1. Definitions D Click for each heading then for the answer Don’t give up ….be determined

2. Decibel Unit of sound

3. Decomposer Organism that feeds on dead plants and animals Causes things to rot and recycles nutrients

4. Density =Mass Volume Units g/cm 3

5. Digestion Breakdown of food Into soluble molecules Physical digestion= chewing & churning Chemical digestion – using enzymes

6. Diagram of Digestive System A = Mouth B = Oesphagus C= *Liver D = Small Intestine E = Stomach F = *Pancreas G = large Intestine H= Rectum & Anus

7. Diffusion Particles spread out to evenly fill the space they are in (Particles = Can be molecules or atoms)

8. Dilute solution Small amount of solute with Large amount of solvent makes a Dilute solution

9. Diode Allows electric current to flow in ONE direction only Symbol = (* Hons – converts A.C to D.C ) Direction = points to minus

10. D.C. Direct Current Current flows in one direction only Battery produces D.C.

11. Dispersion The breaking up of white light Into the seven colours of the rainbow

12. Desalination Making fresh water from salty water

13. Dispersal Seeds are spread far away from parent plant 4 methods – wind, animal, water and self Cuts down on competition for space, light and water

14. Diagrams of dispersal Wind dispersal = Dandelion Animal dispersal = Strawberry Self dispersal = Pea (explodes)

15. Distillation Evaporation followed by condensation Used to separate 2 liquids with different boiling points -Alcohol and water (or soluble solid and liquid – salt and water)

16. Diagram of Distillation A = Water out B = Condenser C= Mixture D = Water In E = pure water (distillate) Evaporation Condensation

17. Do I know it?? Decibel Decomposer Density Digestion Diffusion Dilute Solution Diode D.C. Dispersion Distillation Desalination Dispersal