Chemical and Physical Changes

Front

Which of the following options provides evidence of a CHEMICAL change?

• Wood is burned releasing ash and smoke
• Rocks separate when soil is sifted
• Water turns to ice when you put it in the freezer
• Salt dissolves in water

Back

Wood is burned releasing ash and smoke

Front

A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?

Back

Chemical change

Front

Which observations prove a chemical change has occurred?

Back

Unexpected color change and temperature change

Front

What occurs when mixing milk and vinegar?

Back

Chemical change: production of a solid

Front

What is a physical change?

Back

Changes the physical properties of an object, but does not create a new substance.

Front

What is a chemical change?

Back

Creates a new substance and cannot be undone.

Front

Is this an example of a physical or chemical change?

Back

Chemical

Front

Is this an example of a physical or chemical change?

Back

Chemical

Front

Is this an example of a physical or chemical change?

Back

Physical

Front

Is this an example of a physical or chemical change?

Back

Chemical