Table 3: Observation of Substance A, B, C, D and E on wet cotton wool

Table 3: Observation of Substance A, B, C, D and E on wet cotton wool

Substance	Changes observed after 10min	Changes observed after 24h	Changes observed after 36h	Inference/ Evidence of life
A	Substance remained grainy and brown.	Substance remained grainy and brown.	Substance still remained grainy and brownish.	No evidence of life.
B	Substance appears as creamy coloured liquid.	Substance appears as creamy coloured liquid.	Substance remains as creamy coloured liquid.	No evidence of life.
C	Substance expanded in size.	Substance appears even larger.	The size of the substance is the biggest among the three timings.	Living things grow.
D	Substance sprouted some yellow things.	More of the substance sprouted yellow things.	The yellow things turned green.	Living things grow.
E	Substance remained brown and powdery.	White things appeared in between the substance.	More white things appeared.	Living things respond to changes.

Substances A, B and C after 10min (clockwise from left)

Substance D after 10min

Substance E after 10min

Substances D and E after 10min (anti clockwise)

Substances A, B and C after 24hrs (clockwise from bottom)

Substance D after 24hrs

Substance E after 24 hours

Substance A, B and C after 36 hours (clockwise from bottom)

Substance B after 36 hours

Substance A after 36 hours

Substance C after 36 hours

Substance D after 36 hours

Substance E after 36 hours

Table 2: Observation of Substance A, B, C, D and E in glucose

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)