| Grade K |
Grade 2 |
|
Standard 4.0 Chemistry: Students will use scientific skills and processes to explain the composition, structure, and interactions of matter in order to support the predictability of structure and energy transformations.
|
Standard 4.0 Chemistry: Students will use scientific skills and processes to explain the composition, structure, and interactions of matter in order to support the predictability of structure and energy transformations.
|
|
A. Structure of Matter
|
A. Structure of Matter
|
1. Compare the observable properties of a variety of objects and the materials they are made of using evidence from investigations.
|
1. Cite evidence from investigations that most things are made of parts.
|
a. Examine and describe various objects in terms of the materials, such as clay, cloth, paper, etc. from which they are made.
|
a. Examine a variety of objects, such as toys, objects made from Legos or Tinker Toys to identify and describe the parts from which they are made.
|
b. Based on data, describe the observable properties, such as size, shape, color, and texture of a variety of objects.
|
b. Take objects apart and rearrange the parts to identify and describe the ways the parts work together.
|
c. Identify and compare the properties of materials objects are made of and the properties of the objects.
|
c. Ask and seek answers to "What if" questions about the changes made to the objects and how they affect the way objects work, for example, if a part were left out of the object would it make a difference in how the object works?
|
|
B. Conservation of Matter
|
B. Conservation of Matter
|
|
|
1. Provide evidence from investigations that things can be done to materials to change some of their properties.
|
|
|
a. Based on evidence from investigations describe that materials, such as clay are not changed by certain actions, such as reshaping or breaking into pieces.
|
|
|
b. Ask and seek answers to questions about what happened to the materials if other things were done to them, such as being placed in a freezer, heated, etc.
|
|
C. States of Matter
|
C. States of Matter
|
|
D. Physical and Chemical Changes
|
D. Physical and Chemical Changes
|
|
|
1. Provide evidence from investigations to identify processes that can be used to change physical properties of materials.
|
|
|
a. Based on investigations, describe what changes occur to the observable properties of various materials when they are subjected to the processes of wetting, cutting, bending, and mixing.
|
|
|
b. Compare the observable properties of objects before and after they have been subjected to various processes.
|
|
|
c. Ask and seek answers to "What if" questions about what might happen to the materials if different processes, such as heating, freezing, and dissolving were used to change them.
|
|