Copper Sulphate (CuSO4)
Sodium Chloride (NaCl) (Salt)
Sugar (CnH2nOn)
Course ground Pepper
Test tubes
First we put 1/4 measure of Copper Sulphate into a test tube and added 2cm of water. Then we shook the test tube gently, and left it in the test tube rack. We did the same with the others, and a few minutes later we had a look at them. Here are the results:
Name of Chemical Did it dissolve?
Copper Sulphate Yes
Sodium Chloride Yes
Calcium Carbonate No
Sugar Yes
Course ground Pepper No
Observations
When the Copper Sulphate dissolved, it turned the water slightly blue.
When we shook the Calcium Carbonate, it looked like it dissolved, but a few minutes later, when we looked at them again, we saw that it had settled at the bottom of the test tube.
I may write more stuff that I do for work on my blog, so keep a lookout.
4 comments:
I did a nice table, and the post has messed it up!!!! GRRRR
abi,you are three yrs younger than me,and you know lloooaaaddsss more than me!!!!!!!!!!
the chemical formulars (however ya spell it) were copied and pasted off wikipedia.
now thats more like it:)
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