Life Cycles of Animals — Answer Key
Part A: Trace the Words
Trace each word carefully by following the dotted lines.
1. grow
2. adult
3. larva
4. cycle
5. pupa
6. egg
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A hen lays an egg that hatches.
Hens lay eggs, and a baby chick grows inside until it is ready to hatch out, so egg fits the sentence.
2. A caterpillar is also called a larva.
Before a caterpillar turns into a butterfly, it is in the larva stage, which is just another name for caterpillar.
3. A frog goes through a life cycle.
Frogs change in clear steps from egg to tadpole to adult, and that pattern of stages is called a life cycle.
4. A butterfly is the adult stage.
A butterfly is the fully grown form, which makes it the adult stage of the life cycle.
Part C: True or False?
Read each statement. Circle True or False.
1. A chick grows into a hen or rooster.
True False
True. A baby chicken hatches as a chick, and as it grows it becomes either a hen or a rooster.
2. A pupa can fly around and eat.
True False
False. A pupa stays still inside a chrysalis while it changes; only the adult butterfly can fly and eat.
3. Frogs and butterflies both start as eggs.
True False
True. Both frogs and butterflies begin their life cycles as tiny eggs before changing into other stages.