Imprimir Froggy Jumps: Metals (technology - tecnologia - 1º e.s.o. - materials

1. Where do metals come from?

A

Earth’s crust with minerals

B

Earth's mantle with rocks and minerals

C

Minerals

2. What does ferrous metals contain?

A

Copper

B

Paper

C

Iron

3. You can recycle it:

A

To a clean point

B

Directly to the bin

C

To the floor

4. All metals are hard except:

A

Sodium and potassium

B

Iron and copper

C

Diamond and gold

5. ... and ... are the two best conductors of heat

A

Silver and iron

B

Silver and copper

C

Gold and copper

6. The first step of making metal is:

A

Crushing

B

Reclaim

C

Screening

7. Adistinguishing feature of non-ferrous metals is that they are:

A

Highly malleable

B

Poor conductors of heat

C

They come from Ore

8. Metals have ... and boiling points.

A

Low melting

B

A lot of pressure

C

High melting

9. ---: Metals can be drawn into wires.

A

Ductility

B

Crashing

C

Melting and Boiling Points

10. What is a disadvantage?

A

It lasts a long time

B

It can be corrode and oxide

C

It can be recycle