. Which properties are more useful in determining the identity of an unknown substance: intensive or extensive? Explain. Type your answer here: Intensive properties because they are sunject to change . Write a hypothesis based on observations and scientific principles. Type your answer here: What are the identites of the unknown metals Experimental Methods What tools did you use to collect your data? Type your answer here: a scale, silver, tundsten and platinum, ruler Describe the procedure that you followed to conduct your experiment. Type your answer here: I took each one and wighed them Data and Observations Record your observations. Type your answer here:Platinum weighed 72.4 grams and was 1.5 cm, Tungsten weighed 35.4 grams and was 1.5 cm. Unknwon #1 weighes 112.6 grames and is almost 2 inches, unkown metal #2 is 111.7 grams and is a little over 2 inches, unkown metal #3 weighes 2.7 grams and .5 cm Conclusions