science chapter 4 materials: metals and non-METALS CLASS 8

Hydrogen

• Metal
• Non-metal

Which of these is a property of metals?

• It's malleable
• It can't conduct electricity
• They are used in food
• It's very brittle

What is just so typical of NON-metals?

• They don't know what colours go well together.

• Malleable.

• Form acidic oxides.

• Good conductors of electricity.

• High melting points.

A metal high in the reactivity series.....

• Forms unstable compounds.

• Can be obtained by the reduction of the ore with the carbon.

• Readily gains electrons.

• Burns to form basic oxides.

• Reacts readily with cold water to form Hydrogen.

Which of the following is true of all metals?

• They react with acids to form Hydrogen

• They are denser than water

• They conduct electricity

• They're silver in colour.

what temperature does mercury melt at ?

• 1200 Celsius

• 120 degrees Fahrenheit

• 12 degrees Celsius

• room temperature

Tags

NGSS.MS-PS1-4

What is a conductor?

• Heat and electricity move through them easily
• able to be drawn into a wire
• able to be hammered into different shapes
• shiny

Tags

NGSS.MS-PS2-3

Brittle

• Metal
• Nonmetal

Good conductor of heat

• Metal
• Nonmetal

Metals can be beaten into thin sheets.Which property does it show?

• ductility

• lustre

• malleabilty

• conductivity