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Grades 3–8 Academic Language Studio
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Science City · Case 01Key Use: ExplainELD-SC~20 min

Silt in the River Garden

The floating lettuce beds are wilting at noon. Trace the cause before you replace the wrong valve. The path branches. What you ask, and what you do with the evidence, changes the ending.

Student researcher Amina Yusuf joins Dr. Priya Raman and engineer Mateo Cruz at Canal Basin Three. The lettuce leaves in the river garden are drooping even though the water pump is running. Amina must listen to the sensor readout, inspect the intake filter log, and explain what the mesh filter can and cannot fix.

Science City

Communicative Objective

Students explain a cause-and-effect chain in an environmental system and state the physical limit of an engineering solution.

Bench: Cause & Effect Matrix

Story Cast in This Case

Amina Yusuf

Amina Yusuf

Student researcher

Dr. Priya Raman

Dr. Priya Raman

Scientist

MC

Mateo Cruz

Engineer

Target Academic Vocabulary (6 Terms)

sediment: fine sand or clay carried by moving water
filter: a device with small openings that traps solid particles
dissolved: mixed completely into a liquid so it cannot be seen as pieces
intake: the opening where water enters a pipe or pump
oxygen: a gas in water and air that plant roots need to stay healthy
cause: the reason something happens in a system
Session Setup

Choose Grade Band & Support Pathway

Grade band

Recommended for grades 6-8. The other band has its own text.

Support pathway
Adjust one domain independently

Support pathways are classroom choices. They are not WIDA scores.