BIOLOGY EXPERIMENTS CHILDREN

paramecium,on theotherhand,never changes shape. Itlooks verymuchlike the soleofa shoe, and itdartsswiftlyaroundthe water. A part ...

aresoftandthey do nothave internalskeletonsorbackbones,they are called invertebrateanimals. Naturallytheseanimalsneedsomemeansof ...

oyster. The oyster quickly snaps shutits double shell and holds it firmly closed. The muscles of the oyster are verystrong, so t ...

STUDYING AGRASSHOPPER- ATYPICAL INSECT Materials: A largejar,a square of cheesecloth, a rubberband-anda grasshopper. You can cat ...

The grasshopperis a good example ofan insect, for it has all of the characteristicsof this type of animal. When you pick up a bu ...

Somecommoninsects thathave allofthe above characteristicsare the housefly, fruit fly,prayingmantis, beetle, lady bug, bee, drago ...

After several days the mothcaterpillarwill pull itself outofa hole at one end ofthe cocoon. Ifit is a butterfly, the chrysalis c ...

Why the firefly's light does not produceheat-asdootherlights-isstill one ofnature'smysteries. -, Fireflies, sometimes called "gl ...

youngGreekpeasantgirl namedArachnehadtheaudacityto challengethe goddessAthenato aweavingcontest. YoungArachnewasmostskillful, an ...

HOW AFISH BREATHES Materials: A few gills from the head of a freshlycaughtfish, a dish of water, a medicinedropper, yourhandlens ...

Thebackboneprotectsthe fish's very delicate andimportantspinal cord. The spinal cord extends from thebrainalongthe back of the f ...

Place the dish on the stage ofyourmicroscopesothatthe tail isunder the low power objective. Observe. Keep the fish tail wet bypu ...

Let these test tubes standin good light,butnotindirectlight, for several days. You will observe: The lone snail in the first tes ...

Biologistscall thedevelopmentoffrog eggsintofrogs a metamorphosis. The processissimilarto thetransformation ofa caterpillarintoa ...

Changethewatertwice weekly to keep it clear and clean. Feed yourturtlessmall bitsofraw fish,groundraw meator liver. Buy a canofa ...

Examinetheopenedshellandthecontentsof the egg withyourhandlens. Examinethe unlaid yolks too. You will observe:Theunlaid chickene ...

outershell isporoussothatair can passthroughit to thepapermembrane. The outershell also provides protectionfor all theinternalpa ...

STUDYING THE STRUCTURE OF ACHICKEN LEG Materials: One leg from an uncookedchicken, a handlens, a sharp paringknife. Follow this ...

Part IV: THE HUMAN ANIMAL Itis exciting to pick up an oyster shell as you walk along the beach and to realizethatthis shell was ...

THE HUMAN MOUTH Materials:Amirror. Follow thisprocedure: Openyourmouthwide and examineyourteeth. Noticeespeciallytheirdifferent ...