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How Do Different Levels of Carbon Dioxide Affect the Height and Biomass of Radish Plants?

CSEF · 2017 Toxicology

Olivia C. Borsch · Quail Lake Environmental Charter School, Clovis, Fresno County

Overview

Objectives/Goals If two times the amount of carbon dioxide is added to the plants, then the height and biomass will increase. Methods/Materials Homemade carbon dioxide generators, plant containers with lids, radish seeds, soil, water. Measured height and weighed biomass of each plant after 10 days. Results The height of the plants with two carbon dioxide generators was 0.99cm shorter than the control group and their biomass was 0.0085g lighter per plant. Conclusions/Discussion The hypothesis of this project was unsupported. The biomass and height of the plants with added carbon dioxide were generally lower and less productive.

Summary statement

Radish plants that received extra carbon dioxide showed negative effects as measured by their height and biomass.

Help received

My science teacher helped me look up information on carbon dioxide generators. Then I built and performed the experiments myself.

Competition history

  • CSEF 2017 Toxicology · Entry J2202

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