ACT Prep (English) Questions And
Answers
A - Answer - Snowflakes *form from tiny water droplets,* following a specific process of chemical
bonding as they freeze, which results in a six-sided figure.
A. No change
B. form, from tiny, water droplets,
C. form from tiny, water, droplets
D. form, from tiny water droplets
J - Answer - The rare "triangular" snowflake, *similarly,* confounded scientists for years because it
apparently defied the basic laws of chemistry.
F. No change
G. for example,
H. additionally,
J. however,
D - Answer - The seemingly triangular shape of those snowflakes suggests *that forming* through a
different process of chemical bonding.
A. No change
B. the manner in which formation
C. which had formed
D. that they form
, H - Answer - By re-creating snowflake formation, *a discovery has revealed to scientists Kenneth
Libbrecht and Hannah Arnold the cause of this apparent variation.*
F. No change
G. the discovery of the cause of this apparent variation has been made by scientists Kenneth Libbrecht
and Hannah Arnold
H. scientists Kenneth Libbrecht and Hannah Arnold have discovered the cause of this apparent variation.
J. the cause of this apparent variation has been discovered by scientists Kenneth Libbrecht and Hannah
Arnold
B - Answer - Snowflakes begin to form when water in the atmosphere *freezes it causes* the water
molecules to bond into a hexagonal shape.
A. No change
B. freezes, causing
C. freezes, it causes
D. freezes, this causes
J - Answer - During the flake's descent from Earth's upper atmosphere, other water vapor molecules
*bumps* into the hexagonal structure.
F. No change
G. has bumped
H. bumped
J. bump
B - Answer - *Bypassing the liquid water phase*, those molecules condense directly onto the
established hexagonal pattern. As a result, the flake grows outward into bigger and more complex
hexagonal arrangements surrounding the original hexagonal shape at the center of the flake.
,If the writer were to delete the * * portion (adjusting the capitalization as needed), the sentence could
primarily lose:
A. an explanation of the process water molecules undergo to change from liquid to vapor to solid.
B. a detail that mentions a step some water molecules skip in changing from vapor to solid.
C. a visual description of what water vapor molecules look like.
D. an explanation of how molecules react to various air temperatures.
J - Answer - In 2009, Libbrecht and Arnold's experiments revealed that triangular snowflakes begin with
the same process of chemical bonding and *forms* a hexagonal shape.
F. No change
G. were they to form
H. if they formed
J. form
C - Answer - The triangular shape is an illusion resulting from one significant addition to the *process*
dust.
A. No change
B. process is
C. process:
D. process;
J and B - Answer - Triangular snowflakes begin to form when a tiny dust particle or other such impurity
collides with the flake as it falls, thereby pushing one edge upward. The greater *the pressure from the
wind,* causes bonds to form *quick* at this edge than in the rest of the snowflake.
F. No change
G. pressure from the wind, which
, H. the pressure, as the wind
J. pressure from the wind
A. No change
B. more quickly
C. most quickly
D. quickest
G - Answer - The resulting snowflake has three long sides and three sides that are so short they are
difficult to detect. Although these snowflakes appear to have a triangular *shape--*they actually have a
hexagonal pattern.
F. No change
G. shape,
H. shape;
J. shape:
A - Answer - Such snowflakes offer evidence that even when impurities interfere, *the basic laws of
chemistry still apply.*
Which choice most effectively concludes the sentence and the essay?
A. No change
B. scientists can be certain that a solution to even the most confusing event will be found
C. snowflakes will still fall if atmospheric conditions are favorable.
D. snowflakes come in many different shapes and sizes.
H - Answer - Bundled up in wool sweaters and thick *coats, and we watched* the sun setting on Mt.
Fuji in Japan.
Answers
A - Answer - Snowflakes *form from tiny water droplets,* following a specific process of chemical
bonding as they freeze, which results in a six-sided figure.
A. No change
B. form, from tiny, water droplets,
C. form from tiny, water, droplets
D. form, from tiny water droplets
J - Answer - The rare "triangular" snowflake, *similarly,* confounded scientists for years because it
apparently defied the basic laws of chemistry.
F. No change
G. for example,
H. additionally,
J. however,
D - Answer - The seemingly triangular shape of those snowflakes suggests *that forming* through a
different process of chemical bonding.
A. No change
B. the manner in which formation
C. which had formed
D. that they form
, H - Answer - By re-creating snowflake formation, *a discovery has revealed to scientists Kenneth
Libbrecht and Hannah Arnold the cause of this apparent variation.*
F. No change
G. the discovery of the cause of this apparent variation has been made by scientists Kenneth Libbrecht
and Hannah Arnold
H. scientists Kenneth Libbrecht and Hannah Arnold have discovered the cause of this apparent variation.
J. the cause of this apparent variation has been discovered by scientists Kenneth Libbrecht and Hannah
Arnold
B - Answer - Snowflakes begin to form when water in the atmosphere *freezes it causes* the water
molecules to bond into a hexagonal shape.
A. No change
B. freezes, causing
C. freezes, it causes
D. freezes, this causes
J - Answer - During the flake's descent from Earth's upper atmosphere, other water vapor molecules
*bumps* into the hexagonal structure.
F. No change
G. has bumped
H. bumped
J. bump
B - Answer - *Bypassing the liquid water phase*, those molecules condense directly onto the
established hexagonal pattern. As a result, the flake grows outward into bigger and more complex
hexagonal arrangements surrounding the original hexagonal shape at the center of the flake.
,If the writer were to delete the * * portion (adjusting the capitalization as needed), the sentence could
primarily lose:
A. an explanation of the process water molecules undergo to change from liquid to vapor to solid.
B. a detail that mentions a step some water molecules skip in changing from vapor to solid.
C. a visual description of what water vapor molecules look like.
D. an explanation of how molecules react to various air temperatures.
J - Answer - In 2009, Libbrecht and Arnold's experiments revealed that triangular snowflakes begin with
the same process of chemical bonding and *forms* a hexagonal shape.
F. No change
G. were they to form
H. if they formed
J. form
C - Answer - The triangular shape is an illusion resulting from one significant addition to the *process*
dust.
A. No change
B. process is
C. process:
D. process;
J and B - Answer - Triangular snowflakes begin to form when a tiny dust particle or other such impurity
collides with the flake as it falls, thereby pushing one edge upward. The greater *the pressure from the
wind,* causes bonds to form *quick* at this edge than in the rest of the snowflake.
F. No change
G. pressure from the wind, which
, H. the pressure, as the wind
J. pressure from the wind
A. No change
B. more quickly
C. most quickly
D. quickest
G - Answer - The resulting snowflake has three long sides and three sides that are so short they are
difficult to detect. Although these snowflakes appear to have a triangular *shape--*they actually have a
hexagonal pattern.
F. No change
G. shape,
H. shape;
J. shape:
A - Answer - Such snowflakes offer evidence that even when impurities interfere, *the basic laws of
chemistry still apply.*
Which choice most effectively concludes the sentence and the essay?
A. No change
B. scientists can be certain that a solution to even the most confusing event will be found
C. snowflakes will still fall if atmospheric conditions are favorable.
D. snowflakes come in many different shapes and sizes.
H - Answer - Bundled up in wool sweaters and thick *coats, and we watched* the sun setting on Mt.
Fuji in Japan.
