Physical and Chemical Changes

A ___________ change alters the size, shape, or composition of a substance.

• Physical
• Chemical
• Endothermic
• Exothermic

A ____________ change makes two or more new substances and cannot be changed back.

• Physical
• Chemical
• Endothermic
• Exothermic

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

_______________ is an example of a physical change.

• Burning wood
• Rotting apple
• Cutting paper
• Instant ice packs

________________ is an example of a chemical change.

• Melting ice
• Rotting apple
• Folding clothes
• Bending metal

Forming a precipitate is a chemical change when two liquids become a ____________.

• Gas
• A new liquid
• Solid
• Ice

_____________ reaction absorbs heat causing surroundings to get cold.

• Physical
• Endothermic
• Exothermic
• None of the above

_____________ reaction releases heat causing surrounding to get hot.

• Exothermic
• Endothermic
• Physical
• None of the above

Formation of a precipitate, generation of gas, color change, endothermic and exothermic reactions are all types of _________________________.

• Physical Changes
• Chemical changes/reactions
• States of Matter

__________________ is an example of production of a gas during a chemical reaction.

• Salt disolving into water.
• Mixing kool aid and water
• Blowing bubbles into water
• Baking soda and vinegar

Tags

NGSS.MS-PS1-2