Importance of Scientific
Investigation Method
Variables and Hypothesis
• Three variables:
• Manipulated : is changed (we
change the
value/quantity)
• Responding : chang...
Examples of hypothesis:
• You change the temperature of water to
see if there is any changes to the volume
of water.
• Hyp...
Answers:
1. a) i. The temperature
ii. Rate of photosynthesis
b) The higher the temperature, the
higher the rate of
photosy...
Answers:
2. a) i. The length of thread
ii. Time taken
iii. Type of pendulum/number of
oscillation
b) The longer the thread...
Answers:
1. a) i. The weight of load
ii. Length of spring
iii. Type of load/ spring
b) The heavier the load, the longer th...
Chapter 1 science form 4
Chapter 1 science form 4
Chapter 1 science form 4
Chapter 1 science form 4
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Chapter 1 science form 4

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Chapter 1 science form 4

  1. 1. Importance of Scientific Investigation Method
  2. 2. 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.
  3. 3. Examples of hypothesis: • You change the temperature of water to see if there is any changes to the volume of water. • Hypothesis: • The more temperature, the less volume of water.
  4. 4. Answers: 1. a) i. The temperature ii. Rate of photosynthesis b) The higher the temperature, the higher the rate of photosynthesis.
  5. 5. 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.
  6. 6. 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.
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