Today we performed an investigation using BTB solution. Think about what you observed as you exhaled. Explain what you observed and draw a conclusion based on what you know about respiration and the BTB solution.
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BTB
 


Hayley
11/30/2012 9:00am

I think it changed color because we breath out and made it bubble up changed blue, green and, yellow. That is what I think. We done a Science thing in class with Mrs.Graham

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Presley
11/30/2012 9:00am

I think it changed colors because. It is BTB and when we got our straw we blowed bubbles for 5 seconds and it started to change green and it was Exhale. Cause we breath out for Exhale.

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Sydney
11/30/2012 9:00am

The BTB change color because we exhale in the straw and it change blue from greeen, yellow to green again.

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Kylie
11/30/2012 9:00am

We blew on the straw.It begin changing colors. Then we blew on it again.It changed colors again.This is what the solution is.

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Tyler s
11/30/2012 9:00am

The BTB turned blue to yellowish green because we blew in it.In our air is carbon dioxde.

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talyn
11/30/2012 9:01am

Let me tell you why it changed color.It changd color because it has carbon dioxiae in it.

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connorJ
11/30/2012 9:01am

I think the btb changed color because when I exhale into the straw it changed colors because the bubbles.

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Courtney
11/30/2012 9:01am

We blew in it and it cangede cololrs to blue to green and it tenres more green.

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Macy
11/30/2012 9:02am

I know how the BTB changed! I know because when I exhale it went from blue to lime green! When I exhale it changed!

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Courtney
11/30/2012 9:41pm

{ I love it macy!!!!!! }

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Chloe P
11/30/2012 9:02am

We exhaled carbon dioxide into the BTB and it changed colors to green and then dark green.

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SONNY
11/30/2012 9:02am

We did some inhaleing and exhaling into bromothymolblue IT CHANGE COLORS!

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Elijah
11/30/2012 9:03am

When we started it was blue.So then we blew in it.Then we blew one more time.But it didn't change.

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EmmaB.
11/30/2012 9:04am

Let me tell you how the btb changed colers. We exhaled into the btb. It turnd into. Blue, green, and light green. That is how the btb changed.

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Emma K.
11/30/2012 9:08am

The solution changed colors because when I breathe out carbon dioxide and helped the solution change colors to blue then green and last but not least it will turn yellow.All you do is blow into a straw and then the solution will change colors but remeber to blow
hard as you can to make the solution turn blue green and yellow and now you can try yourself and see the expeirament for you and your friends and learn more:]

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sara
11/30/2012 2:17pm

Yes you should try it but don`t drink it!!!!!!!!

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Evie
11/30/2012 9:14am

The btb turn colors like blue,dark blue,lime green,and yellow. Why did it chagen colors is we exhale carbon dioxide for it to change colors.

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Abby
11/30/2012 2:07pm

First, It was blue we blew bubbles for five seconds. Next, When you blew for five seconds it started to turn a green color that was a pretty green. Then, We blew for five more seconds and it turned yellow.

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sam
11/30/2012 2:09pm

the btb had change color. when you blow carbon dioxidein the botel. carbon dioxide chang color,s

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Chloe.T
11/30/2012 2:12pm

It changes by the air and carbon dioxide and we blew bubbles into it so it would change to diffent corlors and it was cool to see the btb change into diffent corlors.

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student
11/30/2012 2:13pm

more carbondioxide into the BTB i't started tochang colers ! Blue to green to yellow! more and more i't might change bacb to blue. From Jonathan

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Evan
11/30/2012 2:13pm

The liquid changes when we blew carbondioxide in the liquid with a straw and make bubbels and we did it for five seconds and the color changes to green and then yellow and green and thats my conclusion.

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Kamryn
11/30/2012 2:13pm

It changed because Carbon Dioxide.Carbon Dioxide changed the coloer by air!

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sara
11/30/2012 2:14pm

I think it changed colors because we blew carbon dioxide in it. And the more we blow the more the BTB changes colors. Sorry guys but its time to go so PEACE OUT YO!!!!!!!!

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Christina
11/30/2012 2:14pm

I know it changed colors because I blow carbon dioxide into the BTB. But when I exhale into it turns green. When I exhale into the BTB agen it turns yellow. Its because of the carbon dioxide.

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Josh
11/30/2012 2:15pm

The BTB changed BTB changed as we exhale and it change .Colers by carbon dnoside

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Marissa
11/30/2012 2:15pm

I think it changed colors because carbon dioxide is light you can not see it. So it made the blue a light green.

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Hunter
11/30/2012 2:16pm

The BTB changes colors when you blow it with your straw it will chang to lite green when you blow harder it turns to lite yellow.

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Ivanna
11/30/2012 2:16pm

I think the liquid changed colors because it had carbon diotie and that is what it need to change colors. You might think somthing that is diffrint but that is what I think .Itchange blue,green and then it turn yellow. I got to go see you latter by-by.

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katelynn
11/30/2012 2:17pm

win we blowy in the btb cup we inhae it trn green.

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destiny
11/30/2012 2:17pm

when we blew into the liguid it chaged the color because we used carbon dioxide and bubles

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madison
11/30/2012 2:20pm

Win i blow it trn green ther it trn yellow.

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jimmar
11/30/2012 2:20pm

I think it changes color because we blow in to the tob then we gave the BTB cabon dioxide.

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destiny
11/30/2012 2:21pm

When we blew into the liguid it chaged the color because we used carbon dioxide and bubles.

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Alexis
11/30/2012 2:23pm

When I blew in the BTB it terd to yellow. The more carbon dioxie I blew in it changed lightr.

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christopher
11/30/2012 2:25pm

the BTB chaged colors because we blowe couondioxide in to the contaner.

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trenton
11/30/2012 2:25pm

What cased the BTB to chang colers you aske.Well the carbon Dioxide makes the BTB to bubule that is how it changs colers

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coby
11/30/2012 2:25pm

The carbon dioxide made it yellow greenish.i never new that it would do that.so when iput the straw in blowed it 5seconds









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12/03/2012 10:15pm

Sounds like your students know alot about BTB! I'm sure this experience will reinforce carbon dioxide is the gas we breath out. Glad to see your class use the materials I sent. I'll send more!!
N2Science

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Kristy Graham
12/04/2012 8:40pm

Thanks for the containers and BTB. The students love watching the liquid change "magically" and learn the science behind it.

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Elijah
01/24/2013 9:26pm

It was so AWSOME!!!

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Jon
02/20/2013 1:44pm

THIS is the best website iv'e been to in my life . to Mrs Graham from Jonathan

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