Describing Physical and Chemical Changes

Which of the following describes a chemical change?

• melting butter

• milk spoiling

• cutting paper

• water evaporating

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An ice cream cone melting on a counter top is an example of

• a chemical change

• a physical change

• no change

• both a physical and a chemical change

Tags

NGSS.MS-PS1-4

Which statement is true?

• Chemical changes create a new substance

• Chemical changes can be reversed

• Physical changes create a new substance

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a physical change?

• digesting food

• a nail rusting

• breaking a pencil

• frying an egg

A combination of two or more substances where each keeps its own properties and can be easily separated

• Change

• Manipulation

• Mixture

• Substances

Particular types of matter with specific properties

• substances

• manipulation

• change

• mixtures

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

This can be released during a chemical change

• energy

• manipulation

• mixture

• change

Tags

NGSS.MS-PS1-2

The chemical properties of paper are changed when which of the following is done to it?

• burning

• folding

• tearing

• cutting

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which of the following describes using a physical change to separate a mixture?

• Heating water to be able to dissolve more sugar in it

• Adding vinegar to baking soda to produce bubbles from a gas

• Melting a chocolate bar with almonds to remove the almonds

• Burning wood to produce thermal energy to cook food.

In which of the following actions does a physical change occur to separate a mixture?

• Stirring chocolate syrup into milk

• Evaporating water from salt water

• Freezing a solution of water and sugar

• Adding sand to a beaker of water