Sublimation

 

Practice Question

A substance is placed in a laboratory freezer at very low temperature. After several hours, the solid sample becomes smaller, but no liquid is ever observed. Instead, gas particles are detected in the air inside the freezer.

Which process best explains this change?

A. Melting

B. Condensation

C. Sublimation

D. Deposition

Question

A scientist notices that frost forms on the inside of a freezer when water vapor in the air turns directly into ice without becoming liquid water first.

What process is occurring?

A. Freezing

B. Condensation

C. Sublimation

D. Deposition

#Sublimation is the process when a solid changes directly into a gas without becoming a liquid first.

Simple example:

 • Dry ice (#solid #carbon #dioxide) → #gas

 • Snow or ice slowly disappearing on a cold day without melting 

This is different from:

 • Melting: solid → liquid

 • Boiling/Evaporation: liquid → gas

 • Condensation: gas → liquid

• Melting: solid → liquid
• Freezing: liquid → solid
• Boiling / Evaporation: liquid → gas
• Condensation: gas → liquid
• Sublimation: solid → gas (skips liquid)
• Deposition: gas → solid

 

 

📘 TEAS Prefix Mini Chart (Simple & Useful)

Prefix	Meaning	Synonyms	Example
mid-	middle	center, halfway	midterm
inter-	between	among, in-between	international
intra-	within	inside	intravenous
sub-	under	below	subway
super-	above	over, extra	superhuman
pre-	before	prior	preview
post-	after	later	postoperative
anti-	against	opposed to	antibiotic
trans-	across	through	transport
uni-	one	single	uniform
bi-	two	double	bilingual

pronouns indicate- that -

 

• ATI TEAS VII Online Practice B - English and Language Usage

Question 26 loaded rationals provided

Question: 26 of 33

INCORRECT

• Time Remaining: 07:13:22

The company _____ made these is no longer in business.

Which of the following pronouns correctly completes the sentence above?

who

MY ANSWER

A personal pronoun is incorrect for this context.

whom

A personal pronoun is incorrect for this context.

which

This pronoun indicates a nonessential clause, which is incorrect for this context.

that

Since the adjective clause refers to a company, it should not use a personal pronoun. Also, since the clause is essential to the reader's understanding of the company in question, the relative pronoun should be "that" rather than "which."