This video tutorial reviews physical and chemical properties, explaining the differences between physical and chemical changes. It covers various physical properties like viscosity, conductivity, malleability, hardness, melting and boiling points, and density. The video also introduces chemical properties such as flammability and reactivity, and discusses evidence of chemical changes, including color change, gas production, and precipitate formation. Examples are provided to help distinguish between physical and chemical changes.

Which of the following is an example of a material with high viscosity?

• Water

• Honey

• Juice

• Milk

What property describes a material's ability to allow heat or electricity to flow?

• Viscosity

• Hardness

• Conductivity

• Malleability

Which physical property is tested by scratching one material with another?

• Density

• Malleability

• Hardness

• Conductivity

What is the term for a material's ability to burn in the presence of oxygen?

• Reactivity

• Flammability

• Conductivity

• Malleability

Which of the following is NOT an indicator of a chemical change?

• Change in color

• Production of gas

• Formation of a precipitate

• Change in shape

Tags

NGSS.MS-PS1-2

When bread rises due to the production of bubbles, what type of change is occurring?

• No change

• Chemical change

• Physical change

• Both physical and chemical change

Tags

NGSS.MS-PS1-2

Is shattering glass an example of a physical or chemical change?

• Neither

• Physical change

• Chemical change

• Both

What type of change occurs when wax melts from a solid to a liquid?

• Neither

• Both

• Chemical change

• Physical change

Tags

NGSS.MS-PS1-4

When adding Alka-Seltzer to water, what type of change is indicated by the production of bubbles?

• Physical change

• Chemical change

• Both physical and chemical change

• No change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What physical property explains why oil floats on top of water in salad dressing?

• Density

• Malleability

• Conductivity

• Viscosity