Engage your students in developing and using models to describe that matter is made of particles too small to be seen.
NGSS Grade 5-PS1-1. Develop a model to describe that matter is made of particles too small to be seen. [Clarification Statement: Examples of evidence could include adding air to expand a basketball, compressing air in a syringe, dissolving sugar in water, and evaporating salt water.] [Assessment Boundary: Assessment does not include the atomic-scale mechanism of evaporation and condensation or defining the unseen particles.]
The first activity begins with a whole class assessment to assess prior knowledge and build background knowledge about polymers. Next, students follow 4 different recipes to make and compare 4 polymers. The 4 recipes yield polymers with slightly different properties. Students test, observe, describe, and compare the 4 polymers. Then students engage in creative drama to model a monomer, polymer, and cross-linked polymer.
The second individual assessment activity starts with students making a new cross-linked polymer. After testing and observing the properties of the new cross-linked polymer, students use paperclips to construct and evaluate models for a monomer, polymers, and cross-linked polymer.
This lesson includes: Background information for teachers, teaching notes, a How to Make a Scientific Model guide, student recording pages, Science Notes for students to read, rubrics for scoring, and an extension lesson.
All pages may be viewed at scienceandkidsactivities.com
This packet is designed for use at the end of a unit on Matter and Its Interactions.