ALEX | Alabama Learning Exchange

Heating Can Make a Change That Cannot Go Back Again

Classroom Resource Information

Title:

Heating Can Make a Change That Cannot Go Back Again

URL:

https://www.acs.org/content/acs/en/education/resources/k-8/inquiryinaction/second-grade/chapter-5/lesson-5-2-heating-can-make-a-change-that-cannot-go-back-again.html

Content Source:

Other
American Chemical Society

Type:

Lesson/Unit Plan

Overview:

In this lesson, students will be able to explain that when some substances are heated to a certain extent, they change in a way that cannot be changed back by cooling them.

Students see a time-lapse video of cookie dough being baked into cookies. Students participate in a class discussion about heat-causing changes that cannot be reversed when cooled. Students learn that heating baking powder in the cookie dough makes gas and causes little holes in the cookie. Students design and conduct an experiment to see if baking powder causes more bubbling when it is warm or cold.

Content Standard(s):

Science
SC2015 (2015)
Grade: 2

4 ) Provide evidence that some changes in matter caused by heating or cooling can be reversed (e.g., heating or freezing of water) and some changes are irreversible (e.g., baking a cake, boiling an egg).

NAEP Framework

NAEP Statement::
P4.6: One way to change matter from one state to another and back again is by heating and cooling.

Unpacked Content

Scientific And Engineering Practices:

Engaging in Argument from Evidence

Crosscutting Concepts: Cause and Effect

Disciplinary Core Idea: Matter and Its Interactions

Evidence Of Student Attainment:

Students:

Construct an argument with evidence to support a claim that some changes in matter caused by heating and cooling can be reversed and some cannot.

Teacher Vocabulary:

Properties
Evidence
Change
Matter
Heating
Cooling
Reversible
Irreversible

Knowledge:

Students know:

Characteristics of materials before heating or cooling.
Characteristics of materials after heating and cooling.
Characteristics of materials when heating or cooling is reversed.

Skills:

Students are able to:

Analyze evidence to support a claim that heating and cooling causes change in matter.

Understanding:

Students understand that:

Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible and sometimes they are not.

AMSTI Resources:

AMSTI Module:
Matter
Solids and Liquids, FOSS

Alabama Alternate Achievement Standards

AAS Standard:
SCI.AAS.2.4- Predict changes to matter, reversible and irreversible, that may occur when matter is heated or cooled (e.g., heating or freezing water, boiling an egg, baking a cake).

Tags:

chemical, heat, heating, irreversible, substance

License Type:

Custom Permission Type
See Terms: https://www.acs.org/content/acs/en/terms.html
For full descriptions of license types and a guide to usage, visit :
https://creativecommons.org/licenses

Accessibility

Comments

This resource provided by:

Author:

Stephanie Carver

ALEX Classroom Resource

Heating Can Make a Change That Cannot Go Back Again