00:00 [music]
00:05 Hello, Shira, Zonya.
00:07 Hello, Chris!
00:09 This is our first experiment to wake you up.
00:11 What's that?
00:12 Why, what's that for?
00:14 Because it's about the Cobra!
00:16 [music]
00:19 Okay, these are what we need.
00:21 Colored pens, paper plate, scissors, pin, wire, and this flute.
00:29 On our paper plate, we'll draw a cobra.
00:33 So, Ate Zonya will cut this, while we, Ate Shira, will color it.
00:40 After Ate Zonya cuts, she'll draw, color, and cut.
00:45 It'll look like this.
00:46 Okay?
00:47 See, it has different layers.
00:48 It's popping out.
00:49 And then, without using the pin, we'll put it up here.
00:54 Okay.
00:55 And we'll put a string.
00:57 Very simple.
00:58 Okay, now, how will we move it?
01:02 How, Kuya?
01:03 Okay, like this.
01:04 I'll do it.
01:06 Cobra!
01:07 [cobra sound]
01:10 OMG! It's moving!
01:14 [cobra sound]
01:16 There it is.
01:17 OMG! The cobra is moving!
01:21 Let's see.
01:22 It's listening to music.
01:23 [cobra sound]
01:26 Wow!
01:27 See?
01:28 It's just made from a paper plate, but it's moving.
01:32 How did that happen?
01:33 Because the electric stove is on in the basket, the air above it is heated.
01:37 When the mother is heated, it expands and the molecules move away from each other.
01:43 That's why the density of hot air is lower than cold air.
01:47 It's not that tight.
01:49 That's the reason why it's moving.
01:51 The rise of hot air is an example of convection,
01:54 which is the circulation of fluids, like liquids or gases.
01:58 Then, in the circulation of this movement, the paper cobra will move as long as it's above the hot stove.
02:05 I believe.
02:06 [cobra sound]
02:07 [silence]
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