Stem transport in trees becomes concrete in this Grade 6 Science learning stations activity focused on how xylem and phloem function when trees face environmental stress. Designed within an Alberta Trees and Forests context, the resource moves students beyond naming vascular tissues to explaining how disruptions to transport can affect tree growth, survival, and recovery.

Explore Transport Under Stress

Students work through station cards that connect stem structure and function with conditions that can interfere with the movement of resources. They examine xylem and phloem while comparing the effects of drought, insects, disease, fire, and freeze-thaw cycles on vascular tissue and transport.

The station format supports discussion and comparison as students record information from each case and then complete a wrap-up that brings the ideas together. This makes the activity useful when teaching plant transport, tree physiology, environmental stress, or the Trees and Forests topic in Grade 6 Science.

What Students Work With

• Station cards focused on stem transport and environmental stress
• A station recording sheet for organizing information from the cases
• A station wrap-up for connecting ideas across the activity

Throughout the activity, students explain how xylem moves water and minerals and how phloem transports sugars. They then compare how different stressors can affect vascular tissue and connect those changes to the larger consequences for a tree.

Teacher Support Included

The Answer Key PDF includes a Teacher Guide with learning objectives, teaching tips, discussion questions, and common mistakes. This support gives teachers a clear way to introduce the activity, guide discussion, and address misunderstandings about xylem, phloem, and stem transport.

Flexible Classroom Use

Use the resource as a learning stations lesson during a Trees and Forests unit, as practice after introducing plant vascular tissues, or as a structured review of how environmental conditions affect tree function. Small groups can rotate through the station cards while recording their observations independently, followed by the wrap-up to consolidate the relationships they identified.

By linking vascular transport to drought, pests, disease, fire, and freeze-thaw conditions, this Grade 6 tree science activity gives students a specific biological mechanism for explaining why environmental stress can influence tree health rather than treating those effects as isolated facts.