In the shade I'm cold, in the sun I'm hot

One day during recess, while Violeta and Clara were playing Hidden with their companions, without wanting to, they came to hide in a small garden that they had never seen before. While they waited to be found, they carefully observed the place. It was dark and cool, and apparently some of the plants there were different from those across the yard.

When they came back from recess they had a Natural Sciences class, there Professor Salvatierra told them that all plants need light, air, water and nutrients to live.

This information aroused the curiosity of the little scientists and, very excited, they told the professor what they had observed in the unknown garden.

Until at one point they asked him: Why in some places there are plants that in other places there are not, if all do they need the same to live? Could it be that plants prefer live in some places and not in others?

The teacher, very happy with the questions from Violeta and Clara, decided to investigate what was happening with the plants in the schoolyard, and together with his students they carried out the following study:

Question:

Which and how many plants live in sunny and shady places in the schoolyard?

* What is measured? The type and number of plants..

* What is compared? Sunny places and shady places in the schoolyard.