1) This material make us to measure volumes. It is called... a) beaker b) dropper c) graduated cylinder 2) I want to separate the sand and the water doing a filtration. This is a suitable material? a) filter funnel b) evaporating dish c) erlenmeyer flask 3) In a bottle of alcohol appears this pictogram. What does it indicate? a) corrosion b) flame c) gas cylinder 4) This pictogram is very dangerous for human health. What does it mean? a) exploding bomb b) exclamation mark c) health hazard

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