1. Which of the following is an example of a physical change?A. Burning woodB. Rusting ironC. Melting ice creamD. Baking a cake2. What happens when you tear a piece of paper into small pieces?A. A chemical change occurs.B. The paper undergoes evaporation.C. The paper undergoes a physical change.D. The paper undergoes sublimation.3. Which of the following is an example of a chemical change?A. Cutting vegetablesB. Melting butterC. Mixing baking soda and vinegarD. Freezing water4. Sarah was cooking scrambled eggs for breakfast. She cracked some eggs into a hot frying pan and stirred them until they were cooked. What type of change did the eggs undergo during cooking?A. Physical changeB. Chemical changeC. No change occurredD. Both physical and chemical changes5. Timmy mixed some sugar into his glass of water until it dissolved completely. What type of change occurred when the sugar dissolved in the water?A. Physical changeB. Chemical changeC. No change occurredD. Both physical and chemical changes6. Which of the following is an example of a physical change involving a change of state?A. Rust forming on an iron nailB. Paper burning and turning into ashesC. Ice melting into waterD. Milk spoiling and curdling7. Maria was baking cookies in the oven. As the cookies were baked, they turned golden brown and became firm. What type of change occurred to the cookies during baking?A. Physical changeC. No change occurredB. Chemical changeD. Both physical and chemical changes8. Alex lit a candle and observed as the wax melted and formed a pool of liquid around the wick. What type of change occurred to the wax during burning?A. Physical changeB. Chemical changeC. No change occurredD. Both physical and chemical changes9. Jason was cleaning his bicycle after a ride. He noticed that the metal parts were starting to rust. Why is it important for Jason to prevent rust from forming on his bicycle?A. To make his bicycle look shiny and newB. To avoid damaging the metal parts of his bicycleC. To impress his friends with his well-maintained bicycleD. To win a prize for the best-looking bicycle10. Anna was planning to cook dinner for her family. She needed to know whether cooking chicken in the oven would result in a physical or chemical change. Why is this important for Anna to consider?A. So she can impress her family with her cooking skills B. So she can choose the best cooking method for the chickenC. So she can avoid making a mess in the kitchenD. So she can win a cooking competition
Answer (1)
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