3. Start having a “science” mind

4. See anything wrong with this?

6. Be careful about using data found on line
Fact check: The claim that 500 million straws are used by Americans is an estimate above the ranges of more rigorous studies. Market research firms put the figure between 170 million and 390 million per day,
Source: One market research firm, Freedonia Group, determined that the nation used about 390 million straws a day last year. Another, Technomic, puts the number closer to 170 million, though that count excludes some types of straws.

7. Diving into the scientific method (related directly to your inquiry project)