Since we visited King Tut on Tues, We did science on Thurs (I had already bought the spinach and needed to use it up quickly!)
The experiment was to see PHOTOSYNTHESIS in ACTION!
First the prep work: punching holes out of organic spinach (note: see my pretty school wall? I will do a post all about it soon!!)
|E2 Punching Leaves, L1 waiting for his turn|
|N4 Punching Leaves|
|N3 Tapping the bubbles out of the vacuum on our second try.|
|It was tricky to get them out of the syringe into the water....|
|2nd time was a success! We got all of the circles to sink when|
they were deprived of oxygen, then about half of the circles to
rise to the top after they made oxygen under the lamp
|The lab sheets included in the CSH book didn't work out for us, |
because I had to do all the writing x 4... So we are going to draw
pictures in our Nature journals instead.
L-R: L1, (10 yrs) E2 (8 yrs) N3 (6 yrs) N4 (4 yrs) I sketched and he colored
Thing I learned:
I assembled everything while they were playing, and did the experiment while the twins were napping, which made the whole thing smoother than the last science project!
You really need to pay attention to detail with this one. We had to do the whole project twice, because I missed the part about holding your finger over the tip of the syringe, while pulling it down to create a vacuum. The neat part about it was seeing the wonder in their eyes when it DID work the second time!