The five W's are What, Who, When, Where, Why and the 1H is How

A cube is L x W x H where L=W=H.

A km3 has L, W and H of 1 km. Each km is 1000 meters and each meter is 100 centimeters.

Therefore 1 km is 1000 x 100 cm or 100,000 cm. This is L and W and H.

L x W x H = 100,000 x 100,000 x 100,000

L x W x H = 1,000,000,000,000,000 cm3

1 km3 = 1,000,000,000,000,000 cm3

1 km3 = 1 x 1015 cm3

1 M and H D

5 W's:

* Who?

* What?

* When?

* Where?

* Why?

1 H:

* How?

when,where,what,who and why also 1 H.....how