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Crab Anatomy Worksheet

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Crab Anatomy Worksheet

Crab Anatomy Worksheet

Crab anatomy illustration

🦀 Part 1: Crab Body Parts

1. Label the main parts of a crab's body:
2. Circle the correct answer - What is the hard outer covering of a crab called?

Exoskeleton

Shell

Skin

Carapace

3. How many legs does a crab have?

6 legs

8 legs

10 legs

12 legs

🔍 Part 2: Crab Features

4. Check all the features that crabs have:

Claws (chelae)

Antennae

Gills

Wings

Eyes on stalks

Segmented abdomen

5. Fill in the blanks about crab anatomy:

Crabs breathe using __________ which are located under their __________. Their eyes are positioned on moveable __________ which help them see in all directions. The large front claws are called __________ and are used for catching food and defence.

🎨 Part 3: Drawing and Observation

6. Draw a crab from above, showing all its main body parts:
7. Draw a close-up view of a crab's claw (chela):

🔬 Part 4: Crab Functions

8. Match each body part with its main function:
1. Gills
2. Claws (chelae)
3. Walking legs
4. Eye stalks
5. Antennae
A. Movement and locomotion
B. Breathing underwater
C. Sensing chemicals and touch
D. Vision and spotting predators
E. Catching food and defence
9. Explain how a crab's exoskeleton helps protect it:
10. Describe what happens when a crab outgrows its exoskeleton:

🌊 Part 5: Crab Habitat and Behaviour

11. Where do most crabs live?

Only in fresh water

Only on land

In marine and coastal environments

Only in trees

12. Describe how crabs move and why they move sideways:
13. List three things that crabs eat:

1. _________________________

2. _________________________

3. _________________________

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