Chemical and physical changes are two fundamental ways that matter can be altered in our world. , like cutting paper or melting ice, don't create new substances; they just change the form or of the original material. On the other hand, , such as rusting iron or burning wood, result in the formation of new substances with different . These changes often involve transfer and can be identified by like color changes, gas production, or temperature shifts. Understanding the difference between these types of changes is crucial in science, as it helps explain many everyday phenomena and forms the basis for more advanced chemistry concepts.

Question

A. energy
B. signs
C. properties
D. chemical changes
E. physical changes
F. appearance

Answer 1

Chemical and physical changes are two fundamental ways that matter can be altered in our world. E. physical changes, like cutting paper or melting ice, don't create new substances; they just change the form or F. appearance of the original material. On the other hand, D. chemical changes, such as rusting iron or burning wood, result in the formation of new substances with different C. properties. These changes often involve transfer A. energy and can be identified by B. signs like color changes, gas production, or temperature shifts. Understanding the difference between these types of changes is crucial in science, as it helps explain many everyday phenomena and forms the basis for more advanced chemistry concepts.