Animal Life Cycles

Grade 3 Science Worksheet - Challenge Me

NameDate

Circle the answer.

1.
A butterfly has four stages: egg, larva, pupa, adult. A grasshopper has only three. Which stage does the grasshopper not have?
- egg
- adult
- pupa
- nymph
2.
Why does a grasshopper nymph not need a pupa stage?
- it never becomes an adult
- it is too big to fit in a pupa
- it already looks like a small adult and just grows
- it changes inside an egg instead
3.
Frogs and salmon both lay eggs in water. What does this tell you about their young?
- their young start life in water
- their young live inside the parent
- their young can fly right away
- their young start life on land
4.
A pond dries up in early summer. Which frog stage would be harmed most?
- tadpoles, because they need water to breathe
- frog eggs laid on dry soil
- froglets, which live only in trees
- adult frogs, which breathe with gills
5.
A ladybug larva and an adult ladybug look very different. How can a scientist show they are the same kind of animal?
- compare their colors on one day
- count the legs on the adult only
- watch the larva become a pupa, then an adult
- check which one is bigger
6.
Which pair of animals both go through four stages: egg, larva, pupa and adult?
- butterfly and ladybug
- butterfly and grasshopper
- grasshopper and dragonfly
- frog and sea turtle
7.
Mosquitoes lay eggs in standing water. Why do towns ask people to empty buckets of rainwater?
- it stops mosquito larvae from growing there
- it gives adult mosquitoes water to drink
- it helps more mosquito eggs hatch
- it keeps the buckets from freezing
8.
A sea turtle hatchling has the same body shape as an adult. A tadpole does not look like an adult frog. Which statement is true?
- only the frog changes its body form as it grows
- only the sea turtle changes its body form
- neither one grows bigger
- both change their body form completely
9.
A chicken can live about 8 years. An adult mayfly lives about 1 day. What do both life cycles still include?
- hatching, growing, and making young
- a pupa stage inside a chrysalis
- living in water as adults
- growing for the same amount of time
10.
Look at the butterfly life cycle. Which missing stage does not eat at all?
- larva
- nymph
- tadpole
- chrysalis

Animal Life Cycles

Answer Key - Grade 3 Science Worksheet - Challenge Me

Circle the answer.

1.
A butterfly has four stages: egg, larva, pupa, adult. A grasshopper has only three. Which stage does the grasshopper not have?
- egg
- adult
- pupa
- nymph
2.
Why does a grasshopper nymph not need a pupa stage?
- it never becomes an adult
- it is too big to fit in a pupa
- it already looks like a small adult and just grows
- it changes inside an egg instead
3.
Frogs and salmon both lay eggs in water. What does this tell you about their young?
- their young start life in water
- their young live inside the parent
- their young can fly right away
- their young start life on land
4.
A pond dries up in early summer. Which frog stage would be harmed most?
- tadpoles, because they need water to breathe
- frog eggs laid on dry soil
- froglets, which live only in trees
- adult frogs, which breathe with gills
5.
A ladybug larva and an adult ladybug look very different. How can a scientist show they are the same kind of animal?
- compare their colors on one day
- count the legs on the adult only
- watch the larva become a pupa, then an adult
- check which one is bigger
6.
Which pair of animals both go through four stages: egg, larva, pupa and adult?
- butterfly and ladybug
- butterfly and grasshopper
- grasshopper and dragonfly
- frog and sea turtle
7.
Mosquitoes lay eggs in standing water. Why do towns ask people to empty buckets of rainwater?
- it stops mosquito larvae from growing there
- it gives adult mosquitoes water to drink
- it helps more mosquito eggs hatch
- it keeps the buckets from freezing
8.
A sea turtle hatchling has the same body shape as an adult. A tadpole does not look like an adult frog. Which statement is true?
- only the frog changes its body form as it grows
- only the sea turtle changes its body form
- neither one grows bigger
- both change their body form completely
9.
A chicken can live about 8 years. An adult mayfly lives about 1 day. What do both life cycles still include?
- hatching, growing, and making young
- a pupa stage inside a chrysalis
- living in water as adults
- growing for the same amount of time
10.
Look at the butterfly life cycle. Which missing stage does not eat at all?
- larva
- nymph
- tadpole
- chrysalis