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Um, but the water is darker, look at sattelite or aerial photos.
And the water is moving and spreading the heat, while the sand only gets warm on top.
This seems wrong.
I'm curious what grade level these are for? When I saw the title I was expecting more explanation than just "darker objects absorb light and lighter ones reflect it" like other properties that factor into reflectivity, the ocean's constant movement, and percentage of surface area for land and water. I don't think this is definitive at all, since the ocean is constantly dissipating the energy it absorbs, and it's temperature varies greatly dependent on location (like the Atlantic Ocean is generally warmer than the Pacific)
Nice fox shirt! I'm guessing you filmed the past 6 episodes on the same day?
(not like there's anything wrong with that, because I absolutely love the content!)
Imagine. 50% of a tiny fraction of the sun's full output hits us, and it's still immensely much energy. Amazing.
I'm not sure about this one, maybe you'll clear it up in an upcoming episode, but there's a degree to which this is misleading. It's true that land reflects less light than water, and thus if you have equal areas of land and water, the land will be heated more. But the Earth doesn't have equal areas of land and water. Its surface is 70% water. The majority of heat transfer to the Earth as a whole goes to the oceans, largely because there's just a lot more ocean than land.
I misheard what she said. I thought she said, "What's up son." It was Sun, not son.
Yes people, 8 planets! Come on, get over it! Wait a minute… Wrong audience… Ok, forget what I just said.
If darker colored objects pick up more of the Sun's heat, does that mean people of color get hotter than white people?
At 0:44, did you notice that they show Saturn as the fifth planet? And Jupiter as the sixth?
put more cool stuf lie voclanoes
put more cool stuf like voclanoes
I like how this is apparently for 5th grade and I am in 6th grade and I love it
I am a science teacher, and I'm confused by this explanation of why the water is cooler, as according to the climatology class I took, sand actually has higher albedo (reflects more sunlight), at 30-35%, than water, especially with high solar altitude (which has albedo of only 3-10%). I was under the impression that water doesn't heat up as quickly, not because of its color (which is often dark blue, as opposed to light yellow like sand), but because it has very high specific heat– it takes more energy to raise its temperature. Also, because solar radiation penetrates water, and water circulates, the absorbed energy is more evenly spread in water, so that the surface of water doesn't get as hot as it does with sand, but the sand beneath the surface stays cool. I know this is for young kids, and so "specific heat" might not be something you want to address yet, but, while simplified explanations are much appreciated (and I love Crash Course videos for this purpose), I don't think this is accurate. (My sources: Moran, Joseph M. Climate Studies: Introduction to Climate Science. American Meteorological Society, Boston, MA. 2010. Chapter 3 and 4, albedo chart on page 84). Thank you!
is this heat and tempreture?
Can you do a video on ocean zones 🌊
Love the bubble graph nice lesson love it
this is so boring make it fun.
chool tyi846kk,uhghu suck
I LOVE THE SUN
hello whats your name
you are smarter
+Aubrey Nelson I am also a science teacher. I teach 6th grade science in Georgia, so this is a topic I am teaching my students. I am not going to show them this video, although I am very disappointed because I love Crash Course, and really hoped that Crash Course Kids would have the same caliber. I don't know much about specific heat and all that, but I know that the color of the land and water have very little to do with this unequal heating. The textbook doesn't even go into why it happens, but I'm guessing its a solid vs. liquid issue. Land is more molecularly dense, and therefore the energy is absorbed faster, which is why it also looses heat more quickly (also not addressed in this video). I may be wrong, but it makes way more sense than what this video says.
We watched a few of these in my science class and I kind of liked them! I subscribed
Sabrina, at the start of the video, you should have said to the sun, what up boy!
are you a scientist
ᕼOᗯ ᗪO YOᑌ ᗪO TᕼE ᑭIᑕTᑌᖇEᔕ?Iᔕ IT ᗩᑎ ᗩᑭᑭ?📱
Thanks for the videos they really helps please make more!
I'm this rec
Specific heat, you can't ignore it.
thanks that was just awwwwwwwwesome
This acc saved me I love these videos
love what you do
she is very good.
That ending, though. Lololol
go water boo land.
Jupiter is the 6th and Saturn is the 5th
The water of the beach is not dark because sunlight is able to reach the bottom making it able to see trough but the deeper the water is the less sun it gets so it turns darker
What are your sources for this clip n topic? may i know please? 😀
Dang, she talks fast.
best video ever
How does the sea influence temperature on land
this awesome keep it up
The reasoning in this video is incorrect. Water acts as a heat reservoir – it absorbs and holds onto heat energy more efficiently than land and (and the air above land). Water has more molecules in the same amount of space as air, so the air will absorb then release heat energy more quickly than water since the air molecules have more space to vibrate. (This is the real reason land/air heat up more quickly, not their color or albedo). The bonds between the hydrogen and oxygen in water are also very flexible and able to hold onto that heat energy for a longer period of time, causing the air temperature above the ocean to stay consistent day and night relative to the air that heats up and cools very rapidly in a 24 hour period.
yea are you a scientist?
This video does not give the correct scientific reason for the unequal heating of land and water. I'm a middle-school science teacher, and I generally love Crash Course. Sadly, I won't be using this video. I have made plenty of mistakes myself, so I'm not judging, but I hope that Crash Course will re-make this video with the correct explanation. The main reasons for the uneven heating of land and water are 1-the different specific heats of water and sand and 2-the transparency of water vs. the opacity of sand, and 3-The differnt movements of solid and liquid particles. 1: The specific heat of water is 4,182 joules/kilogram, while the specific heat of quartz sand is only 830 j/kg. That means it takes almost 5 times the amount of energy to heat up 1 kg of water as it does to heat up 1kg of sand by the same amount. (For equal volumes, it's still going to take more than 3 times the energy to heat water.) 2-Since sand is opaque (light can't pass through it), any energy that is not reflected is absorbed by the surface only. That means that the energy that is absorbed is concentrated in the upper layers. Since water is transparent, some of the energy is absorbed at the surface, but much energy passes further down and is absorbed by water below the surface. 3-Since sand is a solid, its particles only vibrate in place, while molecules in liquid water can and do flow around each other. That means that the heat absorbed by the surface layer of sand can only be transferred by conduction to the sand just below it or to the atmosphere just above it. As you know from digging your feet down into the sand at the beach, the energy doesn't get too deep into the sand. On the other hand, since water molecules move around each other, they spread the heat more evenly through the water (though it's still not even as you know from floating near the surface of a lake and then diving down deep into it).
YOU ARE SO FUCKING BORING but very helpful thanks…😌
During exams, it makes me so happy to see a crash course vid on a topic I'm having trouble on. It's such a pain to go through a million others just to check whether what I wrote was correct or not.
0:59 no matteR CAN TRAVEL faster than light, and since you showed matter is traveling at light, your wrong
this is like the worst show i ever seen
I watched these for 1 week and i got 100 on my science test.
Who watches this
I like your shirt😁🦊
interesting and knowledgable
I love your shirt :3
What about the human made heat?
The way they do it
Yeah—usually I love using the Crash Course for Kids videos in my 5th and 6th grade classes, but this one seems a little off the mark. I don't think that your reasoning is sound or complete. There are several variables that figure into why water and sand would heat at different rates. I would love to see you redo this episode with a bit more research.Thanks for all you do to help kids learn!
“Hey, where’d the sun go? Oh! Right, outside. Sounds like a plan to me!” Quote of the century.
🌊🌄🌅I love water and land.🌎🌏🌍🌊🌊🌄🌅🌎🌅🌊🗻🏄🚣🚵🚤🔥💦(^'^)😸😺😹😻😽😿😽😸😸😺😼😸😹🙀😾
You said, "Lighter colored things tend to reflect light more than darker colored things." That is a statement contrary to physics.
And please cut the ______.
Isn’t the fact that solids (land) have tightly-packed molecules than liquids (water) a better explanation why it heats up faster? Because heat causes the molecules to move/vibrate and since the solids are tightly packed, when one molecule moves the other molecules also move causing heat to pass around them.
Isn’t the fact that solids (land) have tightly-packed molecules than liquids (water) a better explanation why it heats up faster? Heat causes the molecules to move/vibrate. Since the solids are tightly packed, when one molecule moves, the other molecules also move causing heat to pass around them.
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