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🗓️ 14 February 2025
⏱️ 7 minutes
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Caves are full of amazing stuff: bats, hidden passageways and of course – spectacular rock formations! So where do these rock structures come from? We asked geologist Hazel Barton to help us find the answer.
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0:00.0 | From the brains behind brains on, this is the Moment of Um. |
0:14.3 | Moment of Um comes to you from APM Studios. I'm Batty Crocker, the Bat. |
0:22.9 | Um. That's right, Batty Crocker, not Betty Crocker. I'm a little brown bat who just happens to have a very |
0:31.4 | similar name to a famous baking brand mascot. Do we both enjoy making soft fluffy cakes with pillowy clouds of sweet frosting? |
0:42.6 | Yes. |
0:43.5 | Do we both have warm, welcoming personalities? |
0:47.1 | Yes, obviously. |
0:48.9 | And do we both enjoy soaring through the night air, eating delicious insects? |
0:57.1 | Yes. But that's where the similarities end between Betty Crocker, the baking mascot, and me, Batty Crocker, the Bat. Although, |
1:05.3 | I guess I do own that gingham apron, but that's besides the point. The point is, as a bat, I get to do tons of |
1:13.9 | things that Betty Crocker doesn't get to do, like living in this awesome cave surrounded by |
1:20.5 | rock formations. See, these icicle-looking things? They're huge rocks called stalactites that hang from the ceiling. |
1:29.3 | And those over there jutting up from the ground, those are stalagmites. And here's a little |
1:36.3 | batty secret for you. I always remember which is which because stalagmites has a G in it, |
1:43.6 | just like the word ground. Stalagmites has a G in it, just like the word ground. |
1:45.0 | Stalagmites, ground. |
1:48.0 | Stalagmites come out of the ground. |
1:51.0 | Anyway, all these rock formations are made out of minerals, |
1:55.0 | just like the rocks above ground. |
1:57.0 | But how are they made? |
1:59.0 | Amber had a question about this too. |
2:01.6 | There's lots of different kinds of minerals that form in caves. |
... |
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