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To Begin With
The Purposes of This Book
Some suggestions on the teaching of elementary general science
28 other sections not shown
acid aluminium angle apparatus Attach bacteria balance ball balloon beam blotting paper blow boiling bottle bottom bulb candle carbon cardboard centimetres centre centrifugal force cm in diameter cm long coil coloured copper cork cover diagram dish dry cell edge electric experiment Fasten Fill flame flask funnel glass jar glass tube hard water heat hold hole inside iron knitting needle lamp layers leaf length of glass lens light lime water magnet materials metal metre minerals mirror nail needle observe paper pencil piece pins Place plants plaster of Paris plate pole pressure pupils Remove rheostat rocks rubber band rubber tube screw Secure sheet shown side simple soap soda straw soil solder solution specific gravity steel wool stick stopper string strip surface surface tension teachers temperature test tube thermometer Unesco vibrating weight wind wire wood