English Practice

In 2009, Libbrecht and Arnold's experiments revealed that triangular snowflakes begin with the same process of chemical bonding and forms a hexagonal shape.

• No change

• were they to form

• if they formed

• form

Tags

CCSS.L.4.1C

CCSS.L.9-10.1B

A mile was good enough as Cox closed in on the shore and her goal.

• NO CHANGE

• enough. As

• enough, as

• enough,

Tags

CCSS.L.4.2C

CCSS.L.6.2A

In 1946, he left the Army and began working at a job that was a self-employed photographer.

• NO CHANGE

• for himself as

• as

• DELETE the underlined portion

Tags

CCSS.L.2.1E

CCSS.L.3.1A

CCSS.L.3.1G

Snowflakes form from tiny water droplets, following a specific process of chemical bonding as they freeze, which results in a six-sided figure.

• No change

• form, from tiny, water droplets,

• form from tiny, water, droplets

• form, from tiny water droplets

Tags

CCSS.L.4.2B

CCSS.L.4.2C

CCSS.L.5.2B

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,

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RL.11-12.2

CCSS.RL.8.2

CCSS.RL.9-10.2

By re-creating snowflake formation, a discovery has revealed to scientists Kenneth Libbrecht and Hannah Arnold the cause of this apparent variation.

• No change

• the discovery of the cause of this apparent variation has been made by scientists Kenneth Libbrecht and Hannah Arnold

• scientists Kenneth Libbrecht and Hannah Arnold have discovered the cause of this apparent variation.

• the cause of this apparent variation has been discovered by scientists Kenneth Libbrecht and Hannah Arnold

Tags

CCSS.RI.11-12.3

CCSS.RI.11-12.5

CCSS.RI.8.3

CCSS.RI.9-10.3

CCSS.RI.9-10.5

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

Tags

CCSS.L.3.1E

CCSS.L.4.1B

CCSS.L.5.1.B-D

CCSS.L.5.1C

CCSS.L.5.1D

Antarctic seals rely on body fat for warmth, so Cox gained twelve pounds, it was weight that she hoped would keep her warm in the icy water.

• NO CHANGE

• she put on weight

• she gained it so

• weight

Tags

CCSS.RI. 9-10.2

CCSS.RI.11-12.2

CCSS.RL.11-12.2

CCSS.RL.8.2

CCSS.RL.9-10.2

Her initial fatigue and exhaustion turned into exhiliration as she moved through water that was clearer and bluer than any she'd swum in before.

• NO CHANGE

• exhaustion

• exhaustion that left her feeling fatigued

• exhausting fatigue

Tags

CCSS.L.3.1A

Cox knew, however, that the longer she stayed in the water, the longer it would bring her body temperature--which fell to 95.5 degrees Fahrenheit by the end of the swim--back to normal.

• NO CHANGE

• back to a normal body temperature.

• in other words, back to normal.

• which was normal.

Tags

CCSS.RI.11-12.3

CCSS.RI.11-12.5

CCSS.RI.8.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5