STEMonstrations: Sleep Science - YouTube

Establishing a routine for sleep is a key component to an astronaut’s ability to function aboard the International Space Station. In this episode, Expedition 55/56 Flight Engineer Ricky Arnold discusses the crew sleeping quarters, why sleep is important and how they adapt for circadian rhythms aboard the station. Use the lesson plan that coincides with this video to invigorate your STEM classroom.Be sure to visit for the Classroom Connection related to this video and more educational resources that explore the research and technology of the International Space Station. Try the activity in your classroom! download link:

Kaitlin Wright

school was h*ll

Timi Dutta

Things what bring people together:1.human rights2. Y O U T U B E R E C O M M E N D A T I O N

btw the only reason im scared of death is the fact that my mom is gonna be sad


I don't know how you find all these but you are a genius man. Keep doing what you do best

jesse rivera

thats gotta suck for that panda j.k.

Animation Nerd 27

Frozen 3 meet tangled



Ethan Hill


Patty Mayo Is my Daddy

Do lacrosse trick shots because I play lacrosse

Fred Furlong

Empire state building ;-)


Green items Gandalf...? What a rip off!

Wilson The Coconut

Ok I just starred the video and immediately I'm guessing Joyce Chu I MiSS U Suicide will be on here

Glow-in-the-dark CIAnigger

Lot of salty sodomites in the comment section 😂😂😂


When I saw the title I was really hoping you'd finally talk about Inglot.

I am so sorry for your loss.

They where perfect! and still are. They where so-called my friends but i don't know if they care. i grow up with barley and money and people dont know. i like my lifestyle and all but.. My friends?

hxnnxh gxmes

I’ve just realised that these videos are starting to make me anxious

Plz stop

Andyyy Wu


Xiaolei Li

1!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! cup left

hugeKingKibbleFan 69

Seems like ty is flexing on Dylan with his ability to jump and dunk and shit

Omar Aly


My mom: you lost weight... OMG YOU ARE STARVING AND ARE LIYNG TO ME???!!!!

Deborah Hudson

Who else really wants to do trick shots after this

Ryan P

Now I know how much money they spend on the rage monster 😐

Dragon Ballz Y'allz...




This is the type of judgement LBGT members went through.

AmazingJJ16 Ph

We went to the beach last week and i felt what hot sand feel like

Summer Plays

1:53 “muma “

Sarge Fido

do you get the weapons right after

a s h i a p

This guy is so lucky to have early access to the newest console, Tony

Khoa bii

Wowww 2019??



souldier fights! plastic

Stop domestic abuse

Madam Rabbit

My primary years are filled with isolation and bully too, but i just dont care, more like stop carring of anything, it starts out as ignoring their words and actions, then bad grades i dont care, injuries i dont care, getting to troubles i dont care, being a bad person i still dont care. If i feel like it Ill annoy them to death. Like being an loud idiot mentally retared they say i was, I yell and hit and annoy them to death

DP Urlacher

it’s rewind time


Warriors investor, not a fan


this is how many people are excited for Frozen 2 💙👇👇

Thekiller 9281

I am The smuggler

Kylie s WORLD

She made harry potter ??


Did the girl gave photos from 5 years ago?