This Investigation Set is designed for students to understand the conservation of mass and its validity as a universal scientific law. The instruction in this set encourages students to draw conclusions using evidence from their texts and data from their investigations and to evaluate whether or not their conclusions are valid.
Target Grades & Subject(s): Grades 6-12; Science
- Next Generation Science Standards (NGSS)
- Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved. (NGSS MS-PS-1-5)
- Science and Engineering Practices (SEP)
- Use and construct models for representing ideas and explanations. (NGSS, SEP 2)
- Students select appropriate tools to collect appropriate data while performing experiments. (NGSS, SEP 3)
- Use appropriate and sufficient evidence and scientific reasoning to defend claims and explanations about the natural world. (NGSS, SEP 7)
Before teaching Part 1: 2-02: Conservation of Mass
- To introduce the investigation set, have students watch this video. As students are watching the video,
have them record their observations and answer the following question: “Where did the water go?”
Have students share out their responses in small groups and with the whole class.
Download complete teaching guide Conservation of Mass
Add this text series to your workspace from the Actively Learn Catalog Conservation of Mass