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Ch. 2 Lesson 2 How do animals grow & change?
Life Cycle Stages of Animals Birth  born or hatch Growth get bigger Development  change into adults Reproduction  produce ...
Life cycle of insects  (monarch butterfly) <ul><ul><li>E gg   L arva   P upa   A dult </li></ul></ul>
<ul><li>covered in hard coating (chrysalis) </li></ul><ul><li>caterpillar </li></ul>Butterfly life cycle activities
egg larva pupa adult Butterfly Life Cycle
Frog Life Cycle 4. adult 3. growing  tadpole 2. tadpole  (larva) 1. egg
mammal life cycle Have less changes in their life cycle than insects or amphibians Develop inside mom’s body Babies drink ...
Draw, color and label a picture of each of the following life cycles: <ul><li>Insect (butterfly) life cycle </li></ul><ul>...
Review Time
Life Cycle Stages of Animals Birth  born or hatch Growth get bigger Development  change into adults Reproduction  produce ...
What is the purpose of the pupa? <ul><li>To protect the butterfly as it changes into an adult. </li></ul>
List the sequence of steps in a butterfly’s life cycle. Use the signal words  first ,  next ,  then , and  finally . <ul><...
Before a frog can live on land, how must its body change? <ul><li>A frog must grow lungs so that it can breathe air and po...
How is a mammal’s life cycle different from a frog’s or butterfly’s life cycle? <ul><li>A mammal develops inside its mothe...
Think about how mammals care for their young.  Describe why this kind of care might be helpful for most mammals. <ul><li>Y...
Name and circle the correct phase in the butterfly’s life cycle. It is also known as a caterpillar. It’s body changes a lo...
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3rd Grade Ch. 2 Lesson 2 How do Animals Grow & Change

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Transcript of "3rd Grade Ch. 2 Lesson 2 How do Animals Grow & Change"

  1. 1. Ch. 2 Lesson 2 How do animals grow & change?
  2. 2. Life Cycle Stages of Animals Birth born or hatch Growth get bigger Development change into adults Reproduction produce young Death lives come to an end
  3. 3. Life cycle of insects (monarch butterfly) <ul><ul><li>E gg  L arva  P upa  A dult </li></ul></ul>
  4. 4. <ul><li>covered in hard coating (chrysalis) </li></ul><ul><li>caterpillar </li></ul>Butterfly life cycle activities
  5. 5. egg larva pupa adult Butterfly Life Cycle
  6. 6. Frog Life Cycle 4. adult 3. growing tadpole 2. tadpole (larva) 1. egg
  7. 7. mammal life cycle Have less changes in their life cycle than insects or amphibians Develop inside mom’s body Babies drink mom’s milk
  8. 8. Draw, color and label a picture of each of the following life cycles: <ul><li>Insect (butterfly) life cycle </li></ul><ul><li>Frog life cycle </li></ul><ul><li>Mammal life cycle </li></ul>
  9. 9. Review Time
  10. 10. Life Cycle Stages of Animals Birth born or hatch Growth get bigger Development change into adults Reproduction produce young Death lives come to an end
  11. 11. What is the purpose of the pupa? <ul><li>To protect the butterfly as it changes into an adult. </li></ul>
  12. 12. List the sequence of steps in a butterfly’s life cycle. Use the signal words first , next , then , and finally . <ul><li>First , an egg is laid. </li></ul><ul><li>Next , a larva, or caterpillar, hatches. </li></ul><ul><li>Then , the larva spins a covering around itself and becomes a pupa. </li></ul><ul><li>Next , a butterfly crawls out. </li></ul><ul><li>Finally , adult butterflies mate and lay eggs. </li></ul>
  13. 13. Before a frog can live on land, how must its body change? <ul><li>A frog must grow lungs so that it can breathe air and powerful legs to propel itself forward. </li></ul>
  14. 14. How is a mammal’s life cycle different from a frog’s or butterfly’s life cycle? <ul><li>A mammal develops inside its mother, is born looking like its parents, and does not change a lot in its life cycle. </li></ul><ul><li>A frog or butterfly develops in an egg that the mother lays, hatches, and changes a lot in its life cycle. </li></ul>
  15. 15. Think about how mammals care for their young. Describe why this kind of care might be helpful for most mammals. <ul><li>Young mammals are fed and protected until they learn how to live on their own and grow large enough to protect themselves. </li></ul>
  16. 16. Name and circle the correct phase in the butterfly’s life cycle. It is also known as a caterpillar. It’s body changes a lot, growing wings and jointed legs. It’s life cycle begins. The adult butterfly comes after this stage. It is able to lay eggs. It is covered in a hard coating (chrysalis).
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