2nd Grade Science Unit 3

Big Idea:

Compare changes in the physical properties of materials through manipulation.

Student Expectations:

Priority TEKS

2.5(B) compare changes in materials caused by heating and cooling;

Focus TEKS

2.5(C) [Supporting] demonstrate that things can be done to materials to change their physical properties such as cutting, folding, sanding, and melting

2.5(D) [Readiness] combine materials that when put together can do things that they cannot do by themselves such as building a tower or a bridge and justify the selection of those materials based on their physical properties

Ongoing TEKS

2.1(A) [Tools to Know] 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.

2.4(A) [Tools to Know] Collect, record, and compare information using tools, including computers, magnets.

2.2(D) [Ways to Show] Record and organize data using pictures, numbers, and words;

2.2(E) [Ways to Show] communicate observations and justify explanations using student-generated data from simple descriptive investigations; and

2.2(F) [Ways to Show] compare results of investigations with what students and scientists know about the world.

Student Learning Targets:

• I will observe and explain the transformation that occurs through heating and cooling.
• I will identify the properties needed to change the state of matter from a solid to a liquid.
• I will identify the properties needed to change the state of matter from a liquid to a solid.
• I will write my classroom observations about changes in matter.
• I will investigate how physical properties change through manipulating matter (ex: cutting, folding, etc).
• I will demonstrate how combining materials can be beneficial to complete a task.

Essential Questions:

• How can the physical properties of materials and objects be changed?
• How can you change the physical properties of a specific object around the classroom?
• Why did you choose to use your particular materials when constructing your design?

Extra Information:

Adopted Textbook: ScienceFusion, Houghton Mifflin Harcourt

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