Physical and Chemical Change/Properties

A student mixes yellow powder with water. Which observation would prove a CHEMICAL change occurred?

• The powder DISSOLVED in the water

• The water turned the COLOR yellow

• The bag's TEMPERATURE changed

• The STATE OF MATTER changed

Tags

NGSS.MS-PS1-2

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

• Physical change: state of matter

• Chemical change: production of a solid

• Physical change: freezing

• Chemical change: rust

Tags

NGSS.MS-PS1-2

What kind of change occurs if matter changes in amount, size, or shape?

• substance change

• chemical change

• physical change

• elemental change

Physical changes can be brought about by

• Cutting
• Bending
• Dissolving
• All of the following are correct.

All of the following processes cause physical changes in matter except

• Burning
• Melting
• Freezing
• Boiling

Physical properties are

• properties that can be observed without changing the identity of the substance
• properties that describe how a substance changes into a completely different substance

What is a chemical change?

• Forming a new substance

• When two or more substances combine to make a greater one

• When two or more substances combine to make a new chemical substance

• Combing substances

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is not a chemical property? 

• rusting 
• boiling 
• rotting 
• burning 

Tags

NGSS.MS-PS1-2

Copper conducts electricity

• Physical Property

• Chemical Property

Tags

NGSS.MS-PS2-3

Baking soda reacts with vinegar

• Physical Property

• Chemical Property

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5