Name: ______________________________ Date: ______________________________ Period: ___________ Observations vs. Inferences and Quantitative vs. Qualitative Observations Look at the picture below and read each of the following statements about the picture to decide if they are Observations or Inferences. 1. 2. The giant squid weighs 275 kilograms. Inference The giant squid likes to eat humans. Inference 3. The giant squid has more than one tentacle (leg). 4. The giant squid swims fast because it has long tentacles. Differentiate between each of the statements as either OBSERVATIONS or INFERENCES. 5. The bottle of soda “hisses” when I take off the cap. ________________ 6. The “hissing” sound occurs because gas is escaping.________________ 7. The banana is rotting because it is old. _______________________ 8. The banana has brown spots._________________________ 9. The water in the graduated cylinder is pink. ___________________ 10. The pink dishwashing soap dissolved in the water. _______________ Qualitative v Quantitative Part 2: . Read the following observations about the picture below and decide if they are Qualitative Observations or Quantitative Observations. Write down your answer below the statement. 11. The male platypus weighs an average of 2.0kg. Quantitative 12. The platypus has “ankle spurs” that produce enough poison to kill a small dog, but not a human. Qualitative observation 13. The platypus has two eyes, four limbs, one tail and one beak. 14. The platypus is endothermic, maintaining a body temperature of about 32 °C (90 °F). Please classify the following statements as Qualitative Observations or Quantitative Observations. 15. Sandra added 4 drops of vinegar to the baking soda. ______________________ 16. The liquid in the graduated cylinder was thick and yellow and smelled putrid. ________________________ 17. The leaves on the maple tree were brown and fragile at the end of October. ________________________ 18. The planet Uranus is extremely cold on its surface. _____________________ 19. There are twelve marshmallows left in the bag. ________________________ 20. Jessica’s sunburned arms are bright red and starting to blister. _________________________ Part 3: Enrichment Observations Inference (What is a possible explanation or conclusion?) 1. Marie is not in school today. 2. Marie had a runny nose yesterday. 3. Marie’s little brother Tony had the flu last week. Observations 1. Nick did not do as well on the test as he usually does. 2. Nick is a huge Patriots football fan. 3. The Patriots had their first regular season game last night. 4. Nick keeps yawning in class and Inference (What is a possible explanation or conclusion?) resting his head on the desk.