Page 36 - SK Year 6 Science DLP

Do microorganisms grow?
Activity 3

Aim To show that moulds grow.

Apparatus and Transparent plastic, spray bottle, bread, and water
Materials

Steps

1. Spray water on the slice of bread as shown below.
Slice A: 1 spray #TIPS
Slice B: 2 sprays 1. Use three slices of
Slice C: 3 sprays bread from the same
loaf.
2. Do not open the
plastic bags while
slice A slice B slice C observing and
measuring.

HOTS
HOTS

Why are there
Put each slice into separate changes in the colours
transparent plastic bags and of the mould? Explain.
label them as A, B and C.

2. Observe bread slices A, B and C for one week. Record the changes in
size and colour of the moulds on the slices of bread.
3. Discuss your observations with your friends.

1. What is the evidence that shows moulds grow?
2. State your conclusion based on this investigation.

28