WEBVTT 1 00:00:00.090 --> 00:00:02.420 - This was from Davina from Magnolia, 2 00:00:02.420 --> 00:00:04.980 hey, again, from Magnolia Middle School in Joppa, Maryland. 3 00:00:04.980 --> 00:00:06.440 Thanks again for watching. 4 00:00:06.440 --> 00:00:08.100 How can you remember the difference 5 00:00:08.100 --> 00:00:09.790 between a stalactite and a stalagmite? 6 00:00:09.790 --> 00:00:12.460 Wait, wait, wait, it's my time to shine, hold on. 7 00:00:12.460 --> 00:00:14.160 So here we go. (laughing) 8 00:00:14.160 --> 00:00:17.390 So stalactites are the ones that are hanging tight 9 00:00:17.390 --> 00:00:19.250 to the ceiling, all right, you can picture that? 10 00:00:19.250 --> 00:00:21.700 They're holding on tight and they're hanging down, 11 00:00:21.700 --> 00:00:23.920 whereas stalagmites are the ones 12 00:00:23.920 --> 00:00:26.870 that might get big and tall one day 13 00:00:26.870 --> 00:00:30.300 from the drips that are falling down on them, all right? 14 00:00:30.300 --> 00:00:32.610 Yeah, I had one, ow! - Yeah. 15 00:00:32.610 --> 00:00:35.870 - All right, then I have another one online. 16 00:00:35.870 --> 00:00:37.930 This is from sixth-grade students 17 00:00:37.930 --> 00:00:41.870 at Mesa View Elementary School in Grants, New Mexico. 18 00:00:41.870 --> 00:00:43.430 - That's a-- - what kind of equipment 19 00:00:43.430 --> 00:00:45.443 do I need to explore caves? 20 00:00:46.600 --> 00:00:48.100 - So, well, you gotta start with a helmet, 21 00:00:48.100 --> 00:00:50.120 you gotta protect your head, right? 22 00:00:50.120 --> 00:00:51.690 And then you've gotta have boots on, 23 00:00:51.690 --> 00:00:54.150 we've all got boots on today. 24 00:00:54.150 --> 00:00:55.968 Gosh, what else would you need, el-- 25 00:00:55.968 --> 00:00:59.400 - Three sources of light. - Yes, three sources of light, 26 00:00:59.400 --> 00:01:01.700 elbow pads, knee pads, in case you have to crawl 27 00:01:01.700 --> 00:01:03.590 like we talked about earlier 28 00:01:03.590 --> 00:01:06.470 and, very important, you should always have other people 29 00:01:06.470 --> 00:01:08.420 with you, not just by yourself. 30 00:01:08.420 --> 00:01:10.820 You should go in a group of people. 31 00:01:10.820 --> 00:01:12.960 - I appreciate that you always bring back the importance 32 00:01:12.960 --> 00:01:15.190 of the people in caves, it's not just the resources, 33 00:01:15.190 --> 00:01:16.446 it's the people that are all brought together. 34 00:01:16.446 --> 00:01:17.960 - It's a team. - They might help you 35 00:01:17.960 --> 00:01:20.770 get out out of cave. - Yes, in case you get lost. 36 00:01:20.770 --> 00:01:21.603 - [Woman] Yes.