Science Trivia

45

What is the common name for the protein-removing device that creates foam to extract organic waste from saltwater tanks?

69

What type of coral does not rely on photosynthetic algae and must be fed directly?

25

What measurement in a reef tank indicates carbonate hardness and the water's ability to resist pH changes?

24

What is the common name for Amphiprion ocellaris, one of the most popular marine aquarium fish?

24

What chemical element, toxic to invertebrates even in trace amounts, must be carefully monitored in reef tanks?

53

What is the nitrogen cycle process called that must occur before adding fish to a new saltwater tank?

56

What type of filtration uses live rock and sand beds to naturally process waste in a marine aquarium?

32

What is the name of the symbiotic algae that live inside coral tissue and provide them with nutrients?

39

What is the ideal specific gravity range for a saltwater reef aquarium?

27

What element does the symbol Fe represent?

11

What was the name of the French inventor who, around 1790, invented a machine designed to provide criminals with a humane method of execution?

2

In the late 1970s, the Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?

12

The #1 cause of choking deaths in children (excluding food related) is caused by the swallowing of what object?

15

This substance with chemical formula C1O H14 N2, is considered a poisonous alkaloid, and is used as an insecticide. Millions of humans worldwide consume it daily, voluntarily. What is it called?

12

What do we call those cells in the retina that respond to low levels of light and allow seeing in the dark?