Thursday, March 12, 2015

TBT: The Carrot Conclusion

So this week we're going back to our Carrot on a String experiment to show you our results.

So, in case you missed the set up, here's what we did (you can go back to the first post for full details):




We made sure to water the carrot several times a day, and to move it to a warmer location at night in case things got too cold that close to the window. Each day Erik checked the carrot to measure its progress. Finally, on about day four this is what we had:
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Wait for it.....
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 Yum, right? So, good job to my Grandma, who hypothesized that it would rot. She is the winner!
Now, as any good scientist would, we didn't let this stop us. We analyzed where our experiment may have gone wrong, designed a few improvements, and gave it another shot.

I was worried from the beginning that coring out the top of the carrot like we did would remove the part of the carrot that we were hoping to have grow. So, this time we did two carrots, one with only half of the top cored out, and the other with a very shallow hole cored out of the entire top (so basically the same as our first experiment, just with less water holding capacity). I was hoping that one (or both) of these methods would create enough of a space to hold water while still leaving something left to grow.

 These were strung up in the window and given the same treatment as our first carrot. We waited several days, with Erik checking our progress each day. By day four this was our result:
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Did you really think I'd just show it to you?
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So, I guess this whole project was a great way for Erik to get introduced to the scientific method, as well as to learn that not all experiments turn out as you had hoped they would.
Maybe my kid is weird, but somehow we didn't feel this experiment lived up to this statement from the original source: "In a few days your kids will love the results." Maybe most kids like rotting carrots, who knows.

1 comment:

  1. Is the water just there to add curiosity and something to test? Does it speed up the rotting? I feel like the carrot would rot anyway without the water or hole. Maybe not? Now I want to test that out, bahaha.

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