CurriculumVisions

1. READ/play the text
2. CLICK the picture (and video)
3. TRY this:
Q1: What would you call this if it were in the open air and there was no rock above it?
[Answer]

This is deep inside limestone rock at a place where the cracks have been widened so much that they make a natural tunnel.

You can see water pouring between bands of the limestone.

Limestone dissolves and so the cracks widen. This lets a lot of water flow through. Most other kinds of rock do not dissolve and so the water flowing through them is much smaller.

1. READ/play the text
2. CLICK the picture (and video)
3. TRY this:
Q1: What would you call this if it were in the open air and there was no rock above it?
[Answer]

Screen 4/5

Inside the rock

1. READ/play the text 2. CLICK the picture (and video) 3. TRY this: Q1: What would you call this if it were in the open air and there was no rock above it? [Answer]

Screen 4/5

Inside the rock

1. READ/play the text
2. CLICK the picture (and video)
3. TRY this:
Q1: What would you call this if it were in the open air and there was no rock above it?
[Answer]