Definitions s Click for each heading then for the answer STUDY

Solute The substance that gets dissolved e.g. sugar

Solvent The liquid that does the dissolving e.g water

Solution Solute and solvent mixed together e.g. sweet tea

Soluble Means something will dissolve Copper sulphate is soluble in water but gloss paint is insoluble in water

Sound Is a form of energy caused by vibrations Measured in decibels Needs a medium to travel through Echo is reflected sound

Speed Speed = Distance Time m s -1 Dad’s Silly Triangle

Salt Formed when an acid and base neutralise each other H in acid is replaced by a metal Sodium Chloride and Calcium chloride

Sense organ Organ used to collect information about the environment ( inside or outside) Eyes –detect light(seeing) ears - detect sound (hearing) skin – detect contact (touch) nose – detect chemicals in air (smell) tongue – detect chemicals in food (taste )

Sensitivity Ability of an organism to react to stimulus

Screening Stage 1 in water treatment twigs and rubbish are removed by a wire mesh

Settling Stage 2 in water treatment large particles sink to the bottom of the a settlement tank.

Soft Water Makes a lather easily with soap Check – do I know hard water – cause, –Calcium ions dissolved in water Removal –Ion exchanger takes out Calcium ions advantages –Tastes good, good for bones and teeth and brewing Disadvantages –Wastes soap, limescale blocks pipes

Do I know it?? Solute Solvent Solution Soluble Sound Speed Salt Sense organ Sensitivity Settling Screening Soft water