Middle School Physical Science Quiz
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MATTER AND ITS INTERACTIONS
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A cold pack has these criteria: Criterion 1: reach 00–5 ∘C5\,^{\circ}\mathrm{C} within 2 minutes. Criterion 2: stay below 10 ∘C10\,^{\circ}\mathrm{C} for at least 30 minutes. Test procedure: Measure temperature with a thermometer at regular times. Data: 0 min: 21 ∘C21\,^{\circ}\mathrm{C}; 1 min: 12 ∘C12\,^{\circ}\mathrm{C}; 2 min: 7 ∘C7\,^{\circ}\mathrm{C}; 5 min: 5 ∘C5\,^{\circ}\mathrm{C}; 10 min: 4 ∘C4\,^{\circ}\mathrm{C}; 20 min: 6 ∘C6\,^{\circ}\mathrm{C}; 30 min: 9 ∘C9\,^{\circ}\mathrm{C}; 40 min: 11 ∘C11\,^{\circ}\mathrm{C}. Which criterion did the cold pack fail to meet?
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