Relative units to measure length, mass and volume of liquids

Long and short

Tall and short/ high and low

Near and far

The length of the book is the same as 2 pencils long

The length of the watch is equal to 7 eraser

A hand span

1 step

1 arm span

A is heavier than B

Compare A and B

The mass of red book is less than the mass of blue book

Compare the weight of books