Table 2: Observation of Substance A, B, C, D and E in glucose
Substance
|
Changes observed at 0min
|
Changes observed after 10min
|
Inference/ Evidence of life
|
A
|
· Some substance sank to the bottom of the test tube and some
dissolved.
· Water turned murky.
|
· Some substance sank to the bottom of the test tube and some
dissolved.
· Water turned murky.
|
No evidence of life.
|
B
|
· Substance dissolved in the water.
· Water turned milky.
|
· Substance dissolved in the water.
· Water turned milky.
|
No evidence of life.
|
C
|
· Substance sank to the bottom of the test tube.
· Water remained transparent.
|
· Substance expanded in size.
· Water remained transparent.
|
Living things grow.
|
D
|
· Substance sank to the bottom of the test tube.
· Water remained transparent.
|
· Substance sprouted some yellow
· Water remained transparent.
|
Living things grow.
|
E
|
· Some substance sank, some in midair and some floated on the
surface, creating a ring.
· Water remained transparent.
|
· Some substance sank, some in midair and some floated on the
surface, creating a ring.
· Water remained transparent.
|
No evidence of life.
|
 |
| Substance A at 0min |
 |
| Substances A and B at 0min (left to right) |
 |
| Substances C and D at 0min (left to right) |
 |
| Substance E at 0min |
 |
| Substances A, B and C after 10min (left to right) |
 |
| Substances D and E after 10min (left to right) |
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