P.3.2

Why is copper often used to line the bottom of cookware?

• Copper cools quickly.

• Copper is inexpensive.

• Copper is a good insulator.

• Copper is a good conductor.

Tags

NGSS.MS-PS3-3

Which best explains why food is heated in metal pans?

• The metal will melt and the food will burn.

• The metal insulates the food from the heat.

• The metal reduces the heat until the food freezes.

• The metal will heat well so the food will cook evenly.

Tags

NGSS.MS-PS3-3

An engineer can choose from four different materials to make a heat-resistant handle for a stirring spoon. Which material is LEAST likely to get hot when the spoon is placed in boiling water?

• Ceramic

• Wood

• Glass

• Iron

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which best explains why stainless steel is a good choice as a material to

use when making pots and pans?

• Stainless steel is a good insulator.

• Stainless steel is a poor conductor of heat.

• Stainless steel is a good conductor of heat

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A metal wire is used in a light bulb to conduct heat until it glows. Which
best explains why metal is used?

• Metal heats up quickly.

• Metal conducts sunlight.

• Metal cools down slowly.

Tags

NGSS.MS-PS3-4

Joann fries an egg each morning in a metal frying pan with a rubber-coated handle. Which best explains why the handle of the frying pan is coated with rubber?

• Rubber makes the pan lighter.

• Rubber makes the pan prettier.

• Rubber is cheap to manufacture.

• Rubber is a poor conductor of heat.

Tags

NGSS.MS-PS3-3

Which best explains why the handles of many cooking pans are made of plastic?

• Plastic melts easily.

• Plastic freezes easily.

• Plastic is a poor conductor of heat.

• Plastic is a good conductor of heat.

Tags

NGSS.MS-PS1-4

Which best explains why a blacksmith must heat iron before shaping it?

• Heating iron makes it softer.

• Heating iron makes it harder.

• Heating iron changes its color.

• Heating iron changes its texture.

Tags

NGSS.MS-PS1-4

Sue is building a bike with a metal frame in a warm, sunny area. Which material would be best for Sue to use for the grips on the handlebars so that her hands do not get too hot?

• silver metal, because silver reflects heat, and metal conducts heat

• black metal, because black absorbs heat from the sun, and metal does not conduct heat

• white rubber, because white reflects heat, and the rubber does not heat up quickly

• black rubber, because black reflects heat from the sun, and rubber does not conduct heat

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Plastic does not conduct heat like many metals. Which product made from plastic best takes advantage of this characteristic?

• table

• a cooler

• bucket

• hairbrush

Tags

NGSS.MS-PS3-3