ITBS Iowa Test of Basic Skills (ITBS) 8th Grade 4

Question 1

Which of the following is an example of a compound sentence?

Accepted Answer

She studied hard, so she passed the test.

Answer

A compound sentence contains two independent clauses joined by a coordinating conjunction like 'so.'

Question 2

The temperature dropped from 12°F to −8°F overnight. By how many degrees did it drop?

Accepted Answer

20°F

Answer

The change = 12 − (−8) = 12 + 8 = 20°F.

Question 3

Which of the following best describes how rivers contribute to the water cycle?

Accepted Answer

They carry water from land back to oceans, where it evaporates.

Answer

Rivers transport freshwater from land to oceans, where evaporation returns it to the atmosphere as part of the water cycle.

Question 4

A store has 360 items in stock. If 45% are sold, how many items remain?

Accepted Answer

198

Answer

45% sold means 55% remain; 0.55 × 360 = 198 items.

Question 5

In which type of text would you most likely find footnotes and a bibliography?

Accepted Answer

A research paper or academic article

Answer

Research papers and academic articles use footnotes and bibliographies to cite sources.

ITBS - Iowa Test of Basic Skills Exam Practice Test