- 1. What is the hard outer covering of a clam called?
A) Shell
B) Exoskeleton
C) Chiton
D) Carapace
- 2. How many shells does a clam have?
A) Two
B) Three
C) One
D) Four
- 3. What body part of a clam is used to dig and move in the sand?
A) Siphon
B) Foot
C) Tentacle
D) Gill
- 4. Which of the following is not a color that clams can be?
A) White
B) Purple
C) Blue
D) Brown
- 5. What is the scientific class of clams?
A) Bivalvia
B) Gastropoda
C) Cephalopoda
D) Mollusca
- 6. What do clams filter from the water to feed?
A) Fish
B) Plankton
C) Sand
D) Algae
- 7. What is the largest clam species in the world?
A) Geoduck
B) Quahog
C) Giant clam
D) Razor clam
- 8. What do clams use to create new shell material and repair damage?
A) Calcium carbonate
B) Silica
C) Chitin
D) Keratin
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