Fine roots are the most permeable portion of a root system, and are thought to have the greatest ability to absorb water, particularly in herbaceous (i.e., non-woody) plants (McCully 1999).

Plants also need carbon dioxide from air and sunlight to make their food. Slide 1 of 3, , Plants absorb water from the soil through their roots. Plant roots have tiny hairs on them so they can ...

Explain that materials that do not absorb water are also useful like the rubber used for rain boots ... Begin a discussion by telling students that scientists investigate, describe, and try to ...