The Fundamental Unit of Life — Science STD 9 — Question

What is normal body temperature of cow and buffalo?

Name the law of chemical combination:
Which was given by Proust.

Name the device or machines which convert:
Chemical energy into kinetic energy (or mechanical energy).

Which property of sound leads of the formation of echoes?

Classify the following as elements or compounds:
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea

Name one property of liquids and gases which tells us that their molecules are moving constantly.

Name the subatomic particle whose relative charge is:

1. +1
2. -1
3. 0

What is name of simple tissue that provides flexibility to soft aerial plant parts?

Which of the following are not compounds?
Chlorine gas, Potassium chloride, Iron powder, Iron sulphide, Aluminium foil, Iodine vapour, Graphite, Carbon monoxide, Sulphur powder, Diamond.