- The hydrochloric acid found in your stomach is strong enough to dissolve a nail.
- 2 and 5 are the only prime numbers that end with a 2 or a 5..
- The word 'geometry' comes from the Greek words 'geo', meaning earth, and 'metria', meaning measure..
- Sponges hold more cold water than hot.
- A newborn kangaroo is about 1 inch in tall.
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