Kettle

A kettle, being watched, and therefore not boiling.

A watched kettle never boils; it waits until you look at none of it, then boils while you fetch the milk.

River

A river, going somewhere.

Rivers flow to the sea because the sea is lower, and the sea is lower because that is where the rivers went.

Ocean

An ocean, seen from the edge.

An ocean is a puddle that got planning permission and then kept going for several thousand miles.

Snow

Snow, lying on the ground where it fell.

Snow is rain that has given up and gone white; no two snowflakes are alike, but they all melt the same.

Puddle

A puddle, shortly after it became a puddle.

A puddle is a small lake that has not been given planning permission, and is always one inch deeper than your shoe.

Cloud

A cloud that looks like a cloud.

Most clouds are found in the sky, where the clouds are; a cloud on the ground is called fog and is considered lost.

Water

A drop of water, falling into some other water.

Water is wet; a local man has reported this and further tests are pending, mainly because he keeps getting wet.

Rain

Rain, falling down onto the ground, which is now wet.

Approximately 100% of rain falls downward, with a margin of error of rain.