Cover comparison
Made-up practice story.
In a made-up plan, two matching trays start at 40 mL in the same room and are reviewed after the same 20 minutes. One has a cover. Name one change and three things to match.
Make something useful
Use a small caption, arrow model, table or spoken explanation for this exact question. Keep the supplied story beside you.
Grown-up help
Worked practice: Change cover status; match starting volume, trays/place and duration. Record remaining mL by the taught scale procedure. A planned comparison is not an actual result.
Complete Day 36 plan. This is ordinary practice, not a held assessment source.