Science Experiment

For our current science topic on plants, we planned, conducted, and reviewed an experiment to explore what plants need to grow. As a class, we learned that plants require space, soil, light, air, water and warmth to thrive.

To test this, we conducted an experiment using cress seeds, removing one essential factor from each group to observe its effect on growth. After leaving the plants over the holidays, we examined the results. We noticed that not all seeds had germinated, some plants varied in height and colour, and some had even begun to grow mould. Interestingly, we observed that some seeds started to germinate even without soil! As a class, we discussed why these changes happened and what they tell us about how plants grow. Take a look below at our plants!

1. No space 2. No light 3. No soil 4.No water 5. No air