1. Definitions s Click for each heading then for the answer STUDY

2. Solute The substance that gets dissolved e.g. sugar

3. Solvent The liquid that does the dissolving e.g water

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

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

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

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

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

10. 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 )

11. Sensitivity Ability of an organism to react to stimulus

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

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

14. 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

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