Insects are the animal group children handle most and understand least. Everyone has picked up a beetle. Almost nobody can say what makes it an insect and a spider not.
This sheet is built so the answer is available on the page.
The non-insects are on the list on purpose
SPIDER, TICK, MITE, SCORPION, CENTIPEDE and MILLIPEDE all appear
alongside the real insects. None of them are insects.
That is the activity. After the search, have students split the list into insects and everything else, then work out the rule they used.
The rule is six legs and three body parts. A spider has eight legs and two parts. A centipede has too many to count. Once a student has the rule they can apply it to anything they find outside, which is worth more than memorizing which is which.
Expect a fight about whether a LADYBUG is a beetle. It is. The name is the
problem, not the animal.
The life cycle needs the big grid
LARVA, PUPA, COCOON, NYMPH and MOLT are short enough for any size.
CHRYSALIS needs a 10x10 or larger and METAMORPHOSIS needs the 14x14.
Put them in order after the search: egg, larva, pupa, adult. Then ask where
NYMPH goes, and it does not fit the sequence at all, because grasshoppers and
crickets skip the pupa stage and hatch as small versions of the adult.
Two different life cycles, one word list, and students find the anomaly themselves.
Cocoon and chrysalis are not the same
Almost every children’s book uses these interchangeably and they are different things.
A moth caterpillar spins a COCOON out of silk and wraps itself in it. A
butterfly caterpillar spins nothing: it sheds its skin one last time and the
CHRYSALIS underneath is its own body, hardened.
Both words are on the larger grids. It takes thirty seconds to say and it is the kind of correction students enjoy, because they get to know something the book got wrong.
The anatomy words
ANTENNA, THORAX, ABDOMEN and MANDIBLE can appear at any size.
EXOSKELETON, at eleven letters, needs the 12x12 or 14x14.
EXOSKELETON is the one that pays off. The skeleton is on the outside, which is
why an insect has to MOLT to grow, which is why you find empty cicada shells on
tree trunks. Three words on the same sheet that explain each other.
Which size
The 8x8 and 10x10 for a general activity with younger children. The 12x12 or 14x14 for anything tied to a unit, since the anatomy and life cycle words are all long ones.