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  • MUSIC

  • >> FIRST WE'VE GOT THIS IS ACTUALLY A HAIRCARE PRODUCT.

  • IT'S 20 VOLUME, IT'S HYDROGEN PEROXIDE, LITTLE STRONGER THEN

  • WHAT YOU MIGHT FIND IN THE DRUGSTORE.

  • WE ARE GOING TO PORE THIS INTO -- I'M GOING TO PUT MY GOGGLES

  • ON HERE, BECAUSE IF IT GETS INTO YOUR EYES

  • IT'S NOT REAL GOOD.

  • >> WE'RE IN TROUBLE.

  • >> YEAH.

  • >> THERE YOU GO.

  • >> OKAY.

  • >> USE SAFETY FIRST.

  • >> I'M READY.

  • >> SO I'M GOING TO PROBABLY PUT ABOUT THREE QUARTERS OF

  • A CUP IN THERE.

  • ALL RIGHT.

  • SO THIS IS FOR THE GROWN-UPS TO DO.

  • ALL RIGHT.

  • THEN, AN INTERESTING INGREDIENT.

  • WE TAKE THE GOGGLES OFF.

  • YEAST.

  • DRY YEAST.

  • BELIEVE IT OR NOT.

  • THIS IS GOING TO BE OUR CATALYST.

  • HYDROGEN PEROXIDE IS H202.

  • SO IT'S LIKE WATER BUT WITH AN EXTRA OXYGEN.

  • WE ARE GOING TO TRY TO GET THAT OXYGEN TO COME OUT.

  • SO, ONE TABLESPOON OF YEAST INTO THIS LITTLE CUP HERE.

  • THERE YOU GO.

  • >> THERE IS THE YEAST.

  • THERE YOU GO.

  • >> AND THEN TWO TABLESPOONS -- THREE TABLESPOONS OF WATER

  • INTO THAT.

  • THERE WE GO.

  • TAKE NOTES AT HOME IT'S ON THE WEBSITE.

  • >> ALL RIGHT.

  • >> THERE YOU GO.

  • STIR THAT UP.

  • >> OKAY.

  • >> ALL RIGHT.

  • NOW, WHILE YOU ARE DOING THAT, I'M GOING TO ADD A LITTLE BIT

  • OF DISH SOAP IN HERE.

  • ALL RIGHT.

  • BECAUSE WE GOT TO HAVE THE DISH SOAP.

  • AND LET'S SEE, LET'S GO FOR RED FOAM.

  • >> COLOR.

  • >> LITTLE COLOR.

  • THERE WE GO.

  • SO, HYDROGEN PEROXIDE, DISH SOAP, AND THEN SOME YEAST.

  • NOW IT'S GETTING A LITTLE -- >> IS THAT HOW WE WANT IT?

  • >> WELL IT'S KIND OF CHUNKING UP ON YOU THERE?

  • >> YEAH.

  • >> THAT IS ALL RIGHT, SO WE ARE GOING TO TAKE, OUT

  • THE EXTRA HERE.

  • >> OKAY.

  • >> WE ONLY NEED THE STUFF THAT IS ALL WATERY.

  • THERE WE GO.

  • >> OKAY.

  • ALL RIGHT.

  • NOW WE GOT THE WARTY PART.

  • ALRIGHT.

  • SO ON THE COUNT OF THREE WE ARE GOING TO TRY

  • TO GET EVEN MORE FOAM.

  • COUNT OF THREE YOU ARE GOING TO PORE THAT IN THERE.

  • >> I'M GOING TO PORE THAT IN THERE.

  • >> SO YEAST.

  • YEAH, WE USE OUR LITTLE FUNNEL THERE.

  • AND HYDROGEN PEROXIDE AND A LITTLE DISH SOAP, GO FOR IT.

  • LET'S SEE IF WE CAN GET A LITTLE MORE FOAM THIS TIME.

  • >> OOH!

  • >> THERE WE GO.

  • >> OH MY GOSH!

  • >> NOW THAT IS PRETTY GOOD.

  • LOOK AT THAT.

  • >> I LOVE THIS.

  • >> THAT IS GOOD TELEVISION RIGHT THERE.

  • >> LOOK AT THAT.

  • QUITE A BIT MORE FOAM ON THIS ONE.

  • >> QUITE A BIT.

  • >> AND THIS IS ACTUALLY -- THESE LITTLE TINY BUBBLES

  • ARE FILLED WITH OXYGEN.

  • INTERESTINGLY ENOUGH.

  • THAT IS GREAT, BUT I GOT TO TELL YOU, FOR ME, IT'S

  • NOT ENOUGH FOAM.

  • ALL RIGHT.

  • SO THAT IS GOING TO GET US TO OUR LAST EXPERIMENT.

  • >> OKAY.

  • >> NOW YOU NEED TO PUT ON YOUR GOGGLES FOR THIS.

  • >> GET THE GOGGLES.

  • ALL RIGHT.

  • NOW WE'VE TAKEN HYDROGEN PEROXIDE, BUT WE HAVEN'T DONE

  • THE 3 PERCENT THAT YOU GET FROM THE DRUGSTORE, WE HAVEN'T

  • DONE THE 6 PERCENT THAT WE GET AT THE HAIR SALON.

  • WE ARE DOING 30 PERCENT HYDROGEN PEROXIDE.

  • WE'VE GOT THAT IN HERE WITH OUR DISH SOAP AND OUR COLOR.

  • ALL RIGHT.

  • NOW I'M NOT CRAZY, SO I'M GOING TO STEP BACK FROM HERE,

  • WHILE YOU DO THIS.

  • >> WHILE I DO IT.

  • THANKS.

  • >> SO WE ARE GOING TO COUNT TO THREE, YOU ARE GOING TO POUR

  • THAT IT THERE AND THEN YOU ARE GOING TO STEP BACK.

  • >> OKAY.

  • >> ALL RIGHT.

  • YOU READY?

  • >> I'M READY.

  • >> ALL RIGHT.

  • KEEP YOUR EYE ON THE GIGANTIC FLASK.

  • HERE WE GO, READY?

  • ONE, TWO, THREE, FOUR, STEP BACK.

  • OH, LOOK AT THAT.

  • >> OH MY GOD!

  • [LAUGHTER].

  • >> NOW THAT IS SCIENCE.

  • >> I LOVE THAT!

  • WOW, LOOK AT THAT.

  • [LAUGHTER].

  • YOU SEE IT STEAMY?

  • >> YEAH.

  • >> YEAH, THAT'S THE -- IT'S AN EXOTHERMIC REACTION

  • SO IT CREATES HEAT TOO.

  • >> OH MY GOD!

  • >> THIS ONE YOU CAN'T DO AT HOME.

  • THESE TWO YOU CAN AND WE'LL HAVE THE INSTRUCTIONS

  • ON THE WEBSITE FOR THAT.

  • MUSIC

MUSIC

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Operation of videos Adjust the video here to display the subtitles

B1 UK hydrogen peroxide peroxide yeast foam hydrogen soap

Science Bob's Crazy Foam Experiment

  • 65 2
    wendyhui posted on 2017/03/08
Video vocabulary