Skip Navigation

Changing Materials

Changing Materials

TEKS Objective

Demonstrate that things can be done to materials to change their physical properties such as cutting, folding, sanding, and melting. 

View Comments (0)

Rate this Page

Essential Understanding

The student knows that matter has physical properties and those properties determine how it is described, classified, changed, and used.

Science Background

Chemical vs. Physical Changes: CHEM4KIDS (website) - Physical changes do not change a substance’s chemical makeup. Learn how to distinguish physical and chemical changes.

Chemical vs. Physical Changes
by Andrew Rader, Chem4Kids,


Signature Lesson

Melting and Freezing: Science NetLinks (website) - Students explore how melting and freezing impact everyday items as they change form a solid to a liquid or a liquid to a solid.

Melting and Freezing
Science NetLinks,

Materials and Manufacturing: Science NetLinks (website) - Students examine the properties, limitations and durability of various materials, and evaluate which materials would be best for building a model house.

Materials and Manufacturing
Science NetLinks,

Supporting Lessons

Recycled Materials: Science NetLinks (website) - Students learn that some materials can be recycled, and they investigate types of materials that can be reused, as well as potential uses for recyclable materials.

Recycled Materials
Science NetLinks,

Elaboration Lessons and Extensions

FOSS Paper and Wood Unit: FOSSWeb (website) - This unit explores the properties of wood and paper and how they are processed to create other materials.

Paper and Wood Unit


Assessment Ideas

FOSS Paper and Wood Unit, Science Journal Questions: FOSSWEB (website) - This unit explores the properties of wood and paper and how they are processed to create other materials.  This questionaire can be used to assess student understanding.

Paper and Wood Unit

Literature Connections

Made in the USA: Recycled Paper. Woods, G. (ISBN-13: 978-1567113952)

Related Science TEKS

(2.1A) Science Safety
The student is expected to identify and demonstrate safe practices as described in the Texas Safety Standards during classroom and outdoor investigations, including wearing safety goggles, washing hands, and using materials appropriately.

(2.1B) Importance of Safe Practices
The student is expected to describe the importance of safe practices.

(2.1C) Recycling/disposal of Science Materials
The student is expected to identify and demonstrate how to use, conserve, and dispose of natural resources and materials such as conserving water and reuse or recycling of paper, plastic, and metal.

(2.2A) Ask Questions
The student is expected to ask questions about organisms, objects, and events during observations and investigations.

(2.2B) Plan and Conduct Descriptive Investigation
The student is expected to plan and conduct descriptive investigations such as how organisms grow.

(2.2C) Collect Data
The student is expected to collect data from observations using simple equipment such as hand lenses, primary balances, thermometers, and non-standard measurement tools.

(2.2D) Record and Organize Data & Observations
The student is expected to record and organize data using pictures, numbers, and words.

(2.2E) Communicate and Justify Explanations
The student is expected to communicate observations and justify explanations using student-generated data from simple descriptive investigations.

(2.2F) Comparing Results of Investigations
The student is expected to compare results of investigations with what students and scientists know about the world.

(2.3B) Make Predictions
The student is expected to make predictions based on observable patterns.

Related Math TEKS

2.12D  The student is expected to use tools such as real objects, manipulatives, and technology to solve problems.

2.13A  The student is expected to explain and record observations using objects, words, pictures, numbers, and technology.

Additional Resources

Where is Wood? FOSSWeb (website) - Select the “Where is Wood?” game on the left-hand menu and allow students to search for materials made from wood.

Where is Wood?

Close Comments Button


Post a Comment
Close Comments Button

TEKS Navigation

Grade 2

User Information

Forget Username or Password?

Enter your email address, we'll send it to you.

Not Registered Yet?
Sign Up Today!

Need Assistance?

If you need help or have a question please use the links below to help resolve your problem.