Getting to Know the Horseshoe Crab 1 Student Pages

STUDENT HANDOUTSSTUDENT HANDOUTSSTUDENT HANDOUTSSTUDENT HANDOUTS

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Student K-W-L for “Getting to Know the Horseshoe Crab”

What I Know:

What I Learned:

What I Want to Know:

Getting to Know the Horseshoe Crab 5 Student Pages

HHHHORSESHOE ORSESHOE ORSESHOE ORSESHOE CCCCRAB RAB RAB RAB MMMMODEL ODEL ODEL ODEL IIIINSTRUCTIONSNSTRUCTIONSNSTRUCTIONSNSTRUCTIONS::::

1. If desired, color your model.

2. Cut out female and/or male pieces along the outside solid lines. Female has 3 pieces, male has 4.

3. Cut along the three short solid lines (where marked) in the front of the prosoma.

4. Overlap the three short cuts to the dotted lines, gluing or taping in place.

5. Shape the telson, taping or gluing together.

6. Place the finished telson underneath the opisthosoma, in the rear, using the diagram or picture of a HSC to guide you in placement. Glue or tape the telson in place.

7. Attach the under or ventral side of the body of the HSC to the top section, folding tabs so that they are inside the model. Place glue on tabs before attaching, or use scant tape to hold the two body pieces together.

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Horseshoe Crab Horseshoe Crab Horseshoe Crab Horseshoe Crab Crossword Crossword Crossword Crossword PuzzlePuzzlePuzzlePuzzle Test your knowledge of horseshoe crabs! AcrossAcrossAcrossAcross

1. HSCs burrow in _______ when the water temperature is low.

3. _______HSCs have special claws that are used during spawning.

4. A substance in HSC shells that is used to make sutures and bandages.

5. _______ is used to detect many kinds of bacteria.

7. By studying the HSC’s large compound _______, scientists have learned much about our own.

9. HSCs live on the Atlantic coast of North American from ______ to Yucatan.

11. HSCs use their book_______ to breathe.

12. HSCs don’t have these, which are also known as mandibles.

13. _________depend on HSC eggs for food as they north to their Arctic nesting grounds.

15. Thousands of HSC may be seen spawning on the beaches of Delaware Bay in the late ____________.

16. The HSC’s mouth is found on its ________ side.

18. Dead HSCs were once used as ________ for growing crops.

20. HSCs are more closely related to _________ than to crabs.

21. Females lay about 4000 eggs in each ________ on a sandy beach. DownDownDownDown

2. HSCs inhabited the Earth long before the _________.

3. HSCs grow larger by ________ their old shells.

4. Leg like pincers used to push bits of food toward the HSC’s mouth.

6. _________ male HSCs in Delaware Bay are about 11 inches wide.

8. Another name for the HSC tail.

10. One of the HSC’s favorite foods.

14. The largest concentration of HSCs in the world live in _______ Bay.

17. A substance in the HSC’s ________ cells is used to test drugs for the presence of bacterial contamination.

18. The number of HSC species worldwide.

19. The color of HSC eggs.

20. HSCs live in _______ water.

Getting to Know the Horseshoe Crab 13 Student Pages

Horseshoe Crab Crossword PuzzleHorseshoe Crab Crossword PuzzleHorseshoe Crab Crossword PuzzleHorseshoe Crab Crossword Puzzle

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