Practical for plant growth

• What is a practical way to investigate plant growth responses?

  • Investigate the effect of light on growth
  • Use cress seeds in a petri dish
  • Surround with moist filter paper
  • Observe growth direction and angle
• What should you do with cress seeds in the experiment?

  Put them in a petri dish lined with moist paper
• What should surround the petri dish in the experiment?

  Black card
• What is the purpose of cutting a hole in the card?

  To allow light to shine through
• How should light be directed in the experiment?

  Shine light through the hole in the card
• How long should cress seeds be left alone in the experiment?

  One week
• What should be observed after one week?

  The growth direction of the seedlings
• What can be measured to analyze plant growth?

  The angle at which they are growing
• What is a part of a plant that is positively gravitropic?

  Roots
• What are the structures of plants and their functions?

  • Roots: Absorb water and nutrients
  • Stems: Support and transport
  • Leaves: Photosynthesis
  • Flowers: Reproduction