Matter of Degree
Contributed By
- Original Source:Oregon Museum of Science and Industry
Conditions of Use:None Specified
Description
In two separate bags, students mix water with Epsom salts and detergent. They discover that one mixture becomes cold (dissolving is an endothermic process), and one becomes hot (dissolving is an exothermic process). Students can then try different powders or different amounts of powders to compare results. This activity also gives ample opportunity for group observations and discussion about what characterizes a chemical reaction. Students can extend their learning using one of the extensions listed on page 9 of the activity guide. This activity is part of the 21-activity guide published by OMSI, No Hassle Messy Science with a Wow. All activities in this guide use household materials and all lesson plans include preparation directions, demonstrations, procedure sheets, cross-curricular connections, and scientific explanation of content. Less
Learning Registry Activity
Bookmarks
Topics and Grades
Grade: TK/K to 9
Topics: Heat & Thermodynamics, Energy & Work, Physics, Earth's Resources, Chemistry, Earth & Space Science, Ecology & Ecosystems
Resource Pedagogy
Resource Type/Classification:
- Teacher Materials
Tool for: Students