167
Lesson 167 of 500 · Extra Passages
⭐ 30 XPChemical vs Physical Changes Part 3
📖Story Brief #167
Chemical changes and physical changes are two different ways that matter can change.
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Chemical changes and physical changes are two different ways that matter can change. A physical change is when the appearance of a substance changes, but its chemical identity stays the same. For example, when ice melts into water, it changes shape and state, but it is still H2O. On the other hand, a chemical change happens when a substance transforms into something new with different properties. An example of a chemical change is when iron rusts; it reacts with oxygen in the air to form rust, which is not the same as iron. Understanding these changes helps us know how materials interact in the world around us.
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Question 1
1 of 2What happens during a physical change?
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