Science Properties Test and Vocab Review

A 100-gram sample of liquid mercury has the following physical properties:

a melting point of –38.9°C

a boiling point of 357.3°C

a density of 13.56 g/cm³

What would happen to the liquid mercury’s properties if we doubled the sample?

• All three properties would increase.

• All three properties would remain the same.

• Melting and boiling points would increase, while density would remain the same.

• Density would increase, while melting and boiling points would remain the same.

A scientist has a 50-gram sample of solid silver and a 100-gram sample of solid silver. Which statement correctly compares these two samples?

• The samples have the same mass, volume, and density.

• The samples have different masses, volumes, and densities.

• The samples have different masses, but the same volume and density.

• The samples have different masses and volumes, but the same density.

A student pours some water into a beaker, then pours some pure sugar into the water, and stirs the mixture. The student notices that some of the sugar has dissolved, but some of the sugar remains as a solid at the bottom of the beaker. What could the student do to to get the remaining sugar to dissolve?

• pour the solution into a smaller beaker and stir

• add more water to the beaker and stir

• add more sugar to the beaker and stir

• decrease the water temperatureand stir

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The boiling point of 4 cups of water is 212°F. What is the boiling point of 8 cups of water?

• 32 degrees F

• 212 degrees F

• 424 degrees F

• 848 degrees F

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which property remains constant in different samples of the same materials?

• density

• mass

• volume

• shape

Mya is trying to identify two mystery substances. Which properties will best help her identify the substances?

• boiling point and density

• mass and temperature

• volume and weight

• weight and shape

A student places 10 grams of wax in a beaker and 10 grams of butter in a second beaker. The student heats each beaker evenly and observes that the butter is the first to melt completely. Why did the butter melt first?

• because it is lighter than the wax

• because it is heavier than the wax

• because it has a lower melting point than the wax

• because it has a higher melting point than the wax

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which term describes the amount of solute that can be dissolved in a specific volume of solvent?

• compound

• mass

• solubility

• density

What is the best way to determine if a sample is pure gold?

• compare the color of the sample with a sample of pure gold

• compare the luster of the sample with a sample of pure gold

• compare the volume of the sample with a sample of pure gold

• compare the density of the sample with a sample of pure gold

Which property of a substance most likely affects whether it will float or sink?

• color

• density

• odor

• texture