Science and Nature 5

Science
1.What is the common name for sodium hydroxide?
Caustic soda
2.What are the three primary colours?
Blue, red and yellow
3.What is the boiling point of water on the Fahrenheit scale?
212
4.Which part of the body is affected by Bright's disease?
The kidney
5.Which metal is the best conductor of electricity?
Silver
6.What is the chemical name of aqua fortis?
Nitric acid
7.What type of animal is a fritillary?
A moth
8.Which element forms the most compounds?
Carbon
9.Which gas has the chemical formula NH3?
Ammonia
10.Which rock can float?
Pumice