Y7 Topic 6 revision

Which two properties describe metals?

• good conductors of electricity, brittle

• dull, malleable

• ductile, good conductors of heat

• might be a gas at room temperature, might be magnetic

Which two elements are examples of metals?

• gold, iron

• copper, chlorine

• hydrogen, oxygen

• silver, helium

Check all true statements.

• all metals conduct electricity

• all metals are magnetic

• all non-metals are gases at room temperature

• sulfur is a non-metal

Check all true statements.

• Ceramics are hard and brittle

• Glass is flexible and can be colored

• Glass is waterproof and does not react with food and drink

• Glass can be transparent or translucent

Check all the non-metals.

• Hydrogen

• Oxygen

• Helium

• Suflur

Which word describes a metal's ability to be drawn into a wire?

• transparent

• translucent

• malleable

• ductile

Which word describes an object that lets light through, but the image is not clear?

• Transparent

• Translucent

• Opaque

• Sonorous

Which material could be used to make an electrical wire, and which property is important for this?

• Copper; it conducts heat very well

• Gold; it conducts electricity very well

• iron; it is very strong

• titanium; it has a very high melting point

Which material would be appropriate to make a bridge, and which property is important for this?

• Sulfur; it is brittle

• Helium; it is light weight

• Steel; it is strong

• Copper; it conducts electricity very well

Which material would be appropriate to make a window, and which property is important for this?

• Plastic; it is light weight

• Plastic; it can be made in any shape and can be opaque

• Glass; it is transparent

• Glass; it does not react with food or drink