Is It a Chemical Change?

Book Chapter | March 2019

Observations provide evidence of a chemical change. The purpose of this assessment probe is to elicit students’ ideas about chemical change. The probe is designed to find out what changes students use as evidence of a…

Understanding Chemical Changes

Book Chapter | September 2010

Predict, Observe, Explain (POE) sequences provide an important way to enhance students' understanding of important scientific ideas. In this chapter, the series of experiments help students understand chemical changes…

Chemical Change Café

Book Chapter | August 2011

Learners explore the differences between chemical and physical changes by observing a variety of changes in mater. Learners observe the chemical change of cooking pancakes and identify new menu items for the Chemical…

What Is the Result of a Chemical Change?

Book Chapter | March 2019

The purpose of this assessment probe is to elicit students’ ideas about chemical change. The probe is designed to find out whether students recognize that substances change chemically as a result of a chemical reaction…

Butter Battle: Physical Changes Versus Chemical Changes

Book Chapter | April 2011

When passing hot rolls around the dinner table, buying popcorn at a movie theater, or making cookies, it is there: butter. Creating butter in a bottle helps students see how a physical change can be more drastic than an…

Mixing and Making a Change: Chemical Science

Book Chapter | March 2016

Mixing and making a change engages children in learning chemistry long before they are able to understand the atomic structure of materials. This chapter focuses on activities of mixing materials in the kitchen to help…

Understanding Chemical and Physical Changes

Journal Article | February 2020

Arguing About a Chemical Change

Journal Article | February 2020

Use a sample ACT writing prompt in an explore-before-explain instructional sequence to a 9th-grade physical science class to promote student learning and demonstrate that mass is conserved in a chemical reaction

Science 101: Why does a color change indicate a chemical change?

Journal Article | January 2006

There are a a number of indicators you can use to determine whether or not a chemical reaction has occurred. Among them are a change in color, the evolution of a gas, and the production or absorption of heat. To…

Chemicals Gone Funny

Journal Article | May 2022

Chemical Cargo Carrier

Journal Article | March 2023

Is It A Change?

Journal Article | January 2023