Identifying the problem

Identifying the variables

Making a hypothesis

Observing phenomena

Planning the investigation

Conduct the investigation

Collecting data

Analysing and interpreting data

Making conclusion

Accepted.

Write a report. Rejected.

Plan again.

Importance of Scientific Investigation Method

• To gain a scientific knowledge

• Train us to think critically and creatively

• Train us to be more observant and record observation

Variables and Hypothesis

• Three variables:

• Manipulated : is changed (we change the

value/quantity)

• Responding : changing

• Constant : kept constant

• Hypothesis: relationship between manipulated and responding variables.

Examples of hypothesis:

• You change the temperature of water to see if there is any changes to the volume of water.

• Hypothesis:

• The higher the temperature, the smaller volume of water.

Answers:

2. a) i. The length of thread

ii. Time taken

iii. Type of pendulum/number of oscillation

b) The longer the thread, the longer

time take to oscillate.

Answers:

1. a) i. The weight of load

ii. Length of spring

iii. Type of load/ spring

b) The heavier the load, the longer the spring.

c) Hypothesis is accepted. The heavier the

load, the longer the spring.