Physical and Chemical Changes

1. Evidence that a change has occurred may include which of the following? Evidence that a chemical change has occurred includes the formation of a new product. 2. Sort the following by physical or chemical changes. Physical melt freeze evaporate condensation break shatter state of matter tear rip Chemical endothermic exothermic bubbles gas production color change light production new substance burning cooking 3. Which of the following properties of a substance could change during a physical change? ability to rust reactivity with acids resistance to bending ability to burn in oxygen The following is a 2 part question.4A. The image shows the temperature of a liquid before and after a mystery substance was added during an experiment. There were no heating or cooling elements involved in the investigation. Which of the following statements is true? The experiment demonstrates a physical change. The experiment demonstrates a chemical change. The experiment demonstrates a phase change. The experiment demonstrates no change. 4B. Which of the following BEST supports the answer to Part A? The increase in temperature is evidence of the change. The decrease in temperature is evidence of the change. The mystery substance dissolved. The substance remained unchanged. 5. Based on the image above, what evidence indicates a chemical change? The liquid level is rising. The glass is moving. The tablets are producing a gas. The gas is becoming solid. 6. Jason and Maria have been tasked to create real-world examples of matter undergoing physical and chemical changes. Which of the following are examples of a chemical change? Choose ALL correct answers by clicking the appropriate boxes. There will be more than one answer. Valerie used a hot glue gun to melt a glue stick while working on a diorama for her science class. JB is trying to melt sugar to make dessert. He left the sugar on the stove to long and it began to turn black and give off a strong odor. Marhsall was camping and decided to chop wood to use for a fire. Brook constantly left her bicycle outside in the rain. One day she noticed her bicycle chain had rust on it. Alia was teaching her son how to speak German by watching novelas on tv. 7. Complete the following statements by moving the answers to the correct boxes. physical change occurs when a substance undergoes a change in appearance, such as dissolving. chemical change occurs when a new substance is formed, with one form of evidence being color change.