The document explains the distinction between physical and chemical changes, highlighting that physical changes do not alter the substance's properties, while chemical changes result in new substances. Examples of physical changes include dissolving sugar in water and breaking glass, while examples of chemical changes include rusting nails and vinegar reacting with baking soda. It also prompts readers to classify images related to these changes and to consider examples from their future careers.

1. By Prof. Liwayway Memije-Cruz
Changesin Matter

5. Physical Changes arethosein which the
identifying propertiesof substances
remain unchanged.

8. …then click the placeholders to add your own pictures and captions.
Chemical Changes are those in which new
substanceswith new propertiesareformed.

9. 1. Sugardissolves in warm water
2. A nail rusts.
3. A glass breaks.
4. A piece of paperburns.
5. Iron and sulfurmix and form a partially magnetic
black and yellow mixture.
6. Iron and sulfurare heated and form a non-magnetic
shiny grey substance.
7. Dry Ice (solid carbon dioxide -- CO2) is sublimed at
room temperature.
8. Vinegarreacts when mixed with baking soda.
9. Waterboils at 100 degrees Celsius
10. Zinc when immersed in Hydrochloric Acid produces
hydrogen gas.
Physical or Chemical Change?

10. Give at least 5 physical changes and 5 chemical changes you would probably
encounter in your chosen career in the future.

11. Classify thefollowing imagesin the
next pagesasto PHYSICAL
CHANGE OR CHEMICAL
CHANGE.