What are the control variables in the plant response practical?

  1. Type of seeds
  2. Volume of water
  3. Germination environment

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What equipment is needed for the plant response practical?

  1. Seeds (mustard)
  2. Petri dishes x 3
  3. Cotton wool
  4. Ruler
  5. Water

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How often should the seedlings be watered?

Daily.

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How should the petri dishes be positioned when investigating the effect of light on seedling growth?

  1. One in direct sunlight
  2. One in partial light
  3. One in a dark cupboard

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How often should the height of seedlings be measured?

Every day for a week.

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