Learning Task No. 6: Do an investigation on the following. Be careful during the
conduct of the experimentation. Ask help from your parent or siblings if and when
necessary
A. Bacteria colony
1. Get a potato or kamote and take a slice.
2. Drop-in boiling water for three minutes.
3. Get a cotton bud (Q tip) and swipe it against your tongue or inner cheek.
4. Streak it on the surface of the potato or kamote. You can write a big letter X, Y
or Z.
5. Put the sliced potato or kamote in a clean see-through plastic bag or container
and keep it in a dark cabinet for 2-3 days. Observe and write what you saw on
the table provided below.

Observation day
day 1
day 2
day 3

Obervation of bacterial colony ​