Breathing and gas exchange · Puzzle
Crossword
6 clues from this topic’s key words.
Tap a square, then tap the letters under the grid. Tap the square again to change between across and down.
1 2 3 4 5 6
Across 3 Bones that make a cage around the lungs (4)5 The windpipe: carries air from the nose and mouth towards the lungs (7)6 A measure of the amount of air breathed in or out (4,6)Down 1 Tiny pores in a leaf that let gases in and out (7)2 A sheet of muscle underneath the lungs (9)4 Tiny air sacs at the ends of the bronchioles (7)Answers 1 down : Tiny pores in a leaf that let gases in and out. Stomata 2 down : A sheet of muscle underneath the lungs. Diaphragm 3 across : Bones that make a cage around the lungs. Ribs 4 down : Tiny air sacs at the ends of the bronchioles. Alveoli 5 across : The windpipe: carries air from the nose and mouth towards the lungs. Trachea 6 across : A measure of the amount of air breathed in or out. Lung volume The worksheet The same crossword as a worksheet to print.
The Breathing and gas exchange puzzle booklet has the topic’s puzzles and every lesson’s, with their answers. This worksheet is page 2, and its answers are on page 3.
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