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# PS1.A: Structure and Properties of Matter

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by on 28 October 2014

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#### Transcript of PS1.A: Structure and Properties of Matter

Elliana Golijov
PS1.A: Structure and Properties of Matter
K-2 (Early Elementary)
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.
(I.E. visual or textural)
Different properties are suited to different purposes.
A great variety of objects can be built up from a small set of pieces.
3-5 (Upper Elementary)
Matter of any type can be subdivided into particles that are too small to see, but even then the matter still exists and can be detected by other means.
(I.E. weight or mass)
The amount (weight) of matter is conserved when it changes form, even in transitions in which it seems to vanish.
(I.E. sugar in solution or evaporation in a closed container)
Measurements of a variety of properties can be used to identify materials.
Common Misconceptions
Investigating Matter
Have young students experiment by placing an ice cube outside in the sun, keeping an ice cube in the room, and storing an ice cube in the refrigerator or freezer and making observations
Classifying Materials
Provide worksheets for students to group or match various materials to the 3 states of matter
Measure Quantities
Have students blow up a balloon using their lungs and another balloon using an air pump. Compare their weights.
Design a Model
Have students design a model demonstrating the arrangement and motion of particles in the 3 different states.
Assessment
Demo & References
DCI Progression Overview
Misconception
Everything that exists is matter–including heat, light, shadows and electricity.

Reality
There are 3 states of matter: solids, liquids, and gases.
Misconception
Gases do not have mass. When gases expand, more gas is present.

Reality
Like all matter, gases have mass and take up space.
When gases expand, their amount remains constant, while their volume changes as the container and pressure changes.

Misconception
Mass and volume are the same property.

Reality
Mass is the measure of how much matter is in an object, while volume is the measure of how much space an object takes up.
When changing states, the mass of a material remains constant while its volume may not.
Misconception
Dissolving and melting are the same processes.

Reality
Melting is a process in which a solid undergoes change in the arrangement and average motion of particles to become a liquid.
Dissolving requires two materials being mixed together, causing the solid materials to break down into smaller particles. Dissolving does not change the state of matter.
States Activity:
http://www.bbc.co.uk/schools/scienceclips/ages/9_10/changing_state_fs.shtml
Gas Activity:
http://www.bbc.co.uk/schools/scienceclips/ages/9_10/gases_fs.shtml
Connecticut Science Center. (2012, October). States of Matter Matter. Retrieved from http://www.ctsciencecenter.org/documents/PD/dcfp/2.1_States_of_Matter.pdf