useless trivia: What Word Means: Applied Oil?

Questions

As much as 50 gallons of Maple ---------- are used to make a single gallon of Maple Sugar.?

As much as 50 gallons of Maple Sap are used to make a single gallon of Maple---------- .?

Bubble gum contains---------- .?

California's ---------- Epperson invented the Popsicle in 1905 when he was 11-years-old.?

California's Frank ---------- invented the Popsicle in 1905 when he was 11-years-old.?