8 IS 3.3

Which of the following metals is a liquid at room temperature?

• Iron

• Mercury

• Nickel

• Copper

What is the percentage of copper in a U.S. dime?

• 25 percent

• 50 percent

• 75 percent

• 92 percent

Why are plastic or wooden handles used on many metal cooking utensils?

• To improve appearance

• To reduce cost

• To prevent heat transfer

• To increase weight

Tags

NGSS.MS-PS3-3

What happens when iron reacts with air?

• It forms water

• It forms rust

• It forms gold

• It forms mercury

Tags

NGSS.MS-PS1-2

Which element is used to make laser light for surgery and cutting metals?

• Tin (Sn)

• Lead (Pb)

• Aluminum (Al)

• Neodymium (Nd)

Tags

NGSS.HS-PS4-5

Which group of elements includes both metals and non-metals?

• Group 1

• Group 13

• Group 17

• Group 18

How is plutonium (Pu) synthesized?

• By heating uranium-238

• By bombarding nuclei of uranium-238 with neutrons

• By mixing uranium-238 with water

• By cooling uranium-238

Tags

NGSS.HS-PS1-8

Which element in Period 4 is the least reactive?

• Potassium

• Calcium

• Copper

• Iron

What percentage of aluminum supply in the U.S. came from recycling?

• 43%

• 32.3%

• 24.5%

• 48%

What is the term for metals that can resist chemical reactions?

• Reactive

• Corrosive

• Stable

• Conductive