Quick answer: The law of conservation of mass says that the total mass of all substances in a closed system stays the same during any change. This grade 7 science quiz checks conservation of mass with 10 multiple-choice questions and instant feedback; every answer comes with a short explanation.
This conservation of mass quiz for grade 7 science has quick multiple-choice questions with instant feedback. Need a refresher first? Read the lesson or do the worksheet on conservation of mass.
Ten multiple-choice questions to check your understanding of conservation of mass. Choose one answer for each question and read the explanation, especially when you get one wrong. The wrong options are typical student mistakes.
