorrect smudged bubbles.
a b c d18.
a b c d18.
WRONG
Correct
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Earth and Space Science
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low grade medium grade high grade
chlorite
muscovite
biotite
garnet
staurolite
kyanite
sillimanite
plagioclase
Figure 2
Figure 2 adapted from Frank Press and Raymond Siever, Earth.Copyright 1986 by W. H. Freeman and Co.
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Biology
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Physical Science
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Physical Science
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Chemistry
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Biochemistry
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Scoring the Test
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Test 4: Science - Scoring Key
Number Correct (Raw Score) for:Total Number Correct for Science Test _____ (40)
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AnswerKey
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ACT Science
Normal Community High School
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Basic Information
about the
ACT Test
![Page 40: ACT Science Normal Community High School. Basic Information about the ACT Test.](https://reader037.fdocuments.in/reader037/viewer/2022103023/56649dba5503460f94aab30f/html5/thumbnails/40.jpg)
Warm-up Activity
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Earth and Space Science
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low grade medium grade high grade
chlorite
muscovite
biotite
garnet
staurolite
kyanite
sillimanite
plagioclase
Figure 2
Figure 2 adapted from Frank Press and Raymond Siever, Earth.Copyright 1986 by W. H. Freeman and Co.
ONLY in medium grade
Question #1 and #4
Question #2 and #3 and #5
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low - medium - high(occurs in ALL types)therefore, not useful in identification
depth = 0 m
heat rocks (must have high temperature)
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low grade medium grade high grade
chlorite
muscovite
biotite
garnet
staurolite
kyanite
sillimanite
plagioclase
Figure 2
Figure 2 adapted from Frank Press and Raymond Siever, Earth.Copyright 1986 by W. H. Freeman and Co.
ONLY in medium grade
low - medium - high(occurs in ALL types)therefore, not useful in identification
#1
#4
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depth = 0 m
heat rocks (must have high temperature)
Draw on the diagram each choice. ONLY choice "J" is a Facies G rock.
Notice the left axis is pressure and the right axis is depth.Both increase as you move downward.
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#8
#6
#6
#7
#9
vapor = gas
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should have accelerated more quicklyif more compact (less air resistance)
was near the Earth's surface8 km
exploded before it hit Earth
#11
#12
#10
#11small pieces are vaporized, if large pieces are found - this theory would be weakened.
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Biology
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#15C
#14
#16
#18"
"
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J ... ants chose seeds to take
Scientists set out 20 seeds in each dish.
statistically the same
Not enough information
A = 6.8B = 14.9
A = 26B = 39
H ... set by nature
F ... not set by scientist
Table 1
#15B
#13
Not known
Some variables are difficult to control.You would need to fence off area and film
scene to see if anything else took the seeds.
When plants are absent; seeds are removed.
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J ... ants chose seeds to take
Scientists set out 20 seeds in each dish.
H ... set by nature
F ... not set by scientist
#14statistically the same
#13
statistically equalincreased plant survivalafter 1 and 2 yeard
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Not enough information
A = 26B = 39
A = 6.8B = 14.9
Table 1
Not known
#15C
#16
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Some variables are difficult to control.You would need to fence off area and film
scene to see if anything else took the seeds.
When plants are absent; seeds are removed.
#18"
"
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Physical Science
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= Paper Wrapping
attractive forceadhesive force
= Plastic Wrapping
In ALL cases, as width of tape increased ... force increased.
#19
= Paper Wrapping
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Graph or ratio
2 cm 4 cm3.2 N x N=
x = 6.4 N or about 7 N
1.0 cm2.0 cm
Z = 1.5 cm is in middle of Table 1
?
Experiment 2, Z was only used at 1 width
If the tape falls off the clamp before the tape fallsoff from the paper or the plastic wrapping you
don't know the force it was holding with.
e.g. I try to bench press 50 lbs and the bar breaks while trying to lift the weight.
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= Paper Wrapping
attractive forceadhesive force
= Plastic Wrapping
In ALL cases, as width of tape increased ... force increased.
#19
Graph or ratio
2 cm 4 cm3.2 N x N=
x = 6.4 N or about 7 N
= Paper Wrapping
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1.0 cm2.0 cm
Z = 1.5 cm is in middle of Table 1
?
Experiment 2, Z was only used at 1 width = Plastic Wrapping
= Paper Wrapping
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If the tape falls off the clamp before the tape fallsoff from the paper or the plastic wrapping you
don't know the force it was holding with.
e.g. I try to bench press 50 lbs and the bar breaks while trying to lift the weight.
= Paper Wrapping
attractive forceadhesive force
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Physical Science
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#27
#26
#25
T2 T1 + heat
10 7 + 3hot cold
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Same: block material, configuration and heat flow
1 50 20 D T = 30oC 2 100 70 D T = 30oC
Change in temperature is same: expect same heat flow (J/sec)
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T2 T1 + heat
10 7 + 3hot cold
#25
#26
Heat Flow: WOOD STEEL 0.072 J/s 31 J/s
In 10 seconds: "lose" 0.72 J vs. 310 J
Joules ~ calories (a measure of heat) 4.184 Joules = 1 calorie
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#27Same: block material, configuration and heat flow
1 50 20 D T = 30oC 2 100 70 D T = 30oC
Change in temperature is same: expect same heat flow (J/sec)
F brick (0.5 J/s) > glass (0.025 J/s)
G brick (0.5 J/s) > glass (0.072 J/s)
H steel (31 J/s) < aluminum (140 J/s)
I steel (31 J/s) > concrete (0.54 J/s)
Increase heat flow ... increase thermal conductivity
Steel 31 J/sAluminum 140 J/s Aluminum has higher heat flow (Table 1)
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Both: glass wool, same temperature
sameboth 1 brick width
Different heat flow ... due to distance between walls
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Chemistry
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Experiment 1 shows that smaller pieces of Mg ribbon give more heat in the quickest time.
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#34
#31
Water boils at 100oC. It won't boil any higher temperature.
Colligative Property: increase solute (salt) ... ... higher boiling point.
Anything over 0.5 mol is the same max temp.Therefore, 0.50 mol is least amount of material.
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0.050 mol 34oC0.060 mol ~ 40oC0.075 mol 50oC
Increased NaCl increased temperature (max)
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#32
Water boils at 100oC. It won't boil any higher temperature.
Colligative Property: increase solute (salt) ... ... higher boiling point.
0.050 mol 34oC0.060 mol ~ 40oC0.075 mol 50oC
Increased NaCl increased temperature (max)
#31
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#34
Anything over 0.5 mol is the same max temp.Therefore, 0.50 mol is least amount of material.
Because the magnesium hydroxide is unreactive and coats the surface of Mg - the salt must be corrosive and "eat away" the Mg(OH)2 coating. Thereby allowing the Mg to react more rapidly.
Metals (such as magnesium) would not melt in boiling water. Choice "A" is not reasonable.
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Biochemistry
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#36
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#39
#38
Dependent on [substrate]
Enzyme concentration dependent ... for 0 - 0.25 mg/L
Higher rate
Lower rate
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#39
Enzyme concentration dependent ... for 0 - 0.25 mg/L
Higher rate
Lower rate
Enzyme B > Enzyme A
(less basic) (more alkaline) or basic
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#36
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#39
#38
Dependent on [substrate]
Enzyme concentration dependent ... for 0 - 0.25 mg/L
Higher rate
Lower rate
Enzyme B > Enzyme A
lock-n-key
enzyme - substrate
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(less basic) (more alkaline) or basic
(acid) (base)
(neutral)
71 14
pH scale
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Scoring the Test
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Test 4: Science - Scoring Key
Number Correct (Raw Score) for:Total Number Correct for Science Test _____ (40)
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