1. Physical or Chemical?

2. Physical or Chemical? Physical Chemical huevos de craqueo
mashmallows asar

3. Physical or Chemical? Physical Chemical cristales rotos
encender un fósforo

4. digestión de los alimentos
Physical or Chemical?
Chemical
Physical
digestión de los alimentos
cortar el césped

5. Physical or Chemical? Chemical Chemical fuegos artificiales
hornear un pastel

6. Physical or Chemical? Physical Chemical fusión del hielo
clavos oxidados

7. Physical or Chemical?
Chemical
Chemical

8. WHY?
Frying an egg= it denatures the protein in the egg – the reaction is NOT reversible
Toast= the bread turns brown & the texture changes, and odor is produced

9. Physical or Chemical?
Physical
Physical
agua hirviendo
limonada fresca

10. WHY?
Fresh lemonade= it would be a physical change because the sugars are still comprised in the same way just now its extracted liquids.

11. Physical or Chemical? PHYSICAL CHANGE CHEMICAL CHANGE
Change in which the appearance of a substance changes, but chemically the substance is the same
Ex: Phase changes in water
Melting  BoilingEvaporating
Atoms DO NOT rearrange
Only physical properties change
When matter is changed from one type of matter into another type, that has different properties.
Atoms ARE rearranged
BOTH physical and chemical properties are changed