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Evidence 3

Four 7th graders draw their understanding of a science experiment using chloroplasts. Decide if their drawings are correct and learn from the results.

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Evidence 3

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  1. Evidence 3 After reading the method of this study, four 7th graders drew what the scientists had put in each jar. For each of the next four drawings, decide if the students were right or wrong. NEXT

  2. Here’s the first drawing. Is this drawing correct? dark light 25 g of chloroplasts 25 g of chloroplasts NO YES (If this is your first time on this page, write your answer in 1.)

  3. Here’s the second drawing. Is this drawing correct? dark light Carbon dioxide meter Carbon dioxide meter 50 g of chloroplasts 50 g of chloroplasts NO YES (If this is your first time on this page, write your answer in 2.)

  4. Here’s the third drawing. Is this drawing correct? dark light Carbon dioxide and Oxygen meter Carbon dioxide and Oxygen meter 50 g of chloroplasts 50 g of chloroplasts NO YES (If this is your first time on this page, write your answer in 3.)

  5. Here’s the fourth drawing. Is this drawing correct? dark light Carbon dioxide and Oxygen meter Carbon dioxide and Oxygen meter 25 g of chloroplasts 25 g of chloroplasts NO YES (If this is your first time on this page, write your answer in 4.)

  6. CORRECT! Nice Job! There is something missing. You know what that is, don’t you? If not, double check the text to be sure. Click next to check the next student’s drawing. BACK NEXT

  7. TRY AGAIN!! There is something missing. Read the methods again to find out what is missing, and try again. BACK

  8. CORRECT! There were 3 errors! Did you see all 3? If not go back and look for the others. Then click next. BACK NEXT

  9. TRY AGAIN!! There are 3 errors! Read the methods again to find out what the errors are, and try again. BACK

  10. CORRECT! There were 2 errors in this picture. Did you find both of them? If not go back to the text and try to find both errors. Then click next. BACK NEXT

  11. TRY AGAIN!! There are two errors. Go back and look at the methods and check the picture again. This picture is missing the air tight lid and should only have 25g of chloroplasts in each jar. BACK

  12. CORRECT! Great Job! This picture is correct! Click next to see the results of this experiment. BACK NEXT

  13. TRY AGAIN!! Read the methods again then go back and look closely at the picture. BACK

  14. Results!Click next to see the results come in. BACK NEXT

  15. The jar has been in the light for 10 minutes Carbon Dioxide Oxygen High light Normal Carbon dioxide and Oxygen meter 25 g of chloroplasts Low 20 30 10 Minutes BACK NEXT

  16. The jar has been in the light for 20 minutes Carbon Dioxide Oxygen High light Normal Carbon dioxide and Oxygen meter 25 g of chloroplasts Low 20 30 10 Minutes BACK NEXT

  17. The jar has been in the light for 30 minutes Carbon Dioxide Oxygen High light Normal Carbon dioxide and Oxygen meter 25 g of chloroplasts Low 20 30 10 Minutes BACK NEXT

  18. The jar has been in the dark for 10 minutes Carbon Dioxide Oxygen High dark Carbon dioxide and Oxygen meter Normal 25 g of chloroplasts Low 20 30 10 Minutes BACK NEXT

  19. The jar has been in the dark for 20 minutes Carbon Dioxide Oxygen High dark Carbon dioxide and Oxygen meter Normal 25 g of chloroplasts Low 20 30 10 Minutes BACK NEXT

  20. The jar has been in the dark for 30 minutes Carbon Dioxide Oxygen High dark Carbon dioxide and Oxygen meter Normal 25 g of chloroplasts Low 20 30 10 Minutes BACK NEXT

  21. What differences do you see from the data from the two jars? What do you conclude from this study? Carbon Dioxide Dark Light Oxygen Carbon Dioxide High Oxygen High Normal Normal Low Low 20 30 10 20 30 10 Minutes BACK NEXT Minutes

  22. See the Results Again!! BACK

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