Polymer Strings Lab (Making Long Polymer Strands with Sodium Alginate and Calcium Chloride)

Description

Your Polymer Strings Lab activity sheet is ready — 5 pages in teal, with: Title, subtitle, Name/Date/Class line Overview explaining what a polymer is and what students will make Key Words section defining polymer, solution, chemical reaction, sodium alginate, and calcium chloride Materials (matching your list: sodium alginate, calcium chloride, water, beakers, pipettes, stirring sticks, measuring cups/graduated cylinders) Safety First (goggles, no tasting, careful with glass) 4 Pre-Lab questions — including a hypothesis prompt 11-step numbered procedure walking through preparing both solutions, adding sodium alginate to the calcium chloride bath, and lifting the strands Observations table for each stage of the reaction, plus a large drawing box 5 Post-Lab questions focused on evidence of chemical reaction and connecting polymers to everyday life Extension prompt for designing a follow-up experiment Reflection with 5 sentence-completion prompts