A sphere of radius $1 \mathrm{cm}$ is made from silver. If the mass of the sphere is $33 \mathrm{g}$, find the density of silver. (Take $\pi = 3.14$). Write the answer is in four significant figures.

Crossword puzzle:

CLUES – ACROSS
1. SI unit of temperature.
2. A derived quantity.
3. Mass per unit volume.
4. Maximum volume of liquid a container can hold.

CLUES – DOWN
a. A derived quantity.
b. SI unit of volume.
c. A liquid denser than iron.
d. A unit of length is used to measure very long distances.