2. Second Grade

3. These lessons are designed to reinforce: Sol 2.4 Life Processes 2.4The student will investigate and understand that plants and animals undergo a series of orderly changes in their life cycles. Key concepts include a)some animals (frogs and butterflies) undergo distinct stages during their lives, while others generally resemble their parents

4. Teacher Page It is suggested that students have science journal or a notebook to take notes in. It is critical for students to use writing skills to explain answers. When you see this symbol students should use their journals. Please take time to discuss possible answers. Click to go to next screen.

5. Life Cycle Of The Frog

6. Write one sentence for each picture, describing the change in each stage. Life Cycle of a Frog 1 2 34 5 Use words from the list to help you with your writing. legs adult egg tadpole tail lungs gills frog Answers next...

7. 1 2 34 5 The life of a frog begins when the tadpole hatches from the egg. Stage 1 Stage 2

8. 1 2 34 5 Stage 3 A tadpole has gills and swims in the water. Legs begin to develop.

9. 1 2 34 5 Stage 3 Stage 4 After a period of time the tadpole has fully developed legs and lungs.

10. 1 2 34 5 Stage 4 Stage 5 The tail is being absorbed and the frog is able to spend more time on land.

11. 1 2 34 5 Stage 5 The frog is fully developed and can live on land or in water. Now Onto the Butterfly!

12. Life Cycle of the Butterfly Write one sentence to describe each stage of the life cycle. Use these words to help you with your writing: Egg Larva Pupa Adult Caterpillar Chrysalis Butterfly