The student conducted an experiment applying different treatments to 3 plants:
Plant 1 received clean water, 24 hours of light, quiet music, and 15 minutes of radiation. Plant 2 received dirty water, no light, loud music, and 30 minutes of radiation. Plant 3 received rain water, sunlight, no music, and no radiation. The radiation caused some leaves on plant 2 to wilt and die, while it had no effect on plant 1. Plant 1 grew more than plant 2 under the different light and music conditions. Plant 3 grew normally under the conditions it received. The student learned that applying changes to plants can have positive or negative effects, and that plants require care and responsibility like pets.