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ďťż#chinedurubyďťż #funfact
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#chinedurubyďťż #Educationďťżďťż#chinedurubyďťż ďťż#Educationďťż
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EDUCATIONAL TIP - Why Do We Yawn?
Yawning is not just because you are sleepy.
When you yawn, you take in a big breath of cool air. That cool air helps cool down your brain.
Your brain works best when it is cool, not hot. So when you are tired, bored, or your brain is getting warm, you yawn to cool it down.
That is also why yawning is contagious. When you see someone yawn, your brain thinks "I need cooling too" and copies them.
You probably just yawned reading this.
#chinedurubyEDUCATIONAL TIP - Why Do We Yawn? Yawning is not just because you are sleepy. When you yawn, you take in a big breath of cool air. That cool air helps cool down your brain. Your brain works best when it is cool, not hot. So when you are tired, bored, or your brain is getting warm, you yawn to cool it down. That is also why yawning is contagious. When you see someone yawn, your brain thinks "I need cooling too" and copies them. You probably just yawned reading this. #chineduruby0 Comments ¡0 Shares ¡3 Views ¡0 Reviews¡2
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EDUCATIONAL TIP - Why Is The Ocean Salty?
The ocean was not always salty.
Rain falls on rocks and carries tiny bits of salt from the rocks into rivers. Rivers carry that salt into the sea.
When water evaporates from the sea to form clouds, the salt stays behind. It doesn't go up with the water.
So for millions of years, salt has been entering the sea but not leaving it. That is why the sea keeps getting saltier.
One teaspoon of seawater has more salt than you think.
#chinedurubyEDUCATIONAL TIP - Why Is The Ocean Salty? The ocean was not always salty. Rain falls on rocks and carries tiny bits of salt from the rocks into rivers. Rivers carry that salt into the sea. When water evaporates from the sea to form clouds, the salt stays behind. It doesn't go up with the water. So for millions of years, salt has been entering the sea but not leaving it. That is why the sea keeps getting saltier. One teaspoon of seawater has more salt than you think. #chineduruby0 Comments ¡0 Shares ¡3 Views ¡0 Reviews¡1
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EDUCATIONAL TIP - Why Do We See Lightning Before We Hear Thunder?
You see the flash first, then hear the boom later. It's not that they happen at different times. They happen at the SAME time.
Light travels very, very fast. Almost instantly.
Sound travels much slower.
So the light reaches your eyes first, and the sound reaches your ears seconds later.
That's why you can even count to know how far the storm is. Every 3 seconds between flash and thunder = about 1km away.
Nature is timing itself for you.
#chinedurubyEDUCATIONAL TIP - Why Do We See Lightning Before We Hear Thunder? You see the flash first, then hear the boom later. It's not that they happen at different times. They happen at the SAME time. Light travels very, very fast. Almost instantly. Sound travels much slower. So the light reaches your eyes first, and the sound reaches your ears seconds later. That's why you can even count to know how far the storm is. Every 3 seconds between flash and thunder = about 1km away. Nature is timing itself for you. #chineduruby1 Comments ¡0 Shares ¡3 Views ¡0 Reviews¡1
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EDUCATIONAL TIP - Photosynthesis Made Simple.
Plants are cooking every day. Sunlight is their gas, CO2 is their ingredient, Water is their maggi. Product? Glucose for food + Oxygen for us to breathe.
Sun + CO2 + Water = Food + Oxygen. That is the whole secret.
#chineduruby #EducationEDUCATIONAL TIP - Photosynthesis Made Simple. Plants are cooking every day. Sunlight is their gas, CO2 is their ingredient, Water is their maggi. Product? Glucose for food + Oxygen for us to breathe. Sun + CO2 + Water = Food + Oxygen. That is the whole secret. #chineduruby #Education0 Comments ¡0 Shares ¡9 Views ¡0 Reviews¡1
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