1.
Pure water has a pH level of a around what number?
2.
Nimbus, cumulus and stratus are types of what?
3.
The death of every member of a particular species is known as what?
4.
Bronze is made from what two metals?
5.
What is the 7th element on the periodic table of elements?
6.
What is it called when a solid changes directly into a gas?
7.
What is typically the slowest swimming stroke, freestroke, backstroke, breaststroke or butterfly?
8.
In the Winter Olympic sport of curling, what type of rock are the curling stones made from?
9.
The shape of DNA is known as?
10.
The bones that make up your spine are called what?
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