CUA Unit 2 Quiz 6th Grade

Some students conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table below.

• Sample 2

• Sample 3

• Sample 4

• Sample 1

Which statement does NOT correctly compare silicon with another element?

• Silicon conducts electricity as well as copper does.

• Silicon is a better conductor of electricity than sulfur.

• Silicon is less malleable than silver.

• Silicon is a solid at room temperature, but argon is a gas.

Which material best conducts heat and electricity?

• Plastic

• Rubber

• Wood

• Metal

Tags

NGSS.MS-PS3-3

Which statement concerning metals is correct?

• Metals form a rigid structure.

• Metals have a low melting point.

• Metals conduct electricity.

• Metals are soluble.

Which physical property is important to have in a material used in cookware?

• good conductor of heat

• poor conductor of heat

• high flexibility

• low flexibility

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A student is examining an object in science class. It is solid, does not conduct, malleable but not ductile and is a shiny silver color.

The sample is most likely a ---

• metal

• semi-conductor

• nonmetal

• metalloid

A student is examining an object in science class. It is a pale yellow, brittle solid, with no shine.

The sample is most likely a --

• metalloid

• nonmetal

• semi-conductor

• metal

A balance and a graduated cylinder are used to determine the density of a mineral sample.

The sample has a mass of 14.7 g and a volume of 2.2 cm3. What is the density of the mineral sample.

• 32 g/cm3

• 6.7 g/cm3

• 0.15 g/cm3

• 13 g/cm3

A manufacturer selected a metal to use in producing a lightweight button for clothing. A metal that has a density of 2.71 g/cm3 was selected.

Which of the metals was selected?

• Metal 4

• Metal 1

• Metal 2

• Metal 3

Tags

NGSS.MS-PS1-2

For an investigation a student records data about for unknown substances. The student then calculates the densities of the unknown substances and compares them with the table of densities of known substances shown below.

Which unknown substance is most likely carbon?

• Substance 2

• Substance 1

• Substance 4

• Substance 3

• 

Tags

NGSS.MS-PS1-2