Day and Night - The Rotation of the Earth

#earth #daynight #ngscience
ngscience.com
Related free worksheets for this video can be found here:
ngscience.com/grades/grade-3/...
Explanatory video on the Earth's rotation and the resultant pattern of day and night on Earth. Interactive and printable worksheets relating to this topic are on ngscience.com.
All content on the ngscience.com portal is aligned to the Next Generation Science Standards (NGSS).
In space, the Earth moves in different ways. One way the Earth moves is by spinning on its axis. An axis is an imaginary line that runs through the Earth’s center. This spinning movement on its axis is called a rotation.
As it rotates, part of the Earth is facing the sun. This part of the Earth it lit up and experiences daytime. At the same time, the opposite side of the Earth is facing away from the sun. This part of the Earth is in darkness and it is nighttime.
It takes the Earth 24 hours to complete one rotation. The repeating rotation of the Earth is why we experience the daily pattern of day and night.
Hello, primary students! Have you ever wondered why we have day and night? Let me explain it to you.
Our planet Earth spins on an imaginary line called an axis. It's kind of like a spinning top, but instead of just wobbling, it spins around completely. This spinning takes 24 hours to complete, which means that in one day, Earth completes one full rotation.
Now, here's the fun part - when one side of Earth is facing towards the sun, that side experiences daylight. And when the other side of Earth is facing away from the sun, that side experiences night time. So, as the Earth rotates, different parts of the planet are exposed to the sun's light, while other parts are in the shadows, creating day and night.
Isn't that cool? It means that when we're sleeping and it's dark outside, other parts of the world are enjoying bright sunshine and having lots of fun. And when we're having our daytime activities, other parts of the world are getting ready to go to bed.
So now you know why we experience day and night on Earth!

[@davidekelman2373]

Now my kids understand the Earth's rotation.Thank you!

[@Absguy]

Thanks it really "made my day".

[@NGScience]

Haha, you are very funny. Thanks for the comment!

[@irwindergrewal8900]

🤣🤣

[@Kailani_Water]

haha

[@HeliNoir]

This is a great source and super simple to teach my 7 year old student. She asked me if there were 2 suns because when it was dawn where she lived, my time zone is still in the afternoon the previous day. I explained about the earth's rotation and she understood but having a visual aid will really solidify the concept. Thank you so much!

[@langleybeliever7789]

Maybe the student could teach you, as we are not spinning.

[@Jesus-warrior]

The earth is flat

[@Tempe415]

@@Jesus-warrior no

[@Jesus-warrior]

@@Tempe415 yea, God says in the Bible the earth is on pillars and unmovable

[@WimblBimble]

​@@Jesus-warriorwhere does it say that?

[@Bzt3819]

Great video. Super helpful and easy to understand for my 31 year old wife, thank you!

[@kunglao3381]

Lmao tell her I said hi

[@IAmSophiaIg]

Ur 31 wife is Learning that and I’m 14 and have to learn that

[@brainstormingsharing1309]

Absolutely well done and definitely keep it up!!! 👍👍👍👍👍

[@NGScience]

Thank you! Will do!

[@saleemshahzad4215]

My mind is blown by the creativity of the nature. Wow 😳

[@hkkkk3759]

Not nature is created by God.

[@AceSoprano18]

"the creativity of nature". Think about that statement for a second. How can a blind, impersonal force be creative? Spoiler alert: it can't. God created nature. Wake up.

[@andileleelife]

Nature is mindless.

[@vetrugrahavasi5404]

@@hkkkk3759 go read the book which says earth is flat

[@tsuyu_asui7072]

This really helped me on the science exhibit I'm working on that I'm having troubles with! 👍

[@NGScience]

Glad it helped!

[@simpboi6835]

Only here for school gang

[@Fortnite-do4mf]

Me 2

[@nuzhatmalik9097]

Me too

[@ffarmy1984]

I

[@western_wrld3244]

me 2

[@kazihossain7699]

Same

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I literally just search random stuff lmao and sometimes it’s educational

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[@ozzayyyy]

Same lol.

[@kimberlysalas7503]

Same

[@langleybeliever7789]

Yes good " animation".

[@viologiko44]

Why don't you search about flat earth..And stop watching tell a VISION..

[@alokeshpanda1087]

Thank it really "made my day"

[@thelearningchannel3014]

Wonderful information 👍

[@mirkashimofficial7614]

Thats amazing bro

[@anupdas7914]

Thanks for your help

[@fearlessnikita9139]

*Thanks; Love from 🇮🇳 Please keep making videos related to space,, Eagerly waiting 😃😀

[@yusuflodhgar6317]

Very amazing video

[@ChandraShekar-vj1zg]

Thank you for tell information

[@indianakponuahiah3395]

🎉 Thanks. My son is getting it😊

[@legendgamings786]

Thanks a lot

[@syedbilal9421]

Love your video

[@NGScience]

Thanks!

[@MdArshad-yg3yg]

Thanks you so much ❤❤

[@nocturnifyy]

This Is Excellent For My Future Kids! The Narration Is Great! Big Thumbs Up!👍

[@Mui_YuiTokito]

Ty so much now i might not fail my test tmr!😭❤And i never knew An axis is an imginary line😮

[@JacquelineEdson-o7t]

Thank u it's really nice and helpful

[@nightpkg8803]

Beautiful Video

[@NGScience]

Thank you very much!

[@nathanl709]

thanks NG! Enjoyed the cool facts

[@NGScience]

Glad you enjoyed!

[@thotaruthwik6535]

@@NGScience ☺☺☺

[@thedullone]

first we have the repeating day and night, second we have the repeating yearly seasons. What is the third repeating pattern and how long is it, anybody know? Is it the freezing and boiling of the entire surface of earth? Anybody???

[@ninesukhoo2444]

I love it, now I know how the earth rotate thank a lot❤

[@shaunkhan7402]

Really this video is so beautiful ,,I am from Bangladesh

[@firdaouss6789]

So you’re saying if I find a way to float above ground I can be in Hawaii within 24 hours

[@shravyashetty3088]

Thank you mam it helped me to learn about rotation of the earth.

[@achintyakumardutta6054]

Good intelligent video

[@wiztadyos.g5261]

Great!

[@Daniel-kl7zw]

Here for school

[@JayPrakash-bm2xg]

Me too

[@shaerobinson1128]

Yeah

[@shaerobinson1128]

Which grade are you

[@91lovemusic]

Now i can understand more 👍

[@AnilKumar-zo2eu]

Thank you mam for your packaged information

[@mirchakarazamrind-eo5xf]

Gorgeous ❤

[@khayahire8369]

I really learned

[@bavihuong6797]

I love this video

[@jayarajchinnu2764]

I like the effect

[@mathaimv4081]

I love your video very much 💞💞

[@NGScience]

Thank you so much 😀

[@mathaimv4081]

Welcome

[@asskkitchen1234]

Thank you mam l really enjoyed this video

[@MichelleT-so4we]

Nice visual

[@faizazhar1162]

Great explanation

[@NGScience]

Glad it was helpful!

[@Sumeetwakalkar]

Very nice

[@dj.rofiko7387]

How can I get there. Please provide a solution

[@user-nf1nf9hu7k]

Thanks 😊

[@NGScience]

Welcome 😊

[@NGScience]

You're welcome!

[@prosperamaning164]

Thanks

[@NGScience]

Welcome

[@sanjanakanojiya5004]

Thank you so much 😊🙏😊😀

[@user-ce5rm3tf1s]

23.5 degree line is very useful. Thank you.

[@NGScience]

Glad it was helpful!

[@farnanphotos6001]

Have a question What is this 23.5° angle ? (Off what Vertical ?)

[@mqaisarnaeem]

@@farnanphotos6001 The earth is tilter at 23.5°

[@AjayKumar-qn2bw]

Thnx ...it really` made my day'

[@brombileisagoofygoober]

Someone said that already and it supposed to be thanks …it really “made my day”

[@asesoracomercialag5877]

😊Great

[@saatviksharma2616]

This is good

[@gageboy14]

What is the relationship between rotation and time?

[@NGScience]

The Earth's rotation is directly linked to the concept of time as we understand it on a daily scale. A full rotation of the Earth on its axis, which we perceive as the transition from day to night and back again, takes approximately 24 hours. This rotation defines our concept of a "day." Moreover, the speed of Earth's rotation also impacts time measurement. The Earth rotates at a relatively constant speed, which allows us to divide time into consistent units: hours, minutes, and seconds. Additionally, Earth's rotation is the basis for time zones. As the Earth rotates, different parts of the world experience daylight and darkness at different times, hence the need for various time zones. Finally, discrepancies between our exact solar day (about 24 hours) and the time it takes for the Earth to rotate fully on its axis (approximately 23 hours, 56 minutes, and 4 seconds - known as a sidereal day) are corrected through the use of leap years and occasionally leap seconds to keep our calendar and clocks accurate. So, the rotation of the Earth is fundamental to our understanding and measurement of time.

[@juliet2617]

POV: You ace your science quiz because this video had so many good facts 😊😊

[@marycamargo3041]

Yeah

[@elikundangoye7586]

I appreciate

[@cricZIAN]

Nice video.

[@NGScience]

Many many thanks

[@hasanmalik8037]

Nice voice... Thanks for reminding school day

[@srikantmohapatra6492]

Theek hai yah bahut Achcha hai

[@therussells4950]

When can I start seeing the horizon bend?

[@smokesomelissy]

Worked for my 4 year old to explain, “how does the sun come up?”

[@safaed3893]

I love this video. My 6 years old was able to understand the pattern of day/night! Amazing!

[@UCHIHA_ITACHI906]

Sice video

[@kingofkings5365]

good for 5 th grade students thank you

[@ebdo7863]

Cool x

[@townview5322]

Excellent presentation

[@preetiverma6062]

Thank you so much😊😇

[@NGScience]

You are so welcome!

[@lifewithjody4246]

Here to learn for school

[@ashokdutta8453]

Pl show vedio of actual rotation of earth in slow motion

[@propertyzone]

Superb 👌👌👌

[@NGScience]

Thanks for liking

[@shekhcam9708]

how possible if earth revolves at the speed of 1670 km/hour ?

[@nisnanowshad328]

Wow

[@balamad]

great

[@cutegirlraktima6859]

Thank mam ☺️☺️☺️☺️☺️☺️☺

[@88Doug]

It was 80 here one day, snow the next, back to 80.......

[@demon_fire7756]

super

[@ajimssali9943]

One big question why doesn't we feels the earth rotation if earth is rotating?

[@kitcanyon658]

First of all, you would say "why don't we feel...". The answer to your question is that the human body only detects motion through forces felt from moving. But it isn't just moving, it is a movement that would cause an acceleration, not just velocity. After all, when you're flying in a commercial airplane at 500mph and there is no turbulence, you do not feel the motion. That's because your body isn't being accelerated as the earth rotates. Actually it is slightly due to centripetal acceleration but the force of this is so small you can't detect it. The earth is big. It doesn't rate very fast.

[@entangledmindcells9359]

Do you even know how much you are expecting to feel?

[@lunar4154]

Muito bom Miriam Lili lili

[@hectorelmexican4014]

Bravo Bravo thums up

[@denden2440]

Earth, The color Blue is sea water right? Sea water are curve??

[@langleybeliever7789]

Grammar.

[@SpiralAnimationssssss]

My whole class when we watched this was like W oW the niGhT TiMe!!!1!1!!

[@achintyakumardutta6054]

For Kandi Raj High school

[@memelady1787]

here for school :D

[@janaahmad9567]

Same

[@limonkhan8475]

Imaginary line

[@iamthenoobie]

Here for school boiii

[@milkcakeyy]

Thank you this was very helpful!

[@ledragon4348]

yes

[@EXPERTALGODBACON]

Science memories...

[@adil..8431]

👌👌

[@jacobjames1171]

Here at 48.

[@PaperNathaniel3421]

Yeah

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wow🙂😄

[@irwindergrewal8900]

WOWWWWW!!!!

[@NGScience]

thanks!

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cooooooooooooooooooooool

[@kareenaparikh7291]

ty was helpful for school

[@milkcakeyy]

Lol I’m here for school rn

[@TT-zo6px]

When north is summer, the south is in their winter. Time zones are because of the ANGLE of the sun. If all compasses point NORTH, sun and moon go EAST to WEST. Shouldn't the north be center of world map? Things would be understood much easier.

[@Dafuba_boom]

Same I only did this for school

[@benadetamatata2049]

Amazing wow!!!!!!!

[@NGScience]

Glad you like it!

[@aliiiiblack]

POV sent from a PowerPoint

[@ronyandanthonygaming3946]

I learnt lots from this

[@popra432]

The day isn't exactly 24h, is actually 23h and 56' and 4" that's why we have leap years...