Complete Clue List
Across
1. The second planet from the Sun
3. Ball-and-socket is a type of ___.
5. Alexander ___ discovered penicillin.
7. ___-toothed tiger is an extinct species.
8. The blue planet
9. Vinegar and lime are examples of weak ___.
11. A type of crustacean
13. The fusion of two gametes
14. Frogs, salamanders and ___ are amphibians.
15. Alcohol reacts with carboxylic acid to form ___ and water.
Down
1. Arteries and ___ (pl.)
2. ___ of Eratosthenes is used to locate prime numbers.
3. Orange ___ is high in vitamin C.
4. Incisors, canine, premolars and molars are types of ___.
5. Kevlar and Dacron are examples of synthetic ___.
6. Albert Einstein is from this country
9. ___ influenza is also known as bird flu.
10. Sinusitis is also known as ___ infection.
11. ___ tectonic forces caused Pangaea to break.
12. The Sahara desert covers two-thirds of this country.