Words that start with F

A foal is a baby horse.

Foam is made up of a lot of small bubbles, usually found on the top of a liquid like the sea or a glass of beer. Something that is full of bubbles may also be called foam, such as the foam padding found inside seat cushions.

A focal point is where rays of light converge into a single point. The glass inside a magnifying glass is curved so that it bends all the light that goes through it towards a central point. If you move a magnifying glass up and down in the sun, you will find that at a particular distance away the magnifying glass makes a pinpoint of light that is hot enough to set something on fire. This is called the focal point.

Fog happens when a cloud is down at ground level. Fog covers everything in white mist, and you won't be able to see very far if you are in fog.

You fold something when you bend it over itself neatly. The man in the picture is folding clothes. Folded clothes are neater and take up much less room in the cupboard than unfolded clothes. They will be less wrinkly when you take them out, too.