01017 2200205 4500001002100000005001500021035002000036008004100056020001500097041000800112082001100120084001700131100001200148245005700160260003500217300001200252520049500264990002600759990002600785INLIS00000000000115820221112091454 a0010-0520001158221112 | | eng  a0078256437 aeng a551.46 a551.46 GLE l0 aGlencoe1 aLaboratory Activities :bThe Water Planet /cGlencoe aNewyork :bMc Graw Hill,c2007 axv,32p. aScience is the body information including all the hypotheses and experiments that tell us about our enviroment. All people involved in scientific work use similar methods for gaining information. One important scientific skill is abilitiy to obtain data directly from the environment. Observations must be based on what actualy happens in the form from which valid conclusions can be draw. These conclusions must be such that other scientists can achieve the same results in the laboratory. a11743/MKRI-P/III-2009 a11743/MKRI-P/III-2009