Students play a variation of chain tag that demonstrates that a plant needs water, minerals, carbon dioxide and sunlight to grow.
Unlike animals, plants make their own food, using a process called photosynthesis.
To thrive, plants require:
- water (with minerals)
- carbon dioxide
Using special parts on their leaves, they absorb carbon dioxide and sunlight (during the day), and using their roots and a process called capillary action, they absorb water and minerals.
During photosynthesis, the plant uses energy from sunlight to take the hydrogen from a water molecule and add the carbon dioxide, to produce a sugar (also called a carbohydrate). Plants use these sugars to grow and produce structures like more roots, stems, leaves and fruit that we eat.