Atoms Can Be Rearranged to Make Different Molecules

Learning Resource Type

Classroom Resource

Subject Area

Science

Grade(s)

2

Overview

In this lesson, students will be able to explain that snap cubes or other objects can be used as models of atoms. Students will also be able to explain that atoms can be rearranged to make different molecules. 

Students see an animation showing that the things around them are made of atoms and molecules. Students are given white, red, blue, and black cubes that represent hydrogen, oxygen, nitrogen, and carbon atoms. Students are guided to take atoms apart, rearrange them, and put them together again in different ways to make six different molecules. Students also see a fun molecule-making game that they can try.

Science (2015) Grade(s): 2

SC15.2.3

Demonstrate and explain how structures made from small pieces (e.g., linking cubes, blocks, building bricks, creative construction toys) can be disassembled and then rearranged to make new and different structures.

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Vocabulary

  • Demonstrate
  • Explain
  • Structure
  • Pieces
  • Disassemble
  • Rearrange
  • Different

Knowledge

Students know:
  • Different properties are suited for different purposes.
  • A great variety of objects can be built up from a small set of pieces.
  • Structures can be disassembled and rearranged into new and different structures.

Skills

Students are able to:
  • Disassemble a structure into small pieces.
  • Assemble a new structure using the same small pieces.
  • Provide a written and/or oral explanation that correlates with a demonstration detailing the characteristics of the new object or objects.

Understanding

Students understand that:
  • Structures may be broken into smaller pieces and a new structure, that is different in size or shape, can be formed from the same pieces.

Scientific and Engineering Practices

Constructing Explanations and Designing Solutions

Crosscutting Concepts

Energy and Matter

CR Resource Type

Lesson/Unit Plan

Resource Provider

American Chemical Society

License Type

Custom
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