What’s Stomata With You?

what's stomata with youUsing Leaf Epidermal Peels to Determine Stomatal Density

by Catherine Wade and William Callahan

This module provides an opportunity for students to observe leaf stomata and make predictions about interactions between plants and environmental conditions. After introducing students to the basic form and function of stomata and discussing photosynthesis and transpiration, students will hypothesize about the distribution of stomata on the upper and lower leaf surfaces. Then, they make wet mount slides of leaf epidermal peels to view stomata under a microscope and calculate average stomatal densities for the top and bottom of the leaf.

Fellow Catherine Wade produced this video to explain the concepts behind leaf stomata and their importance in regulating water loss in plants.

Docs: fulltext.docx   worksheet.docx
Keywords: argument, communication, data, explanations, investigations, HS-LS1.A, HS-LS1.C, math, plants, prediction, questions, stability, stomata, structure, transpiration

Otters and Urchins

otters and urchinsEcology of The Kelp Forest

by Kristin McCully and Jack Horner

This multi-week modules is designed as a general introduction to ecology as a science, while exploring the excitement of the charismatic kelp forest ecosystem. It introduces the fields of population, community, ecosystem, and conservation ecology, and helps build skills in using equations, creating graphs, interpreting maps, and modeling ecological systems.

Docs: poplecture.pdf   ecolecture.pdf   commlecture.pdf   introlecture.pdf   conslecture.pdf   worksheets.doc   worksheetskey.pdf   studyguide.pdf   studyguidekey.pdf
Keywords: communication, data, ecosystem, explanations, graphs, kelp forest, HS-LS1.C, HS-LS2.A, HS-LS2.B, HS-LS2.C, marine food web, marine science, math, otters, patterns, scale, stability, systems, urchins