ITBS Iowa Test of Basic Skills (ITBS) 5th Grade 4

Question 1

Which part of a plant cell is responsible for photosynthesis?

Accepted Answer

Chloroplast

Answer

Chloroplasts contain chlorophyll and are the site of photosynthesis in plant cells.

Question 2

Which punctuation mark is used to show possession?

Accepted Answer

Apostrophe

Answer

An apostrophe followed by 's' (or just an apostrophe after a plural noun) shows ownership.

Question 3

A bag has 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of picking a blue marble?

Accepted Answer

3/10

Answer

Probability = 3 blue ÷ 10 total = 3/10.

Question 4

Which author wrote 'Charlotte's Web'?

Accepted Answer

E.B. White

Answer

Charlotte's Web was written by E.B. White and published in 1952.

Question 5

In which layer of Earth's atmosphere does weather occur?

Accepted Answer

Troposphere

Answer

The troposphere is the lowest layer of the atmosphere and is where weather events occur.

ITBS - Iowa Test of Basic Skills Exam Practice Test