Chemical Change Definition
A chemical change combines substances into new materials. For example, mixing vinegar and baking soda creates bubbles, indicating a new substance.
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Chemical vs. Physical Changes
Fun Facts
- If you notice bubbles being formed, or a change in color or temperature, there is a good chance a chemical change has taken place.
- Since chemical changes like burning wood make new substances, most of them cannot easily be undone.
- A chemical change happens during digestion.
Why Do We Need To Know About Chemical Change
Learning about chemical changes helps us understand how new things are made and why this is important in many jobs. For example, in making medicines, putting chemicals together in new ways is using chemical changes.
This idea is also key in making fireworks, stopping things from rusting, and in cooking to make food. Knowing about chemical changes is important for people in these jobs to come up with new ideas and solve problems.
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