9TH GRDAE-JSO-IS MATTER PURE?-INTERACTIVE QUIZ

📋 Instructions 20 single-choice questions — pick ONE option (A/B/C/D) for each. Every question has a picture row — emoji, a table or a lab diagram. Read it carefully! Use Mark for Review ⭐ to flag a question you want to revisit. The timer auto-submits at 0:00. Warnings at 5 min, 1 min and 30 sec. No negative marking — attempt every question! ⚗️