fluids in English:

Are there any liquids or sharp objects in your luggage?

A sponge absorbs liquids.

When you have a cold, you should drink plenty of liquids.

Liquids are heavier than gases.

I tried this and that, blending yellow with white powders and obtaining brown, mixing crystals with powders and getting dust, combining liquids with solids and making mud.

For the first month after the accident she could only drink liquids through a straw.