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2nd Grade:
PS1.A: Structure and Properties of Matter
Different kinds…
2nd Grade:
PS1.A: Structure and Properties of Matter
Different kinds of matter exist and many of them can be either solid or liquid, depending on temperature. Matter can be described and classified by its observable properties.
NGSS
2-PS1-1. Plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.
Crosscutting concepts
Patterns: Patterns in the natural and human designed world can be observed #
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Relevant terminology
Matter : something that takes up space #
Properties of matter: description of an object size-color-shape #
States of matter: solids-liquids-gases #
solid: it has a constant shape-it does not flow- it takes up space #
liquid: it can flow- it takes the shape of its container #
solution: a liquid in which something has been dissolved #
dissolve: when a solid mixes in with a liquid and becomes part of the liquid #
freezing: change from a liquid to a solid by adding cold energy
Melting: change from a solid to a liquid by adding hot energy
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heat energy : makes solids melt , cold energy: makes liquids become solids
gases: no shape of its own fills up ALL the space in the container volume changes when container is open #
Expansions
Engage
Go on a scavenger hunt either indoors or outdoors for solids, liquids, and gases . Come back for a quick whole group discussion on what students found?
Explore
Have students analyze and classify different objects based on their property of matter. Students need to compare and contrast what is the same and what is different about the different objects within each category as well as the similarities and difference crossed categories. Students could do this through an observation recording sheet.
Elaborate
Discuss how temperature effects the atoms within and object and how that changes the objects state of mater. Have the students participate in an activity in which they are the atoms within a solid item. The teacher is the heat source and the students are the atoms. The students have to change the way they are moving to reflect the way the atoms would move depending on how the heat source would effect the atoms.
Evaluate
The students will create particle models for each state of matter. The students will have to create a model to represent the way models look based on the state of matter. This students will need to incorporate how the different temperatures connect the states of matter. The students will be given creative freedom to design the models and the teacher will give them constraints for example all three models must be able to fit in one 5 x 5 space, model must be labeled. The students will then present their models in a gallery walk fashion for parents and other grades such as K-1.
Explain
Have students attach sticky notes to the board with their questions and thinking on properties of matter and have a classroom discussion based on their thinks, knows, wonders, and connections. Encourage the class to record other students’ responses in their journal
Key Concepts
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Atoms make up everything and differ between solids, liquids, and gases.
The 3 different types of matter: solids, liquids, gases. Their physical and chemical attributes.
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