CSET SUBTEST II – CERTIFICATION EXAM
COMPLETE 169 QUESTIONS AND CORRECT ANSWERS | LATEST 2025/2026 EDITION
PREVIEW NOTE: Correct answers and rationales are highlighted - download for full document
TABLE OF CONTENTS
1. EXAM INFORMATION...................................... PAGE 1
2. SECTION 1: EARTH AND SPACE SCIENCE.................... PAGE 2
3. SECTION 2: LIFE SCIENCES (BIOLOGY).................... PAGE 8
4. SECTION 3: PHYSICAL SCIENCES (CHEMISTRY).............. PAGE 14
5. SECTION 4: PHYSICAL SCIENCES (PHYSICS)................ PAGE 20
6. COMPLETE ANSWER KEY QUICK REFERENCE................... PAGE 26
EXAM INFORMATION
Exam: CSET Multiple Subjects Subtest II – Science
Edition: 2025/2026 Latest Update
Total Questions: 169
Document Type: Complete Practice and Prep Guide with Verified Answers
SECTION 1: EARTH AND SPACE SCIENCE
Question 1
Which sequence correctly describes the water cycle?
A) Evaporation → Condensation → Precipitation → Collection
B) Condensation → Evaporation → Precipitation → Collection
C) Precipitation → Evaporation → Condensation → Collection
D) Collection → Precipitation → Evaporation → Condensation
Answer: A) Evaporation → Condensation → Precipitation → Collection
Rationale: The water cycle begins with evaporation (liquid to gas), followed by condensation
(gas to liquid forming clouds), then precipitation (water falling as rain/snow), and finally
collection (water gathering in oceans, lakes, etc.) [citation:2].
Question 2
In the water cycle, what is the process called when water vapor turns into liquid water droplets?
A) Evaporation
,B) Condensation
C) Precipitation
D) Transpiration
Answer: B) Condensation
Rationale: Condensation is the process where water vapor (gas) changes into liquid water,
forming clouds. This occurs when air cools and cannot hold as much water vapor [citation:2].
Question 3
A raindrop falling through the atmosphere in the Northern Hemisphere is affected by gravity and
Earth's rotation. Which direction will it appear to fall?
A) Straight down
B) Slight left direction
C) Slight right direction
D) Upward direction
Answer: C) Slight right direction
Rationale: Due to the Coriolis effect, moving objects in the Northern Hemisphere are deflected
to the right. This includes falling raindrops, though the effect is minimal over short distances
[citation:2].
Question 4
Why is it colder in California's Central Valley during winter compared to the coast?
A) The valley is at a higher elevation than the coast
B) The ocean moderates temperatures, keeping the coast warmer
C) The valley receives less direct sunlight than the coast
D) Cold air sinks and settles in the valley
Answer: B) The ocean moderates temperatures, keeping the coast warmer
Rationale: Water has a high specific heat capacity, meaning it heats and cools slowly. The
ocean releases stored heat during winter, keeping coastal areas milder, while inland areas like
the Central Valley experience greater temperature extremes [citation:2].
Question 5
Why doesn't ocean water freeze as easily as freshwater in a lake?
A) Ocean water is shallower than lakes
B) Salt lowers the freezing point of water
C) Ocean currents constantly move the water
,D) Oceans receive more sunlight than lakes
Answer: B) Salt lowers the freezing point of water
Rationale: The dissolved salts in ocean water lower its freezing point below 0°C (32°F).
Freshwater freezes at 0°C, while seawater must reach approximately -2°C (28°F) before ice
forms [citation:2].
Question 6
What instrument is used to measure atmospheric pressure?
A) Thermometer
B) Hygrometer
C) Barometer
D) Anemometer
Answer: C) Barometer
Rationale: A barometer measures atmospheric pressure, which is important for weather
forecasting. Thermometers measure temperature, hygrometers measure humidity, and
anemometers measure wind speed [citation:2].
Question 7
What is true about Polaris (the North Star)?
A) It is the brightest star in the night sky
B) It moves across the sky throughout the night
C) It remains nearly stationary while other stars appear to circle around it
D) It is visible only from the Southern Hemisphere
Answer: C) It remains nearly stationary while other stars appear to circle around it
Rationale: Polaris is located almost directly above Earth's North Pole. As Earth rotates on its
axis, Polaris appears fixed in the northern sky while other stars appear to rotate around it. It is
not the brightest star (Sirius is brighter) [citation:2].
Question 8
From the Northern Hemisphere on the June solstice, which location would experience the
longest amount of daylight?
A) Miami, Florida
B) Los Angeles, California
C) Anchorage, Alaska
D) Houston, Texas
, Answer: C) Anchorage, Alaska
Rationale: During the June solstice, the Northern Hemisphere is tilted toward the sun. Locations
closer to the Arctic Circle experience longer daylight hours, with Anchorage, Alaska receiving
nearly 19 hours of daylight [citation:1][citation:2].
Question 9
In the Northern Hemisphere on the winter solstice, which location experiences the longest
amount of sunlight?
A) Fairbanks, Alaska
B) Ross Ice Shelf, Antarctica
C) Mexico City, Mexico
D) Seattle, Washington
Answer: B) Ross Ice Shelf, Antarctica
Rationale: During the Northern Hemisphere winter solstice, the Southern Hemisphere is tilted
toward the sun. Locations near the Antarctic Circle experience 24 hours of daylight, while the
Arctic Circle experiences 24 hours of darkness [citation:1][citation:2].
Question 10
-
During the Northern Hemisphere winter, the sun's path across the sky is shorter and closer to
the horizon than in summer. This seasonal change is caused by:
A) Earth's distance from the sun
B) The tilt of Earth's rotational axis compared to its orbital plane
C) Changes in the sun's energy output
D) The rotation of Earth on its axis
Answer: B) The tilt of Earth's rotational axis compared to its orbital plane
Rationale: Earth's axis is tilted at approximately 23.5 degrees relative to its orbital plane. This tilt
causes different hemispheres to receive more direct sunlight at different times of the year,
creating seasons and changing the sun's apparent path across the sky [citation:1][citation:5].
Question 11
-
Compared to the waters of the continental shelf, the surface waters of the open ocean are
generally much less productive because they:
A) Receive less sunlight
B) Are too cold for most organisms
C) Lack nutrients derived from land and ocean sediment
COMPLETE 169 QUESTIONS AND CORRECT ANSWERS | LATEST 2025/2026 EDITION
PREVIEW NOTE: Correct answers and rationales are highlighted - download for full document
TABLE OF CONTENTS
1. EXAM INFORMATION...................................... PAGE 1
2. SECTION 1: EARTH AND SPACE SCIENCE.................... PAGE 2
3. SECTION 2: LIFE SCIENCES (BIOLOGY).................... PAGE 8
4. SECTION 3: PHYSICAL SCIENCES (CHEMISTRY).............. PAGE 14
5. SECTION 4: PHYSICAL SCIENCES (PHYSICS)................ PAGE 20
6. COMPLETE ANSWER KEY QUICK REFERENCE................... PAGE 26
EXAM INFORMATION
Exam: CSET Multiple Subjects Subtest II – Science
Edition: 2025/2026 Latest Update
Total Questions: 169
Document Type: Complete Practice and Prep Guide with Verified Answers
SECTION 1: EARTH AND SPACE SCIENCE
Question 1
Which sequence correctly describes the water cycle?
A) Evaporation → Condensation → Precipitation → Collection
B) Condensation → Evaporation → Precipitation → Collection
C) Precipitation → Evaporation → Condensation → Collection
D) Collection → Precipitation → Evaporation → Condensation
Answer: A) Evaporation → Condensation → Precipitation → Collection
Rationale: The water cycle begins with evaporation (liquid to gas), followed by condensation
(gas to liquid forming clouds), then precipitation (water falling as rain/snow), and finally
collection (water gathering in oceans, lakes, etc.) [citation:2].
Question 2
In the water cycle, what is the process called when water vapor turns into liquid water droplets?
A) Evaporation
,B) Condensation
C) Precipitation
D) Transpiration
Answer: B) Condensation
Rationale: Condensation is the process where water vapor (gas) changes into liquid water,
forming clouds. This occurs when air cools and cannot hold as much water vapor [citation:2].
Question 3
A raindrop falling through the atmosphere in the Northern Hemisphere is affected by gravity and
Earth's rotation. Which direction will it appear to fall?
A) Straight down
B) Slight left direction
C) Slight right direction
D) Upward direction
Answer: C) Slight right direction
Rationale: Due to the Coriolis effect, moving objects in the Northern Hemisphere are deflected
to the right. This includes falling raindrops, though the effect is minimal over short distances
[citation:2].
Question 4
Why is it colder in California's Central Valley during winter compared to the coast?
A) The valley is at a higher elevation than the coast
B) The ocean moderates temperatures, keeping the coast warmer
C) The valley receives less direct sunlight than the coast
D) Cold air sinks and settles in the valley
Answer: B) The ocean moderates temperatures, keeping the coast warmer
Rationale: Water has a high specific heat capacity, meaning it heats and cools slowly. The
ocean releases stored heat during winter, keeping coastal areas milder, while inland areas like
the Central Valley experience greater temperature extremes [citation:2].
Question 5
Why doesn't ocean water freeze as easily as freshwater in a lake?
A) Ocean water is shallower than lakes
B) Salt lowers the freezing point of water
C) Ocean currents constantly move the water
,D) Oceans receive more sunlight than lakes
Answer: B) Salt lowers the freezing point of water
Rationale: The dissolved salts in ocean water lower its freezing point below 0°C (32°F).
Freshwater freezes at 0°C, while seawater must reach approximately -2°C (28°F) before ice
forms [citation:2].
Question 6
What instrument is used to measure atmospheric pressure?
A) Thermometer
B) Hygrometer
C) Barometer
D) Anemometer
Answer: C) Barometer
Rationale: A barometer measures atmospheric pressure, which is important for weather
forecasting. Thermometers measure temperature, hygrometers measure humidity, and
anemometers measure wind speed [citation:2].
Question 7
What is true about Polaris (the North Star)?
A) It is the brightest star in the night sky
B) It moves across the sky throughout the night
C) It remains nearly stationary while other stars appear to circle around it
D) It is visible only from the Southern Hemisphere
Answer: C) It remains nearly stationary while other stars appear to circle around it
Rationale: Polaris is located almost directly above Earth's North Pole. As Earth rotates on its
axis, Polaris appears fixed in the northern sky while other stars appear to rotate around it. It is
not the brightest star (Sirius is brighter) [citation:2].
Question 8
From the Northern Hemisphere on the June solstice, which location would experience the
longest amount of daylight?
A) Miami, Florida
B) Los Angeles, California
C) Anchorage, Alaska
D) Houston, Texas
, Answer: C) Anchorage, Alaska
Rationale: During the June solstice, the Northern Hemisphere is tilted toward the sun. Locations
closer to the Arctic Circle experience longer daylight hours, with Anchorage, Alaska receiving
nearly 19 hours of daylight [citation:1][citation:2].
Question 9
In the Northern Hemisphere on the winter solstice, which location experiences the longest
amount of sunlight?
A) Fairbanks, Alaska
B) Ross Ice Shelf, Antarctica
C) Mexico City, Mexico
D) Seattle, Washington
Answer: B) Ross Ice Shelf, Antarctica
Rationale: During the Northern Hemisphere winter solstice, the Southern Hemisphere is tilted
toward the sun. Locations near the Antarctic Circle experience 24 hours of daylight, while the
Arctic Circle experiences 24 hours of darkness [citation:1][citation:2].
Question 10
-
During the Northern Hemisphere winter, the sun's path across the sky is shorter and closer to
the horizon than in summer. This seasonal change is caused by:
A) Earth's distance from the sun
B) The tilt of Earth's rotational axis compared to its orbital plane
C) Changes in the sun's energy output
D) The rotation of Earth on its axis
Answer: B) The tilt of Earth's rotational axis compared to its orbital plane
Rationale: Earth's axis is tilted at approximately 23.5 degrees relative to its orbital plane. This tilt
causes different hemispheres to receive more direct sunlight at different times of the year,
creating seasons and changing the sun's apparent path across the sky [citation:1][citation:5].
Question 11
-
Compared to the waters of the continental shelf, the surface waters of the open ocean are
generally much less productive because they:
A) Receive less sunlight
B) Are too cold for most organisms
C) Lack nutrients derived from land and ocean sediment
