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Published byKarin Freeman Modified over 8 years ago
THE LIFECYCLE OF A BUTTERFLY MS. STEIN SECOND GRADE
2ND GRADE STATE STANDARDS SCIENCE ( Life Sciences ) b. Students know the sequential stages of life cycles are different for different animals, such as butterflies, frogs, and mice.
EGG STAGE The tiny eggs reveal a variety of shapes under a microscope - they are laid by the female on a plant, and then are abandoned by the mother. Around 5 days later, a tiny wormlike creature will hatch.
CATERPILLAR STAGE The newly emerged caterpillar has biting jaws, six real legs plus a number of extra 'prolegs' but no compound eye. It gets to work quickly devouring its food source and shedding its skin in order to grow. The skin is then falls off to reveal the chrysalis or pupa. Some caterpillars spin a cocoon first but most just fasten themselves to a plant with a silken thread.
PUPA STAGE Although the pupa outwardly looks like it is at a state of rest, inside it is a bubbling with activity as the caterpillar is literally liquefied, then reassembled, over about two to three weeks, into a very different creature. Some species hibernate in this state, although the transforming chemistry is suspended for most of the winter period in this case.
BUTTERFLY STAGE The first evidence of the butterfly being ready to emerge is the translucency of the pupa skin showing the coloring of the wings beneath. When the skin of the pupa splits, the limp, damp butterfly crawls out - now with compound eyes, six legs, and proboscis for feeding. A little warming in the sun and its damp wings are ready to fly off to feed and mate.
LIFE CYCLE OF A BUTTERFLY Step 1: An adult butterfly lays an egg on a leaf. Step 2: The egg hatches into a caterpillar. Step 3: The caterpillar forms the chrysalis or pupa. Step 4: The chrysalis matures into a butterfly.
CAN YOU FILL IN THE STAGES? adult - the winged adult which will mate and reproduce. Adults do not eat, they only sip liquids through a straw-like proboscis. larva - (also called the caterpillar) this stage hatches from the egg. The larva spends its time eating, growing and molting (shedding its outgrown exoskeleton). pupa - the stage in a butterfly's life when it is encased in a chrysalis and undergoes metamorphosis into the adult, winged form. egg - the tiny orb laid by a female butterfly. Eggs are usually laid on the underside of leaves - they hatch into larvae.
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