-What else would you like to know about the ocean? 
-Why is it blue?
-Another great question! Why is it blue?
-I don't know.
-That's why he asked it.
-The classic, which is wrong
- Is why is the water blue, it's because it's reflecting
-Water is reflective, so people think it is reflecting the blueness
- of the sky, but that's not entirely true. It's more to do with rainbows
-Huh?!
-Have you ever seen a rainbow?
-Only on like TVs and stuff.
-What colours do you have in a rainbow?
-Blue.
-That's the one we were going for?
-There is blue in the rainbow.
-What other colors?
-Green.
Yup.
-Yellow.
-Yup.
-Orange.
-Yup.
-Red.
-Pink.
-Hmmm. Kind of
-Turquoise?
-Turquoise. Something I call turquoise. Beautiful.
-But that all comes from light.
-What colour is light? That's a tough question.
-White.
-Very good answer!
-Good job!
-It is white
-Light looks white
-We have a big light now and it looks pretty white, doesn't it?
-Yeh.
-But actually is all the colours of
-the rainbow. And they're all moving in a
slightly,
-colours move in a slightly different way. They move, a bit like the ocean, in waves. Make sense?
-Yeh
-So the red light, that wave might be like this. A big wallowing wave
-Whereas the blue light might be moving like this, much choppier wave, different wave.
-Now, what's the ocean made of?
-Uhhh, water.
Absolutely right.
-So, the ocean is made of water and when the light hits the water, those different waves, so that big
-wave, that big red wave finds it really
easy to just go through that water
-and the yellow waves, they are big waves
like this, they find it really easy to go
-through that water. but you know those blue waves, like this, that doesn't find it easy to
-get through the water so when that hits
the water that blue wave kind of
-gets scattered everywhere and that's
what you see. So all the other colors
-just go through that water, but the blue waves
because they're a different shape they
-get scattered into your eyeballs and
that's why the ocean looks blue.
-It's the same reason the sky is blue.
-Exactly.
-Beacause the air in our atmosphere does the exact same thing. So the nitrogen and the oxygen in the air. So the light from the Sun
-hits it the red and yellows all go
through but the blue light gets
-scattered and that's why the sky looks
blue and if you on another planet where
-there isn't nitrogen and oxygen in the
air it would be a different color
- It wouldn't be blue.
-Green sky. Yellow sky. Red sky. What color would you make the sky?
-Uhhhh. Keep it blue.
-I thought you would say that.
-I agree with you.
-Have you ever seen a red sky though?
-Only on like
-I've seen it on pictures.
-Your parents should take you out more.
-How about when the sun is going down, at sunset, what clour does the sky look then?
-Like yellow, orange and red.
-Very good.
- Exactly, because now the Sun is lower in the sky right, and instead of just the blue
-light being scattered, it's the red light
that gets scattered.
- Because the light is at a different angle so the the color of the sky changes at sunrise, when the
-sun's coming up, it's a reddish-orange.
