Law of Conservation of Mass Activity with Reading


This reading and investigation introduces students to the law of conservation of matter and lets them witness the law firsthand using THE EASIEST supplies!

Grades 7 and Up

⭐ Get this law of conservation of mass activity at a big discount in our Physical and Chemical Changes Unit!

This Resource Includes the Following Sections:

  1. Introductory reading on the law of conservation of mass (matter)
  2. Follow-up questions to check for understanding
  3. A supporting activity using EASY SUPPLIES! Students write a focus question and hypothesis, then follow a simple procedure to observe changes in apples that demonstrate the law of conservation of mass. They’ll collect data on included data sheets and answer analysis questions with claims/evidence/reasoning. (This part of the activity will be ongoing over several weeks.)

Easy-EasyEasy Supplies:

  • 2 apples
  • 2 glass jars (spaghetti sauce and pickle jars work great)
  • triple beam balance or digital scale

Teacher Notes:

  • Related NGSS Science & Engineering Practices: Developing and using models; Planning and carrying out investigations; Analyzing and interpreting data
  • This law of conservation of mass activity is intended for the middle school level.
  • Includes a digital Google Slides option to assign!
  • Please note: this resource is not editable.


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