No wonder I had high percent error all the time. D:
But actually, those look familiar too. I'm pretty sure we used something like that for Bio. And we could set how much mL of fluid we wanted to soak up too...
*can't remember*
Yeah I used those in Chem too though they weren't really good but they were cheap and our school is poor........... We can't afford paper but we can afford 10 plasma screen tvs good job
though they weren't really good but they were cheap and our school is poor........... We can't afford paper but we can afford 10 plasma screen tvs good job 
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