Science Experiment – Sunflower

Harness the power of the wind with your own windmill
By AG Education July 15, 2019 Reading Time: < 1

About this experiment

Ever wondered how a sunflower grows? Does a sunflower’s face really follow the sun? Solve the mystery yourself by planting a sunflower and tracking its growth.

Materials

  • Spade or trowel
  • Sunflower seeds
  • Watering can
  • Water
  • Fertiliser
  • Water
  • Compost

Steps:

  1. Choose a location that receives a lot of direct sunlight.
  2. Use the trowel to dig a small trench between 1 and 2 inches deep
  3. Place the sunflower seeds into the trench 4 inches apart and cover back over with dirt.
  4. Water lightly. Continue to water regularly. You can eve add fertiliser to help encourage the flowering of the sunflower.
  5. Record the growth of the sunflower. Every two days, once the seedling emerges, you can measure it and track its growth in a table. Once the flower blooms, use a compass to indetify which way it is facing. Does it face different ways at different times of the day?

Living things like sunflowers need water, air and sunlight to grow. You can watch the sunflower grow from a tiny seed to a tall plant.

Do you want to keep learning? Find more experiments here!