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Cut out the cards carefully. Arrange in a pile on the table. Look at each description and decide if it is a chemical reaction or a physical change. Sort the cards into two piles. Tell your teacher how many you have in each pile
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Cut out the cards carefully. Arrange in a pile on the table. Look at each description and decide if it is a chemical reaction or a physical change. Sort the cards into two piles. Tell your teacher how many you have in each pile