Material Properties Vocabulary

Question 1

A science lab has three panels on its wall: a clear glass panel, a frosted glass panel, and a solid wooden panel. Which sentence correctly uses the words transparent, translucent, and opaque to describe these panels?

Accepted Answer

The clear glass panel is transparent, the frosted glass panel is translucent, and the wooden panel is opaque.

Answer

The clear glass panel is opaque, the frosted glass panel is translucent, and the wooden panel is transparent.

Answer

The clear glass panel is translucent, the frosted glass panel is transparent, and the wooden panel is opaque.

Answer

The clear glass panel is transparent, the frosted glass panel is opaque, and the wooden panel is translucent.

Question 2

Alex is building a simple circuit to power a tiny buzzer. He has four items: a piece of copper wire, a wooden dowel, a sheet of aluminum foil, and a piece of plastic wrap. Which statement correctly identifies each item as an electrical conductor or insulator and gives the right reason?

Accepted Answer

Copper wire – conductor because it allows electricity to flow; wooden dowel – insulator because it blocks electricity; aluminum foil – conductor because it is a metal that lets electricity flow; plastic wrap – insulator because it does not let electricity flow.

Answer

Copper wire – conductor because it is shiny; wooden dowel – conductor because wood is a natural material; aluminum foil – insulator because it is thin; plastic wrap – insulator because it is clear.

Answer

Copper wire – conductor because it allows electricity to flow; wooden dowel – conductor because it is solid; aluminum foil – conductor because it is metal; plastic wrap – conductor because it is thin.

Answer

Copper wire – insulator because it is thin; wooden dowel – insulator because it blocks electricity; aluminum foil – conductor because it is a metal; plastic wrap – conductor because it is flexible.

Question 3

Jaden is building a simple circuit to light a small LED. He needs three items and wants to know which can carry electricity and which cannot. He has: 1) a strip of aluminum foil, 2) a dry kitchen sponge, 3) a glass jar filled with water that has a pinch of table salt dissolved in it. Which statement correctly classifies each material as a conductor or an insulator and gives the right reason?

Accepted Answer

The aluminum foil is a conductor because metals let electric charge move freely; the dry sponge is an insulator because it has no water to let charge flow; the salty water is a conductor because the dissolved salt creates ions that can carry charge.

Answer

The aluminum foil is a conductor because it looks shiny; the dry sponge is a conductor because its pores let electricity pass; the salty water is an insulator because liquids block electricity.

Answer

The aluminum foil is a conductor because metals are good conductors; the dry sponge is an insulator because it is dry; the salty water is an insulator because water is not a metal.

Answer

The aluminum foil is an insulator because thin metal sheets block electricity; the dry sponge is an insulator because it is dry; the salty water is a conductor because all water conducts electricity.

Try three questions

A science lab has three panels on its wall: a clear glass panel, a frosted glass panel, and a solid wooden panel. Which sentence correctly uses the words transparent, translucent, and opaque to describe these panels?

Alex is building a simple circuit to power a tiny buzzer. He has four items: a piece of copper wire, a wooden dowel, a sheet of aluminum foil, and a piece of plastic wrap. Which statement correctly identifies each item as an electrical conductor or insulator and gives the right reason?

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