BIOLOGY EXPERIMENTS CHILDREN

( '\ BIOLOGY EXPERIMENTS FOR CHILDREN ETHEl HANAUER ...

81OLOGY EXPERIMENTS fOR CHILDREN []H[LHANAUER 1\100,b.u",w-. , '"_ , _ 1:*:> <IIoIol ",on".-n"' "'1"";. "....1_no-' l.Orrl ...

T, i:.C""(~/ \I(,I\i BIOLOGY Experiments for Children Formerlytitled BIOLOGYFORCHILDREN Writtenand Illustrated by EthelHanauer - ...

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CONTENTS PARTI: THE NATUREOF ALL LIVINGTHINGS............ 7 Using Your Microscope ...Looking at Newsprint under a Microscope... ...

PARTIII:THEWORLDOFANIMALS........................ 57 Making a Hay Infusion to Study Protozoa... Observing Protozoa... Making a C ...

Part I: THE NATURE OF ALL LIVING THINGS When you thinkof"livingthings,"youprobablythink first of the animals and people you are ...

unsuspected animals scooting through the water or oozing lazily along, accordingto their nature. You will also be able to see th ...

USING YOUR MICROSCOPE Before you beginyourventure into the world ofliving things, you will need oneimportantskill; you will need ...

Now move the curved side of themirroruntil it catches the light and directs it up into the tube, throughthe eyepiece orocularint ...

largerthanit appearsto your unaided eye. Underhigh power youwon'teven see the"e"as a letter! Ithas been magnified so many timest ...

The hairs onyourhead havetheirroots in the lower layer of the scalp. Therootis actuallya collectionofcells in the scalp from whi ...

Follow this procedure:Puttwo drops ofwaterin the middle ofa clean glass slide. Put a fish scale in thewaterandholdin place with ...

Use your low power objective and get the specimen in focusjustat the edge of the cork slice where it is likely to be the thinnes ...

All the functions thatare necessary to keep aplantalive areperformed individually in each cell and coordinatelyby all the cells ...

Putthe slideunderthemicroscopeand observeunderlow power first,and thenunderhigh power. You will observe: Large brick-shapedcells ...

0& :-,..<0:... 0'. 4' r::;;;/ 11 The inside liningofyour cheek is made up of a thin tissuecomposedof living cells. (Your ...

Part II: THE WORLD OF PLANTS By now you have examined the simpleststructuralunits of living things, cells; you know somethingabo ...

andreplantthemselves-byflying totheirnewhomeson"wings,"bysticking to the coats ofanimalsand incountlessotheruniqueway". You will ...

GROWING ONE-CELLED MICROSCOPIC ORGANISMS- BACTERIA OF DECAY Materials:A pieceofrawpotato(peeled), a few seedsofeither beans or p ...