Collect some aquatic plants-cut the leaves and stems. Observe them under microscope and record your observations like air presence/absence of air spaces etc and answer the below: Why do they float on
Structure and Function | manoa.hawaii.edu/ExploringOurFluidEarth
Clover plant stem, light microscope (DR KEITH WHEELER/SCIENCE PHOTO LIBRARY) | Microscopic photography, Micro photography, Bio art
Plant Identification | Pond Algae, Grass, Weeds, Moss, and More