This product is great for reviewing customary capacity. It can be used as a pre-assessment to see where students stand, a review activity, or as a formal assessment. It uses multiple choice, short answer, and discussion questions.
I use these pages after first teaching my students the story of “The Land of Gallon”, from the Lesson Plan Diva. Get it here: https://www.teacherspayteachers.com/Product/Land-of-Gallon-215398
Even though the story was intended for younger grades, my fifth graders love it because it is a GREAT mnemonic device to memorize the conversions. Most of my students write “the Big G” as a reference somewhere on their paper as soon as they get this sheet.