Catherine Posted October 4, 2011 Share Posted October 4, 2011 I love homeschooling!! It is SO much fun or me to do these kinds of things at home with him. I am also very happy that I happened on a demonstration that was well-thought out and used easily located ingredients. So often my "experiments" don't work and that's discouraging. Quote Link to comment Share on other sites More sharing options...
Matryoshka Posted October 4, 2011 Share Posted October 4, 2011 I love homeschooling!! It is SO much fun or me to do these kinds of things at home with him. I am also very happy that I happened on a demonstration that was well-thought out and used easily located ingredients. So often my "experiments" don't work and that's discouraging. Isn't that a fun one? Strawberries work great for this too. Who'd've thought that such a cool experiment could be so straightforward and need no special equipment? That one really makes me feel like I did "science" (much more than making polymer goo with glue and laundry starch...) Quote Link to comment Share on other sites More sharing options...
tammyw Posted October 4, 2011 Share Posted October 4, 2011 Oh you can't just leave us hanging like that! Tell us about it. How'd you do it? Quote Link to comment Share on other sites More sharing options...
chepyl Posted October 4, 2011 Share Posted October 4, 2011 Yes.....how?!?! Quote Link to comment Share on other sites More sharing options...
freerange Posted October 4, 2011 Share Posted October 4, 2011 I am also very happy that I happened on a demonstration that was well-thought out and used easily located ingredients. To post that & not include a link is just mean!:tongue_smilie: :bigear: Quote Link to comment Share on other sites More sharing options...
Matryoshka Posted October 4, 2011 Share Posted October 4, 2011 (edited) To post that & not include a link is just mean!:tongue_smilie: Don't know what she used, but I used the instructions at this link. Watch the video - the instructions are a bit different, more explicit and easier to follow than the print instructions at the same site. Also, watching her made it easier for me to do the demonstration with flair with a bunch of kids. Wait... that's the link I used, but where's the video?? Edited October 4, 2011 by matroyshka Quote Link to comment Share on other sites More sharing options...
Michele B Posted October 4, 2011 Share Posted October 4, 2011 :hurray: for the experiment, but the link sent me to Google maps! Quote Link to comment Share on other sites More sharing options...
nukeswife Posted October 4, 2011 Share Posted October 4, 2011 Don't know what she used, but I used the instructions at this link. Watch the video - the instructions are a bit different, more explicit and easier to follow than the print instructions at the same site. Also, watching her made it easier for me to do the demonstration with flair with a bunch of kids. Wait... that's the link I used, but where's the video?? when I click on your link it takes me to google maps :confused: Quote Link to comment Share on other sites More sharing options...
Matryoshka Posted October 4, 2011 Share Posted October 4, 2011 :hurray: for the experiment, but the link sent me to Google maps! Whoops! My Firefox has a bug that if I open too many tabs it stops putting the current link in the address window - and my kids were distracting me and I didn't notice it was the wrong one! :tongue_smilie: I fixed the link. :) But the video is still AWOL. :glare: The printed instructions are still there, though. Quote Link to comment Share on other sites More sharing options...
Shelly in VA Posted October 4, 2011 Share Posted October 4, 2011 I have not tried this, but here is a link that describes banana DNA extraction, and it seems very straightforward: http://biology.about.com/od/biologylabhowtos/ht/dnafromabanana.htm As for the "science" involved in making oobleck, I understand where you are coming from. Mixing up different goos can seem no different from opening a jar of play-doh! ;) But a few years ago, when we were doing a similar science demo, my chemist bil got very excited that I was doing that with my kids, and he told me to explain to them things like: polymers in real life can range from slippery nylons to bouncy balls to solid skateboards; polymers are often like huge, long chains of paperclips that can swivel on themselves, and that layers of them slide around over and under each other the same way paperclip chains would; etc. It made me realize that I need to be sure to give some scientific explanation to demos we do, especially when they are things that don't immediately look like science. I've never looked at oobleck the same way since... That being said, my kids still enjoy those projects primarily for the playtime and mess involved, but I am hoping they get a little science at the same time. Thanks for posting about the banana - we have never extracted DNA, but we are going to try this today!! Shelly Quote Link to comment Share on other sites More sharing options...
Matryoshka Posted October 4, 2011 Share Posted October 4, 2011 Aha aha aha!!! I found the video. It was bugging me! Apparently the link I had bookmarked is not the same one I used the instructions from. :confused: At any rate, the link above is the right site with the video (I promise it's not google maps again :tongue_smilie:) - I find it much easier to follow a video for something like this than the printed instructions! i love how cheerily she mashes the strawberries (no blender needed!) Quote Link to comment Share on other sites More sharing options...
HootyTooty Posted October 4, 2011 Share Posted October 4, 2011 Aha aha aha!!! I found the video. It was bugging me! Apparently the link I had bookmarked is not the same one I used the instructions from. :confused: At any rate, the link above is the right site with the video (I promise it's not google maps again :tongue_smilie:) - I find it much easier to follow a video for something like this than the printed instructions! i love how cheerily she mashes the strawberries (no blender needed!) Thank you! Quote Link to comment Share on other sites More sharing options...
Catherine Posted October 4, 2011 Author Share Posted October 4, 2011 http://www.pbs.org/wgbh/nova/teachers/activities/pdf/3214_01_nsn_01.pdf I printed the instructions, and then ds could also write out the answers to the three simple questions at the end. Hope this is helpful. FYI, the 91% isopropyl alcohol is available at Walgreen's. Their store brand is very inexpensive. Quote Link to comment Share on other sites More sharing options...
Mommy22alyns Posted October 4, 2011 Share Posted October 4, 2011 Thank you for this! I've been wanting to extract some DNA for ages! Quote Link to comment Share on other sites More sharing options...
Parker Martin Posted October 4, 2011 Share Posted October 4, 2011 That's awesome! Quote Link to comment Share on other sites More sharing options...
nrself Posted October 4, 2011 Share Posted October 4, 2011 I just saw this in one of the books we brought home from the library. 'Cept it was for spinach DNA. Mad Scientist's Notebook - Very quirky! http://www.amazon.com/Mad-Scientists-Notebook-Dangerously-Experiments/dp/1600590098/ref=sr_1_1?ie=UTF8&qid=1317764487&sr=8-1 Quote Link to comment Share on other sites More sharing options...
BlessedMom Posted October 4, 2011 Share Posted October 4, 2011 How fun!! Thank you for sharing! Quote Link to comment Share on other sites More sharing options...
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