If 0.5g/ml or less is dilute and more than this is concentrated, which of these is dilute.

If greater than 0.4 is concentrated and greater than 0.8 is saturated which of these is concentrated.

If 1 is dilute, 1 to 2 is concentrated and over 2 is saturated which of these is saturated.

Excretory system includes the following organ(s).

Liquid changes to steam.

Solid changes phase directly to a gas.

Water vapour becomes a liquid.

Used to separate dye from inks.

A liquid which passes through a filter.

Material trapped by filter paper.

Method of separating insoluble mixtures.

Process to separate seawater into salt and water.

Increases reaction rate of a chemical reaction.

Spraying deodorant releases molecules into the air that will spread evenly and mix with the air particles.

Cutting an onion releases it's molecules into the air and makes people near us cry before it will reach anyone further away.

Water is the universal solvent. This is because

If two things are insoluble it means they cannot mix.

An example of a method to separate insoluble substances is

Methods of separating soluble substances.