Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why...
-
Upload
walter-ford -
Category
Documents
-
view
221 -
download
0
Transcript of Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why...
![Page 1: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/1.jpg)
Questions you may have asked yourself:
•Why do people suggest that chemicals are bad for us?
•Why should I study chemistry?
•Why do scientists so often say “more study is needed”?
•Why do scientists bother with studies that have no immediate applications?
•Can we change lead into gold?
![Page 2: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/2.jpg)
![Page 3: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/3.jpg)
Model
![Page 5: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/5.jpg)
![Page 6: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/6.jpg)
Carbon Monoxide Man
![Page 7: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/7.jpg)
![Page 8: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/8.jpg)
![Page 9: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/9.jpg)
![Page 10: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/10.jpg)
![Page 11: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/11.jpg)
![Page 13: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/13.jpg)
![Page 14: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/14.jpg)
![Page 15: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/15.jpg)
SI Unit Definitions from the National Institute of Standards and Technology (NIST)
![Page 16: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/16.jpg)
The IPK – International Prototype Kilogram
![Page 17: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/17.jpg)
LeftRight
![Page 18: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/18.jpg)
01_T06.JPG
![Page 19: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/19.jpg)
Testing a Scientific Claim – Thinking Critically about a Claim
FLaReS Test (a modification of a more substantial approach):
•Falsifiability: Can the claim be proven to be either true or false?
•Logical: Arguments supporting the claim must be logical – if any premises in the argument are false, the claim cannot be validated
•Reproducible: If based on scientific evidence, the evidence must be reproducible.
•Sufficient: The evidence provided must be adequate to support the claim. • The burden of evidence rests with the claimant• Extraordinary claims demand extraordinary evidence• Evidence based on authority and/or testimony is never adequate
•A claim must pass all tests to be considered valid.
![Page 20: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/20.jpg)
Example of FLaReS
A psychic claims he can bend a spoon using only the powers of his mind. However, he says he can do so only when the conditions are right; there must be no one with negative energy present. Evaluate this psychic’s claim using the FLaReS test
Falsifiable?
Logical?
Reproducible?
Sufficient?
![Page 21: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/21.jpg)
![Page 22: Questions you may have asked yourself: Why do people suggest that chemicals are bad for us? Why should I study chemistry? Why do scientists so often say.](https://reader030.fdocuments.in/reader030/viewer/2022033103/56649f1b5503460f94c300b2/html5/thumbnails/22.jpg)