A characteristic of a substance that can be observed when substances interact with each other and change is a __________

• Chemical Property
• Physical Property

A characteristic of a substance that can be observed without changing the composition of a substance is a __________

• Chemical Property
• Physical Property

A change to a substance where there is no change to the composition of the substance is a __________.

• Physical Change
• Chemical Change

A change to composition which creates a new substance is a __________

• Physical Change
• Chemical Change

Dissolving cocoa powder into milk to make chocolate milk is an example of a __________ change.

• chemical
• physical

Burning newspaper to help start a fire in your fireplace is an example of a __________ change.

• chemical
• physical

Plants produce oxygen when they photosynthesize

• chemical
• physical

What description most accurately describes a chemical change?

• a change in appearance, mass and volume
• a change at the molecular level
• a change in density
• a change in observation

TRUE OR FALSE: State, texture, temperature and density are all examples of chemical properties.

• TRUE

• FALSE

Select all options of a physical change:

• solid to liquid

• the formation of ash

• a change in nature

• liquid to gas