What you MUST KNOW to score well for PSLE Science

07 Feb What you MUST KNOW to score well for PSLE Science

PSLE Science students cannot us any shortcuts in their science answers. Answer have to be specific, well explained and the correct science keywords must be used.

Science Question: Why will aquatic plants and animals die if there are algae growing on the surface of the water?

Shortcut: There is less sunlight and the plants will die.
Answer: The algae growing on the surface of the water blocks sunlight and decreases the amount of sunlight received by the submerged plants. The rate of photosynthesis decreases and less oxygen and less food is produced by the plant. Eventually, the aquatic plants and animals will die due to lack of food and oxygen.

PSLE scienc students can reduce shortcuts by asking WHY?
Why did the plants die?
Why was there lack of food and oxygen?
Why did rate of photosynthesis decrease?
Why was there less sunlight?

Chain all the parts to fully answer the question.

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