Exploring Physical and Chemical Changes in Matter

What is matter?

• Only liquids and gases

• Anything that occupies space and has mass

• Any gases that are visible

• Only elements and compounds

Which property is common to all metals?

• Insolubility

• Brittleness

• Malleability

• Transparency

What does conductivity refer to in terms of physical properties?

• Ability to attract magnets

• Ability to expand when heated

• Ability to dissolve in water

• Ability to conduct electricity

What is a chemical property?

• A property that only appears in liquid state

• A property that describes matter's ability to react with other substances

• A property that can be observed without changing the substance

• A property related to color changes only

What indicates a chemical change?

• Separation into components

• Change in the amount of matter

• Formation of a new substance

• Change in state of matter

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is an example of a physical change?

• Mixing acid and base

• Burning of wood

• Melting of ice

• Rusting of iron

What is a mixture?

• A solid solution only

• A chemical combination of two substances

• A physical blend of two or more substances

• A new substance formed by heating

What happens during a chemical reaction?

• Physical state changes

• Atoms rearrange to form new substances

• Volume of matter increases

• Matter returns to original form

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is a sign of a chemical change?

• Dissolving sugar in water

• Formation of gas bubbles

• Freezing of water

• Separation of sand and water

Tags

NGSS.MS-PS1-2

What does solubility measure?

• The malleability of a substance

• The density of a substance

• How much a substance can dissolve in another

• How fast a substance burns