Physical or Chemical?

Physical or Chemical?

Physical Chemical

huevos de craqueo mashmallows asar

Physical or Chemical?

Physical Chemical

cristales rotos encender un fósforo

Physical or Chemical?

Chemical Physical

digestión de los alimentoscortar el césped

Physical or Chemical?

Chemical Chemical

fuegos artificialeshornear un pastel

Physical or Chemical?

Physical Chemical

fusión del hielo clavos oxidados

Physical or Chemical?

Chemical Chemical

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

Physical or Chemical?

Physical Physical

agua hirviendo limonada fresca

WHY?

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

PHYSICAL CHANGE• Change in which the

appearance of a substance changes, but chemically the substance is the same

– Ex: Phase changes in water• Melting BoilingEvaporating

– 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

Physical or Chemical?

CHEMICAL CHANGE