Giant Crystal Caves

Which word is an antonym for the word giant in paragraph 1?

• huge

• awkward

• tiny

• slim

In paragraph 2, a chamber is a –

• tunnel

• crystal

• cave

• room

Read the dictionary entry for the word sharp.

Which meaning best fits the way the word sharp is used in paragraph 2?

• Definition 1

• Definition 2

• Definition 3

• Definition 4

What is paragraph 2 mainly about?

• the cave of sails

• different areas of the caves

• the queen’s eye

• crystals that look like frost and snow

What can the reader conclude from paragraph 4?

• The biggest crystals formed in the last five years.

• The biggest crystals break easily.

• The biggest crystals are too large to move.

• The biggest crystals are heating the caves.

According to the selection, the main problem with working inside the giant crystal caves is that -

• the crystals are sharp

• the caves are hot

• the air is wet

• the crystals are hot

Look at the diagram below.

Which sentence best completes the diagram?

• Most people only see the caves in pictures.

• The heat inside the caves is dangerous.

• People can stay in the caves for one hour.

• Sweat does not leave the skin.

What causes the giant crystal caves to be so warm?

• crystal shapes

• underground vents

• moist air

• chamber sizes

The reader can conclude that –

• few people have been inside the giant crystal caves

• the giant crystal caves are easy to sneak into

• scientists spend long days inside the giant crystal caves

• the giant crystal caves were supposed to be a secret

Which detail supports the idea that the giant crystal caves will be even harder to reach in the future?

• The caves will be underground.

• The crystals will keep growing.

• The air in the caves will be hot.

• The caves will fill with water.