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