This is what I did: First I got a cup and put quite a bit of food coloring in it. I peeled the leaves carefully off the rose and then I put the white rose in and left it for 24 hours.
This is what happened: When I checked the rose in the morning the whole rose turned blue! Because I chose blue food colouring. I also saw blue colouring where we had peeled the leaves off and in the sepals (I found out what this part of the flower is called from this website. Here's the information I used...)
This is what I learned: I learned that when roses suck up the water, they suck it up through their stems and it comes out in the flower. The stem is kind of like a straw and when a flower is in the garden the stem takes the water from the ground and takes it to the top. I had to take the leaves off because if I didn't take them off, all the leaves would turn blue first and it wouldn't go to the flower petals as clearly because it would go through the leaves too. This made the colour more obvious.
I noticed that one petal didn't turn blue. I think this might be because we didn't put it in for long enough. We did it for approx 12 hours which might not have been long enough. Or it could have been that that petal wasn't working properly or was dead. What do you think?
Wow, thats a really cool experiment, i'd like to try that sometime :)
ReplyDeleteI think that was a cool experiment you done wish i could do that i never knew that a flower was like a straw . Keep up the good work.
ReplyDeleteI never new that flowers can suck up food colouring I only thought they could suck up plant colouring plus I like the colour blue
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