WONDER #1821: Why Do Drink Lids Have Extra Holes?
Question 1 of 3
The second, tiny hole in plastic coffee cup lids allows liquids to flow more smoothly through the large hole because it allows what to enter the cup?
- air
- sand
- water
- coffee
Question 2 of 3
In addition to allowing air to enter a cup, the second, tiny hole in plastic coffee cup lids also allows what to escape from inside the cup?
- sand
- water
- coffee
- steam
Question 3 of 3
During which decade were great strides made in coffee cup lid design?
- 1880s
- 1920s
- 1950s
- 1980s
Check your answers online at https://wonderopolis.org/index.php/wonder/why-do-drink-lids-have-extra-holes.