6th Test 6

The hardest known mineral; found in "pipes" is

• copper

• diamond

• amethyst

• precious stones

Small deposits of igneous and metamorphic crystals are

• precious stones

• gemstones

• fossils

• amethyst

Any hollow space in the earth's crust that has formed naturally and is large enough for a person to enter

• ore

• iron

• cave

• diamond

Any rock containing a metal together with impurities

• ore

• copper

• iron

• amethyst

Tags

NGSS.MS-ESS3-1

The rarest, most durable and beautiful gems

• gemstones

• diamond

• precious stones

• amethyst

The most commonly used practical metal; used for thousands of years to make tools

• ore

• iron

• copper

A metal that is a good conductor of electricity; two of its alloys are brass and bronze

• diamond

• iron

• copper

• ore

Any trace of a plant or animal left in a rock

• fossil

• fossil fuel

• iron

• ore

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

NGSS.MS-LS4-2

The area surrounding a magnet in which the force of the magnet affects other objects is called a(n) ____.

Tags

NGSS.MS-PS2-5

The ends of a magnet are called ___.