Taken in Given out Given a positive charge Given a negative charge
An endothermic process An exothermic process A process without energy A process without heat
Negative Positive Zero Infinite
With breathing Without breathing With oxygen Without oxygen
Carbon dioxide + glucose > alcohol + water Water + yeast > carbon dioxide + alcohol Yeast + water > carbon dioxide + glucose Yeast + glucose > carbon dioxide + alcohol
Chromatography Thermal decomposition Fractional distillation Filtration
The hydration of ethene Boiling banana skins Growing mushrooms Reacting sulphuric acid with limestone