About this worksheet
A 5th grade check on the respiratory system. Part 1 asks students to label the trachea, bronchi, lungs and diaphragm on a chest diagram with a word bank. Part 2 has five multiple-choice questions about oxygen, the windpipe, the diaphragm, carbon dioxide and the ribs. Part 3 asks what happens in the alveoli. An answer key is on page 3.


