GLOBE Carbon Cycle Project

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Plant-a-Plant: Hands-on Photosynthesis Experiments

  • Plants constitute a very important part of the global carbon cycle representing a large carbon pool in their biomass. This activity is designed for the exploration and validation of the necessary sources for plant growth and it demonstrates how CO2 is incorporated into plant biomass. It helps students understand how plants grow and what resources they need for their growth and biomass accumulation.

What do the plants need to grow

  • We have developed 4 types of hands-on experiments with maize so far. Students cultivate their own plants, while manipulating environmental conditions: They alter essential resources such as atmospheric carbon dioxide and make experimental observations of the changes in plant growth.

Plant's sheet
Experiment less CO2

Students:

  • formulate their own hypotheses about plant growth and effects of different resources on it
  • conduct experiments based on given information
  • record observations and measurements
  • evaluate obtained data
  • make conclusions based on obtained data and evaluate the validity of the original hypotheses
You find most of experiments and information in the Plant-a-Plant Manual.
Experiment water Experiment CO2
Sprouted cereal grain

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© J.Albrechtová