Exploring the Properties of Matter Through Density

What is the main purpose of visiting the water treatment plant in the video?

• To learn about the history of water treatment

• To understand how materials are separated based on their properties

• To observe the wildlife around the plant

• To see how water is transported

Which of the following is NOT considered matter?

• A smartphone

• Electricity

• Air

• Water

What is a physical property?

• A characteristic that can be observed without changing the chemical makeup of a substance

• A characteristic that changes the chemical makeup of a substance

• A property that only applies to liquids

• A property that is only measurable with special instruments

Which of the following is an example of a physical property?

• Flammability

• Ability to rust

• Color

• Reactivity with acid

What does density measure?

• The temperature at which a substance boils

• The amount of mass per unit of volume

• The volume of an object

• The weight of an object

Why does ice float on water?

• Because it has a lower density than water

• Because it has a higher density than water

• Because it is a solid

• Because it is colder than water

What is the formula for density?

• Volume minus mass

• Mass times volume

• Mass divided by volume

• Volume divided by mass

What is an example of a crosscutting concept mentioned in the video?

• Energy transfer

• Cause and effect

• Molecular bonding

• Chemical reactions

Tags

NGSS.MS-LS2-3

What is the purpose of the lab activity involving pennies?

• To identify the metals in pennies by measuring their densities

• To measure the weight of different pennies

• To observe the color change in pennies

• To measure the temperature of water

Tags

NGSS.MS-PS1-1

What should you do before measuring the volume of a penny in the lab activity?

• Weigh the penny

• Dry off the penny

• Heat the penny

• Paint the penny