Physical and Chemical Changes States of Matter

Which of the following are a physical change?

• color

• cutting

• solubility

• flammability

• reactivity

Which of the following are physical changes? (2 answers)

• melting

• freezing point

• density

• burning

• malleability (the ability to be hammered into thin sheets)

Tags

NGSS.MS-PS1-4

Does the picture represent the particles of a solid, liquid or gas?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

What is it called when a gas changes to a liquid?

• sublimation

• evaporation

• condensation

• freezing

Tags

NGSS.MS-PS1-4

An ice cube is melting in a glass on a hot summer day. What is happening to the particle movement of the ice?

• The particles speed up

• The particles slow down

• The particles stop moving

• The particles stay the same

Tags

NGSS.MS-PS1-4

The density of an object is .8 g/mL and the freezing point is 3 degrees C. Are these physical or chemical properties?

• physical

• chemical

• both

• neither

When salt dissolves in water (solubility), has a physical change or chemical change occured?

• physical

• chemical

Baking a cake is what kind of change?

• neither physical nor chemical

• physical

• chemical

• both physical and chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Using sandpaper to sand a wooden beam

• neither physical nor chemical change

• physical change

• chemical change

• both physical and chemical changes

A few minutes after an experiment, a white solid (precipitate) forms at the bottom of the beaker. Is this a physical or chemical change?

• neither

• physical

• chemical

• both

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5