1.
Substance with sour taste and pH value less than 7
2.
Substance with bitter taste and pH value higher than 7
3.
Gas produced by plant during photosynthesis
4.
Source of energy in photosynthesis
5.
Simple sugar produced by plant,it has sweet taste
6.
Solid substance that is soluble in water
7.
Liquid use to dissolve solute
8.
Mixture of soluble solute in solvent
9.
Organ that will pump blood in body
10.
Process when solid become liquid
11.
Process when liquid become gas
12.
Process where gas become liquid
13.
Process where liquid become solid
14.
Substance that will change colour if for acid,neutral or alkali
15.
Burning of substance with oxygen to form carbon dioxide
