In this lab activity, students use brine shrimp as a proxy for krill to study how environmental factors impact behavioral responses of krill in the unique environment of Antarctica.
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Most items needed to teach this activity are found in typical classroom, but it will be necessary to order some supplies and brine shrimp in advance.
Background information for teachers is included. Additional background information for students provided by the educator might be helpful.
Instructions to students in both the lab activity and extended challenge might need additional clarification from educator, such as the purpose of lids for cups, diagram/photo of lab setups, labeling of containers, clear learning objectives, explanation of the term proxy, and why brine shrimp are a good substitute for krill.
This is a lab activity in which students use brine shrimp as a substitute for krill to investigate how changes in environmental conditions (light, water temperature, water movement/currents, and magnetism) affect brine shrimp behavior.
Gravity and magnetism are lumped together, perhaps implying that they have the same effect on shrimp/krill behavior.
Passed initial science review - expert science review pending.
Activity is a fun, hands-on investigation for students.
Well thought-out lab with explicit LTER connection. Uses common supplies and provides range of suggestions for alternative methods of delivery. Some background information, activity sheets, and follow-on inquiries provided.
The educator must provide assessments.
Educators can use materials list to acquire common lab materials.