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Name: _______________________________ _ Pd: _____ Multiple Choice Redo : Find the correct answers. Write 2- 3 sentences for each problem to explain why the right answer is correct. Write these explanations on the back of this worksheet. Each correct answer --- 1 point
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Name: _______________________________ _ Pd: _____ • Multiple Choice Redo: Find the correct answers. Write 2- 3 sentences for each problem to explain why the right answer is correct. Write these explanations on the back of this worksheet. • Each correct answer --- 1 point • Each explanation --- up to 2 points • This assignment is worth: 12 points ____/12 • 1. Preparing a meal involves both physical and chemical changes. Which involves a chemical change? • A. Boiling water • B. Making ice cubes • C. Slicing a carrot • Toasting bread • 2. Which phrase describes an endothermic reaction? • A. There is a net release of energy. • B. The products are lower in energy than the reactants. • C. The products are higher in energy than the reactants. • The products are more stable than the reactants. • 3. Which description is a chemical property? • A. Burns in air • B. Has a blue color • C. Melts at room temperature • D. Is 10 cm long • 4. Which of the following is NOT an exothermic reaction? • A. Burning a piece of paper • An “instant Cold Pack” • Using a laser pointer • D. Using a glow stick that produces cold light • Name: _______________________________ _ Pd: _____ • Multiple Choice Redo: Find the correct answers. Write 2- 3 sentences for each problem to explain why the right answer is correct. Write these explanations on the back of this worksheet. • Each correct answer --- 1 point • Each explanation --- up to 2 points • This assignment is worth: 12 points ____/12 • 1. Preparing a meal involves both physical and chemical changes. Which involves a chemical change? • A. Boiling water • B. Making ice cubes • C. Slicing a carrot • Toasting bread • 2. Which phrase describes an endothermic reaction? • A. There is a net release of energy. • B. The products are lower in energy than the reactants. • C. The products are higher in energy than the reactants. • The products are more stable than the reactants. • 3. Which description is a chemical property? • A. Burns in air • B. Has a blue color • C. Melts at room temperature • D. Is 10 cm long • 4. Which of the following is NOT an exothermic reaction? • A. Burning a piece of paper • An “instant Cold Pack” • Using a laser pointer • D. Using a glow stick that produces cold light
