47 Simple doubleconvex lenses can makegood magnifiers Some transparent bottlesand jars bend light and magnify printThey may also reverse the print Water ina jar or a drop of water can also serve a ID: 516922
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47 Optics: An EducatorÕs Guide With Activities in Science and Mathematics EG-2000-10-64-MSFCSimple Magnifiers Simple double-convex lenses can makegood magnifiers. Some transparent bottlesand jars bend light and magnify print.They may also reverse the print. Water ina jar or a drop of water can also serve asa magnifier.¥ photographic slide frame or thinpiece of cardboard with a 1-inchsquare hole¥ transparent tape¥ small transparent sauce orcondiment bottles¥ jars of different shapes¥ water¥ old magazine or newspaper AB Objective Science and Mathematics Standards Science and Mathematics Standards Materials The student will experiment withmagnifiers.Science as InquiryPhysical ScienceProblem SolvingCommunicationConnectionComputation/EstimationMeasurement 48 \b\t\n\t \f\r Optics: An EducatorÕs Guide With Activities in Science and Mathematics EG-2000-10-64-MSFC Procedures Observations, Data, and Conclusions 1.Place a piece of transparent tapeacross the opening of the slide orcardboard. Wet one finger and placeone small drop of water onto the tape.2.Position the water drop above thenewspaper or numbers. Can youread the letters or numbers?3.Continue to experiment. Use a bigdrop of water. Use a tiny drop ofwater. Hold the drop very close tothe letters and words. Move thedrop slowly away from the words.Keep experimenting.4.Now place the edges of the bottlesclose to the words. Do all of thebottles magnify? Do some of themmagnify? Do they magnify better ifyou put water in them? Experimentwith bottles of all shapes. Do somejars of water reverse letters?Water Drop Magnifier1.What did you see when you lookedthrough the drop of water?2.Could you read the letters? Did theletters and numbers appear larger?3.How did you focus the water dropmagnifier?4.Which water drop magnified more,the large drop or the small drop?Why? Hint: How does the size ofthe water drop effect the way lightis bent or refracted?5.What shape bottle or jar magnifiesbest?6.What parts of bottles magnify best?7.Do these bottles or jars magnifybetter with water in them?8.Why do bottles magnify objects? Cardboard orSlide Frame Transparent