Physical Properties

Which of these properties could you best use to identify an unknown substance?

• Mass

• Volume

• Melting Point

You decide to make Kool-Aid, so you pour the flavor packet into a glass of water and stir it. You watch the powder dissolve into the water. What physical property are you observing?

• boiling point

• solubility

• melting point

What physical property is being observed at point B, and why?

• Boiling point, because the substance is turning from solid to liquid

• Melting point, because the substance is turning from liquid to gas

• Boiling point, because the substance is turning from liquid to gas

• Melting point, because the substance is turning from solid to liquid

Tags

NGSS.MS-PS1-4

The mass of a substance changes based on how much of the substance you have. Is mass INDEPENDENT or DEPENDENT on sample size?

• independent

• dependent

The temperature at which gold changes from a solid to a liquid is 1064.2 degrees C. What property is this describing?

• melting point

• boiling point

• solubility

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

You have two blocks of iron (a type of metal). One block fits in your hand, and another block is the size of a car. Which of these properties will be the same for both blocks of iron?

• Density

• Mass

• Volume

A physical property is...

• a property that can be measured without changing the substance

• a property that is measured by chemically changing the substance

You pour a spoonful of sugar into your tea, and stir. The sugar eventually dissolves. Which describes the relationship between the sugar and the tea?

• The sugar is the solvent, the tea is the solute

• The sugar is the solute, the tea is the solvent