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How Fireflies Glow – The Chemistry of Bioluminescence

November 10, 2021  •  EPISODE 95

What makes fireflies glow? Join Roger Billings as he helps students explore the enchanting world of fireflies! Discover the amazing chemistry behind their glow and see how these tiny creatures light up the night with their bioluminescence.

About DrB

Dr. Roger Billings is a visionary innovator whose work has touched the lives of millions of students and transformed the landscape of education. Widely known as “DrB” to the countless kids who benefit from his groundbreaking Acellus learning system, Dr. Billings has dedicated his life to advancing education through technology. As part of DrB’s lifelong commitment to supporting education, Science LIVE was launched as a way to “give back” by mentoring students in conjunction with the Roger Billings Scholarship Program.


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About the Roger Billings Scholarship Program »

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272 Comments

  1. Aiden Bos

    I wish fireflies lived in North Idaho. I wonder why they don’t.

    Reply
  2. Brynlee

    Fireflies are interesting

    Reply
  3. Caysen

    Fireflies are so interesting and cool

    Reply
  4. N.B

    Such an interesting experiment.

    Reply
  5. Matthew watson

    Thank you so much that’s so cool.

    Reply
  6. Shane

    Awesome video I love Fireflies

    Reply
  7. Sam

    It’s neat how bioluminescence works, and it’s cool how there is bioluminescent beaches too!

    Reply
  8. Palinka

    Love the song it almost let me cry

    Reply
  9. William Jonah Mogan Walker

    I love acellus so much you have helped me so much thank you.

    Reply
  10. Maximilian

    Incredible as always…

    Reply
  11. Meye

    I loved it! It was very inspiring to learn from! cool school!

    Reply
  12. Bella

    I thought it was really cool when he made light using liquids! How does that work? Can I try a similar experiment at home?

    Reply
  13. STORME

    THIS IS AWESOME

    Reply
  14. Zainab Malik

    Fireflies are incredible insects!

    Reply
  15. Meye

    awesome!

    Reply
  16. Jayden Eade

    How does bioluminescence not effect the oceans creatures

    Reply
  17. Hailey White

    Omg this is so cool! I love Fireflies!!💜💜
    Roger Billings, you are my Idol, love ya Pajet Monet, I took your class last year and it helped me a lot thank you for the inspiration!💜😇💗💫💫

    Reply
  18. Meye

    fireflies are beautiful!

    Reply
  19. Sulgi

    I love acellus

    Reply
  20. Charlotte Spurlock

    Thank you these are my favorite

    Reply
  21. Mariah Benson

    That song was a very good song but I almost cried. I also really loved how Roger Billings was able to make that light like fireflies light they have.

    Reply
  22. Levi Hall

    Wow! That’s so cool. 👍😎😆🤩😁

    Reply
  23. Dana Prince

    I love fireflies

    Reply
  24. sam

    So cool

    Reply
  25. Allegra

    I love science

    Reply
  26. Mckenna Fawcett

    bioluminescence is so cool!

    Reply
  27. Koren Myles

    I just learned about luminous light and illuminated on science yesterday!

    Reply
  28. Riley knotts

    Fire fly are cooler then I thought.

    Reply
  29. jon michael

    so cool i love fire flys

    Reply
  30. Kimani Buchanan

    Never knew how interesting the science behind how fireflies was, how exciting!!!

    Reply
  31. Grace Fox

    I loved learning about the fireflies. They are so fun in the summertime.

    Reply
  32. mollie applegett

    whenever i think of bioluminescent i think of deep sea creatures but i think its cool how fireflys can talk to one another using bioluminescents and i also really liked the experiment also, i used to catch fireflys all the time. My dog ate on once, the song at the end sounds nice

    Reply
  33. Rho Zapf

    I love fireflies

    Reply
  34. Ryder Newman

    Fireflies are so crazy they can fly and have bioluminescence, what a cool bug.

    Reply
  35. Dante

    We call them lightning bugs.

    Reply
  36. Jae Lea Two Moons

    I loved the song at the end.

    Reply
  37. Sean Seaman

    I loved watching the experiment.

    Reply
  38. Annabelle Benham

    Wow, fireflies are so cool!

    Reply
  39. Caleb Bardin

    I’ve never really thought about how a firefly lights up. It’s interesting to hear about the science behind how it is able to do it.

    Reply
  40. Khayden Hepburn

    I never knew that bioluminescence was so bright and colorful. I loved the way the fireflies bioluminescence glow at night. I hope you can show us a video about how to catch fireflies. So awsome!

    Reply
  41. Blessing

    I’ve never seen fireflies before but knowing how they work is amazing!

    Reply
  42. Megan Irving

    my brother and i always used to fight over who got to catch the fireflies.

    Reply
  43. Juliann Huff

    Love the song I wish the fireflies would actually chase the hard times away

    Bionic video please🦿🦾

    Reply
  44. Zoey king

    I love bioluminescence, especially since I am studying marine biology and currently am studying bioluminescent species of plankton and algae, and how it all works. I really liked it and it was really fun to learn and helpful.

    Reply
  45. Angel Williams

    I like fireflies.

    Reply
  46. tatianna barett teal

    one time my big sister caught a fire fly and I wasn’t scared I said wow instead and this video is sooooo cool!

    Reply
  47. Sophia Benson

    Pajet, can you make a song like that with butterflies?🦋

    Reply
  48. Amwaj alrashid

    Fireflies are awesome

    Reply
  49. Liam Asselin

    I’ve only seen fireflies once but they were amazing!

    Reply
  50. Juliann Huff

    Fireflies are wonderful I love catching them😸.・゜゜・ ・゜゜・.

    Reply
  51. nathaniel thompson

    wow fireflies wow cool 🙂 🤯.

    Reply
  52. Isaac Collins-Pickens

    Fun ☺️

    Reply
  53. Angelina

    I always wondered how fireflies glow

    Reply
  54. Julian

    acellus is the best program I no. and I do not know where I would be if it was not for acellus😘

    Reply
  55. Nikole

    Used to be scared of fireflies, But they’re very interesting.

    Reply
  56. Sophia Benson

    That song almost made me cry .I love fireflies!🥹

    Reply
  57. Julian

    That made me cry.😥

    Reply
  58. Aubrielle Brown

    It is so Fascinating how they glow!!(:

    Reply
  59. Jadalyn

    I love this so much

    Reply
  60. Serenity Tisdale

    Fireflies light up, and they are cool.

    Reply
  61. Anastasia

    Fireflies are definitely the coolest bug. Can’t wait to see them in the summer!

    Reply
  62. Zandie Ortiz

    This was a very cool video, I liked the part where they mixed the chemicals together to make it glow!

    Reply
  63. Avery

    I loved learning about fireflies and the chemicals that they use.

    Reply
  64. Nina Manning

    Loved this video about Fireflies! So interesting and the song and video made my mom cry a little, it was so beautiful.

    Reply
  65. Travon Perrigo

    fireflyes are neat

    Reply
  66. Tshepiso Makwela

    the fireflies are so cool.

    Reply
  67. Kashen Logan

    This changes my mind about fireflys this is so cool.

    Reply
  68. Keegan George

    I love the pictures of the fireflies

    Reply
  69. Eduardo Campirano

    I love the lesson very much. It was very, very cool and the song at the end was very much beautiful and I’d really like science live.

    Reply
  70. Cheyenne

    I didn’t know that fireflies glowed

    Reply
  71. Andyn Miller

    What is the firefly really named for? When was the firefly named? And how do they inspire and what do they represent?

    Reply
  72. Christopher Jackson

    I will NEVER look at fire flies the same..lol

    Reply
  73. Jaxon Albert

    I like to catch fireflies, they are so cool.

    Reply
  74. Gaberobinson

    Hi Dr. Roger Billings I like Acellus🦸🏻‍♂️🦸🏻🏇🪖🪖

    Reply
  75. Jayden Barron

    Lighting is also how nitrogen gets into your soil for agriculture! That and or growing beans…

    Reply
  76. Jayden Barron

    I never knew where that phrase had come from!

    Reply
  77. Spirit

    she is my favorte techer

    Reply
  78. Abigail Riley

    Are the bioluminescence that fireflies use the same as the bioluminescence that some creatures deep in the ocean have?

    Reply
  79. PJ

    I wish we had fireflies here. I miss the from where we used to live. Thank you!

    Reply
  80. inessa

    Wow thats so cool how fireflies glow like that!!

    Reply
  81. Carlos Gabriel Cabral Sanchez

    Its amazing the way they produce light!

    Reply
  82. Owen Stephens

    Very interesting. We hardly have them here in eastern North Carolina like we used to when I was younger.

    Reply
  83. Darrell Bryant

    So cool to watch fireflies. So neat to find out why they glow.

    Reply
  84. Adalyn Flores

    This is so cool all the chemicals that make up light in a bug or a lightbulb or anything that glows is so magical

    Reply
  85. Daniel Dimano da Costa

    The funny fact is that Fireflies glow is like a secret light show they can turn on and off at will! Thanks for teaching us.

    Reply
  86. Mackensie Schroder

    This was so cool to hear about!

    Reply
  87. Dylan Willis

    Where do fireflies live? It is cool how they glow, I didn’t know that.

    Reply
  88. Cayden

    It’s really cool how you showed the oxygen in the flask making the flame go again. The stick was just glowing and then ignited further when pushed into the oxygen filled flask!

    Reply
  89. Allison Lacrue

    Wow fireflies are so awesome!

    Reply
  90. Rafe Moran

    I love fireflies, this was very interesting.

    Reply
  91. Jacob Frank

    That’s amazing guys, thank you for teaching us all of that

    Reply
  92. Sasha Austin

    Fireflies are so cool!

    Reply
  93. Brewington

    How fascinating that fireflies cannot glow in all colors!

    Reply
  94. Julian Smith

    love the chem hope to see it more love it.

    Reply
  95. Coralynn Puska

    Amazing! Yeah. some glow Blue!

    Reply
  96. Jenerrah

    Wow that was something I haven’t seen before!!

    Reply
  97. Isaac

    That was cool!

    Reply
  98. Roxy

    I love fireflys I’ve never seen them before but thare so cool

    Reply
  99. Samuel Kosh

    Can fireflies glow in colors other than yellow or green?

    Reply
  100. Akil Bloodsaw

    Oh wow.

    Reply
  101. Colin D

    God is the best scientist and his creation shines just like the fire flies.

    Reply
  102. zane

    I always wondered how it works

    Reply
  103. Christopher Jones

    Bioluminescence is cool.

    Reply
  104. David McFadden

    Wow!. This video was very interesting. I love how you explained how fireflies glow!. Also here is my question. What is the golden power on a surface when a firefly is crushed under a force?

    Reply
  105. Annalea Dean

    Are there fireflies that don’t have bioluminescence

    Reply
  106. Emma Nicole Porras

    I ‘ve aways loved fireflies I have seen them in Sardinia, Italy but it was amazing to learn how they are able to make lights!

    Reply
  107. Aniston Stoll

    Pretty fascinating!

    Reply
  108. Alex

    how are the fireflies glow are they different color me to ive never seen a fireflies

    Reply
  109. Benjamin Ragsdale

    this was very interesting to watch

    Reply
  110. Joseph Mcknight

    Wow, what a great lesson. I don’t see many fireflies where I live? I was listening to how the fireflies used oxygen to light their bodies. Will there be more fireflies in rural areas without so much politician or does that play a factor. Also, do fireflies fly around during the day and we just can’t see them or are they nocturnal insects?

    Reply
  111. Zoah Steiger

    Firefly’s are very pretty when it gets warm out I go out side and see how many I can catch!

    Reply
  112. Logan Gilmore

    i’ve always wondered how fireflies glow
    Thank you for this lecture

    Reply
  113. Clay Burch

    Are there any other animals that are biolumenescent.

    Reply
  114. Liam Asselin

    The first time I saw fireflies was in Tennessee, they were awesome.

    Reply
  115. Damon Cox

    Firefly video is amazing

    Reply
  116. Abby Dynek

    Very interesting! I love fireflys in the summer

    Reply
  117. havanna wyckoff

    we have fireflies in our yard during the summer

    Reply
  118. Makenna Beckman

    I loved this video! It helped me learn about fireflies

    Reply
  119. Jesse Moore

    Bioluminescence has always been an topic I’ve been curious about. It’s nice finally having a better understanding about it.

    Reply
  120. Brady tatom

    My mom told me stories of catching them when she was a kid and putting them in a jar

    Reply
  121. Aviel Hammond

    I liked this Science video on fire flies.

    Reply
  122. Jameson

    I liked the chemical reaction when you recreated the bioluminescence .

    Reply
  123. Kenzleigh Hanson

    I didn’t know that fireflies were so i Interesting.

    Reply
  124. Blossom

    I love science!❤

    Reply
  125. Blossom

    I love fireflies but I’ve never seen one before

    Reply
  126. Ally

    Were I live there’s no firefly’s cause I live in the city

    Reply
  127. Juliann

    That experiment was really amazing I have not seen anything like that before!

    Reply
  128. zoe

    wow is that cool video or what?

    Reply
  129. Cooper Moser

    About how many fireflys are on our earth?

    Reply
  130. Daniel Max Swemmer

    Fireflies are amazing!!

    Reply
  131. Ethan

    I never knew what “in the lime light” meant. The fact that fireflies can control the oxygen is fascinating.

    Reply
  132. flowerbloom

    ur the best
    ;]

    Reply
  133. Serena E Work

    Do fireflies sleep during the day?

    Reply
  134. joseph

    I had never learned something so amazing than what I just learned right now.Thank you for the video

    Reply
  135. Kirsten

    This is so cool!

    Reply
  136. Lourdes

    I wish I knew how to catch a firefly. I’m so excited to see what is next in science live!

    Reply
  137. Isabella Wilds

    omg shes a singer woooow shes so good

    Reply
  138. Ranulph zapf

    I love fireflies!

    Reply
  139. Isaiah Smith

    Robots having the ability to feel what they touch win old be much different, and bioluminescence is cool.

    Reply
  140. Jose Madera

    so cool

    Reply
  141. Kenzie

    So cool the song made me cry its so sad!

    Reply
  142. rachael

    what do fireflies like.

    Reply
  143. Jayden A.

    I love fireflies. I catch them every summer. It is cool knowing how they flash.

    Reply
  144. Jared A

    This is so cool. I didn’t know that oxygen was a part of bioluminescence.

    Reply
  145. Mark

    I don’t know how to catch a firefly.

    Reply
  146. Sue T.

    I love this. that song made me cry. I made a poem over fireflies.
    through the darkness,
    when life is full of sadness,
    there is a light,
    that glows with all it’s might,
    that night,
    it held on tight.
    That light,
    were fireflies.
    No matter the lies,
    or the darkness of your life,
    remember you are the fireflies light.

    Ok, I am going to admit that that was not a good poem, but when I write I write from the bottom of my heart.
    Remember you are the light of the fire fly!!

    Reply
  147. Sabella kane

    I love to catch fire flies in the summer.

    Reply
  148. Jordan Benson

    on the song that’s my math teacher Ms. Rebecca

    Reply
  149. khaleesyroseferguson

    Help I am crying from the song.

    Reply
  150. Jordan Benson

    I’ve never seen a firefly in my life

    Reply
  151. bonnie wade

    very cool cant wait to see whats next

    Reply
  152. Jamee

    Love it so much ❤️❤️❤️😍😍😍🤩🤩🤩🤩
    Love fireflys

    Reply
  153. Cassie

    I love thissssss. I need to see it live. And the “I don’t like to be in the limelight” is very relatable.

    Reply
  154. Jennie honey

    what this song name, cool!

    Reply
  155. Hope

    This was really cool. My favorite part was learning about the phrase “I don’t like to be in the limelight.”

    Reply
  156. Cason Patterson

    I think bioluminescence is so neat. Fireflies are cool to watch. It is amazing in the ocean too. I hope to see that one day.

    Reply
  157. Kimberly Teasley

    too me it was amazing!!!!!!

    Reply
  158. Kaitlynn Teasley

    that was AWSOME, to me….

    Reply
  159. Hunter Teasley

    That was Very COOL to me too

    Reply
  160. Baker

    The song Fireflies was so beautiful, and inspiring!
    Fireflies are amazing creatures, yes.

    Reply
  161. Beckett

    Wow! This was very cool to me.

    Reply
  162. Paris Carter

    This is so cool thank you for this

    Reply
  163. Ethan Theron

    I learned about bioluminescence in sea animals last year.

    Reply
  164. Elijah

    2025!!

    Reply
  165. Tristan Adams

    Whos watching in 2025? but I like thisone

    Reply
  166. Charles Wright

    Fireflies are really fascinating creatures, they are just so cute with those black bead like eyes and their glowing is really cool. I sometimes wish I had the ability to be Bioluminescent, especially when navigating my house at night when my eyes aren’t adjusted to the dark.

    Reply
  167. Ericka Nord

    I love fireflies

    Reply
  168. Chloe

    Something about bio-luminescent things tickle my brain.Its so nice to look at.

    Reply
  169. Elaina

    30:16 secret of the firefly😂😂😂😂 so funny!

    Reply
  170. Phoebe Rodrigue

    loved it

    Reply
  171. Marshall

    I learned that fire flies produce light through a chemical reaction!

    Reply
  172. Ella

    The song video made me cry.😢

    Reply
  173. Ella😋

    Love the video it made me laugh!😂 I love the frameable secret pajet!!😂

    Reply
  174. sallie

    it made me cry the song did

    Reply
  175. Lucas Ramnarine

    Cool song Ms. Rebecca.

    Reply
  176. Jaxon

    I love the video. I think it is so dang cool. Y’all should watch, it will be a great experience.

    Reply
  177. Thoryn Culp

    This is the best.

    Reply
  178. Giovanni Caputo

    It was cool

    Reply
  179. Phoebe Rodrigue

    I love the song so much but it was sad.

    Reply
  180. Rosetta Stutzman

    haha my math teacher sings the song lol😁😁

    Reply
  181. Aaron Stutzman

    Awesome i love it so cool😱 🤯😎🤩😶😲 awesome

    Reply
  182. Ella Stutzman

    this is so cool🤯😱

    Reply
  183. Ella Stutzman

    this is so cool

    Reply
  184. Lorelai Jones

    cool

    Reply
  185. brenden

    I learn that fire flies make light from a chimerical reaction

    Reply
  186. Angel Colson

    That was really cool where did you get the stuff for the project because I want the stuff so I can try this project

    Reply
  187. Alex Steffensmeier

    This is so cool i love learning about fire flies fun fact my favorite element on the periodic table is carbon dioxide!!!!!

    Reply
  188. Alex Steffensmeier

    This is so cool i love learning about fire flies fun fact my favorite element on the periodic table is carbon dioxide

    Reply
  189. Johnathan Higgs

    I learn fire fly uses carbondixoide shine light

    Reply
  190. SHELBY WATKINS

    I love Dr. Pajet’s outfit and hair in this episode.

    Reply
  191. Isabel Durr from South Dakota

    I learned a lot about fire flies!!

    Reply
  192. Phoebe Rodrigue

    I will cry.

    Reply
  193. Phoebe Rodrigue

    The song is so sad why is it so sad good song just sad?

    Reply
  194. : )

    The blue color was so pretty.

    Reply
  195. Aphmau

    I like this video because it’s super pretty and I love the way it glows it’s so pretty🤩🤩🤩🤩🤩🤩

    Reply
  196. nathan

    very very coooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooool

    Reply
  197. Lydia Hales

    I love that song!

    Reply
  198. Zoe Babcock

    the fact that you see the guy checkeing his bills and they or past due his son came over to come to cheer him up and he smiled ;] well he was streesd

    Reply
  199. AT

    Is there anything else that glows with bioluminescence??🤔🤔🤔🤔🤔🤔🤔🤔

    Reply
  200. Brian

    Fireflies are super duper cool.

    Reply
  201. brandon ewell

    that look like the stuff you see in Florida’s water a night

    Reply
  202. Kaitlynn

    how do fireflies glow?

    Reply
  203. ☆°ɞɛʟʟɑ°☆

    Oh my goodness! This one is my favorite one so far. I wish and hope you guys will make more like this some day.

    Reply
  204. Haley Alexis Johnson

    how many fireflys do yall think are in the world

    Reply
  205. Roslyn Fletcher

    so amazing I almost died.
    (X-X)

    Reply
  206. Kassidy Postema

    If fireflies can control their lighting and the speed to attract the females then the ones that are older, not blink as fast as the younger ones possibly?

    Reply
  207. Julian and juliana Marron

    It almost made me cry and think stuff in the past 😢 🥺🥺🥺😔😌😌😌

    Reply
  208. Julian

    Gosh that was so awesome

    Reply
  209. Louise Johnnson

    Wow what a cool video

    Reply
  210. Abigail Gomez

    this video was AMAZING!!!!!

    Reply
  211. Jaykob

    I love this video and that song in end almost they end had me crying

    Reply
  212. Jaykob

    when will u guys do Another live

    Reply
  213. Newton ชิติพัทธ์

    Wow. I did learn a lot about how fireflies glow.

    Reply
  214. Summer

    I really enjoyed this. Thank you.

    Reply
  215. Skylar phillips

    how long do fire flies live

    Reply
  216. Jayde R

    Just freaking AMAZING!! I think this has been my fav video yet!!!!!!!!!

    Reply
  217. AJ

    Nice intro :0

    Reply
  218. AJ

    very cool :)))

    Reply
  219. Hailey

    I love science it is the most coolest thing I’ve ever seen in my entire life

    Reply
  220. Tyler

    this firefly experiment is the best one yet truly a work of art keep up the good work guys. also there is one question i have: how IN THE WORLD do you get the stuff for this experiment cause i need it. thank you

    Reply
  221. Tyler

    i love the firefly song

    Reply
  222. Joann

    Love the song

    Reply
  223. Angel Brobbey

    I love the firefly song so inspiring. This is my favorite video.

    Reply
  224. charles

    loved the firefly song

    Reply
  225. charles

    really cool to learn how firefly’s light up bio luminescence. does the alge work the same way

    Reply
  226. Aaron

    Who discovered bioluminescent,s first also great song

    Reply
  227. Katie Miller

    It’s so cool to be able to see this kind of stuff. In the public school I went to they rarely did any labs, let alone something this cool!

    Reply
  228. Samuel Riek

    Yoo I love this one!

    Reply
  229. desmond

    OMG, OMG, OMG!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Reply
  230. Nataliana Karlson

    This is awesome, how long did your experiment glow for?

    Reply
  231. Mia

    Nice Goofy voice.Ha ha!

    Cool! I love Fireflies.

    Reply
  232. kyree

    How was light made.

    Reply
  233. ☁Olivia☁

    I loved this >•<!!!! the neon blue color was gorgeous!

    Reply
  234. Coralynn Puska

    this is amazing im glad I do acellus!

    Reply
  235. Zion

    That was amazing

    Reply
  236. Jackson King

    That will be my best song I ever hear

    Reply
  237. Nguyễn Thu Huyền

    It’s sooooooooooooooooooo amazing
    I like Dr john

    Reply
  238. Lam Khanh Tran

    It’s sooooooooooooooooooooooooooooo amazing!!!

    Reply
  239. Olive Wenger

    Cool

    Reply
  240. Bella😏

    I was pleasantly surprised by the new information I received. It’s one of the reasons why I hold Dr. B in high regard. He consistently shares honest and valuable insights that may not be readily available in traditional educational settings. This is why I hold Acellus in high esteem, as it has provided me with valuable knowledge. I also would love it if Dr. B makes a class with pajet Monet.

    Reply
  241. Sadie Small

    I love fireflies they where every where when i was a kid

    Reply
  242. Andrew McHan

    I loved to figure out how fireflys light up.

    Reply
  243. Shoshanna

    i love this science video. Fireflies are super cool.

    Reply
  244. maylee

    love this vid! I would had love to seen it live ! so cool! !(^^)! !(^^)!

    Reply
  245. maylee

    love this vid! I wish I could’ve seen it live ! so cool! !(^^)! !(^^)!

    Reply
  246. Kaliyah

    Very Interesting experiment, I learned a lot.

    Reply
  247. Michael

    This was really helpful for me because I’ve always wondered how fireflies glow, so thank you dr. Billings, and miss paj’ey for doing this firefly video

    Reply
  248. Sofia G

    Thank you very much for the video and lots of useful information .

    Reply
  249. D. NGOC

    Wow! The light is so bright! Now I know how fireflies made themself glow. This is amazing!

    Reply
  250. Brooklyn

    that was very cool with the firefly experiment it was very cool and I loved the song

    Reply
  251. Damien Flowers Pettus

    It was interesting to me

    Reply
  252. Sherif Ray

    Do firefly’s fly glow sometime’s in the day time?

    Reply
  253. jaxxon

    haha pajets light went out but the alien fixed it haha

    Reply
  254. Janat bajwa

    The firefly experiment really took part in representing how bio-luminescent works. I would love watching more experiments like these!

    Reply
  255. Colton Lindsey

    I liked the bright blue lights, they looked cool!

    Reply
  256. Ramla Mohamed

    This live experiment soo cool!!

    Reply
  257. Sarai Ponce

    This experiment had my mind blown! When I was in public school they never did anything like this.

    Reply
  258. Caleb L.

    how are the sensors going to be used in the real world?

    Reply
  259. caysen

    really cool video but it glowed blue

    Reply
  260. Max Pula

    robots will never have the same touch as us humans

    Reply
  261. Azilyn Bosch

    The last experiment was so cool! I’ve never seen anything like it!

    Reply
  262. sophie

    I learned about the chemicals poured together and it glowed! It was bright! This is my first Science live.

    Reply
  263. Elijah T.

    This would have been super fun to watch live.

    Reply
  264. Jean

    I’ve always been a big fan in bio-luminescent and always wanted to know how it worked. The firefly experiment helped with that, so I’m thanking Dr. Billings for that wonderful presentation. This is one of the many scientific experiments that had been added to my science knowledge. 😀😆

    Reply
  265. Ruth

    i find bio-luminescent things really cool and i would have loved to see it live

    Reply
  266. Ruth

    I find bio-luminescent things very cool and I found it very cool when it was poured into the spiral

    Reply
  267. Ruth

    I find Bio-luminescent stuff very cool and amazing and it was really awesome to see it going down the spiral

    Reply
  268. Elijah

    I Think That bio-luminescent things are really cool and i wish i could’ve seen this live

    Reply
  269. Libby

    I’ve always found Bio-luminescent stuff very interesting so i thought this episode was very cool! especially when the chemicals were poured down the spiral!

    Reply
  270. logan

    this firefly experiment is the best one yet truly a work of art keep up the good work guys. also there is one question i have: how IN THE WORLD do you get the stuff for this experiment cause i need it. thank you and goodnight/day 🙂 😉 :0

    Reply
  271. logan

    cooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooool i NEED to see this live

    Reply
  272. Briana

    This is my FAVORITE one! I remember when I watched this live. The glowing firefly experiment is so cool!

    Reply

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