Write the density of water at 4°C.

Explain the meaning of the term speed.

A car travels with a speed 12 m s^-1, while a scooter travels with a speed 36 km h^-1. Which of the two travels faster?

The length, breadth and height of a water tank are 5 m, 2.5 m and 1.25 m respectively. Calculate the capacity of the water tank in:

a. m³

b. litre