Table 1: Observation of Substances A, B, C, D and E in water

Substance	Physical Appearance	Changes observed at 0min	Changes observed after 10min	Inference/Evidence of life
A	Grainy, sandy, brownish	Some of Substance A sank to the bottom of the test tube and the water turned murky	Some of Substance A sank to the bottom of the test tube and the water turned murky	No evidence of life
B	Beige-coloured, small, cylinder-shaped	The water turned a beige colour and became cloudy	The water turned a beige colour and became cloudy	No evidence of life
C	Transparent, round-shaped	Substance C sank to the bottom of the test tube and the water remained transparent	Substance C expanded in size and the water remained transparent	They grew and living things grow
D	Brown, round, small	Substance D sank to the bottom of the test tube and the water remained transparent	Substance D sank to the bottom of the test tube and the water remained transparent	No evidence of life
E	Brown, powdery, sandy	Some of Substance E sank, some floated on the surface, and some in the middle. The water remained transparent	Some of Substance E sank, some floated on the surface, and some in the middle. The water remained transparent	No evidence of life

Substances A, B, C, D and E at 0min

Substances A, B, C, D and E after 10min