Life Cycles

Grade 3 · Science · Page 1 of 2

Name Date
DIRECTIONS: Every living thing is born, grows, has young and dies, but the journey differs.
Metamorphosis: the animal changes shape completely. A caterpillar and a butterfly are the same animal.
Put each life cycle in order. Number the boxes 1 to 4.
AnimalStages, in the wrong orderCorrect order (write the numbers)
Butterflychrysalis  ·  caterpillar  ·  adult butterfly  ·  egg
Frogfroglet  ·  egg (spawn)  ·  adult frog  ·  tadpole
Chickenchick  ·  adult hen  ·  egg  ·  young hen
Bean plantflower  ·  seed  ·  seedling  ·  adult plant with pods
  1. A kitten looks like a small cat. A tadpole looks nothing like a frog. Which of these animals goes through metamorphosis?
  2. Why is it useful for a tadpole to live in water and an adult frog to live on land? Think about food and safety.

Life Cycles — continued

Grade 3 · Science · Page 2 of 2

Inherited or learned?
Some things come from your parents. Some you pick up as you go. Write I for inherited or L for learned.
7.
eye color
8.
riding a bike
9.
a dog's breed
10.
speaking Spanish
11.
height
12.
a bird's song
13.
being able to swim
14.
the shape of your ears
  1. Two puppies from the same litter have different colored fur. How is that possible if they have the same parents?
TRY THIS AT HOME — grow a bean
Put a dried bean on damp cotton against the side of a clear jar. Draw it every two days for two weeks. Why do roots come before leaves?
day 2
day 4
day 6
day 8
day 10
day 12
day 14