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CROSSWORD PUZZLE

DIRECTIONS: Use the clues below to fill in the crossword puzzle. All answers can be found in this issue.

Permission granted by Science World to reproduce for classroom use only. ©2013 by Scholastic Inc. OCTOBER 28, 2013

across1. neutral particles in the nucleus of an atom 3. This joint acts as a catapult when a pitcher throws. 6. Parasitic worms can cause these animals to spend time in well-lit spots they would normally avoid. 8. A new device protects this organ before a transplant. 11. a metallic mixture 12. Anthropologists compared human anatomy with that of this primate to understand our throwing abilities. 13. Mars’s atmosphere doesn’t have enough of this gas for humans to breathe. 14. a sun-tracking device

DOWN2. a tiny camera on the end of a long tube 4. term for an organism infected with a parasite 5. Governments are requesting access to accounts on this website during crime investigations. 7. newfound mammal species

9. key ingredient in a newly tested protective coating for buildings10. This salt mixture can help preserve a mummy. 12. Tiny particles of this element may prevent clothes from getting stinky. 14. This U.S. state is home to an experiment simulating life on Mars. 15. An exceptionally large one of these caused digestive problems for a tiger.

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