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# Megan

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### Megan

1. 1. Elementary Matter<br />
2. 2. Define Matter<br />Matter is everything around you, and is anything formed with atoms and molecules or that possess mass.<br />Mass can be defined as how much there is of an object and is related to how much something weighs.<br />Objects that take up space and have mass are called matter. You are matter.<br />
3. 3. Define Mass<br />Anything that is matter has a mass, even though it may be very small, because matter can be small or large.<br />Mass is measured in grams.<br />Show that matter is everything around you, ask the kids to give examples of large matter and small matter.<br />
4. 4. Define Volume<br />Volume is the amount of space an object occupies.<br />Density is the relationship of mass to volume.<br />It is defined as the mass of a substance per unit volume.<br />
5. 5. Physical Properties<br />Physical properties include density, mass and volume.<br />They are properties you can use your senses to find.<br />Give example such as orange, ask for physical properties of an orange.<br />Properties include: color, shape, mass, volume, smell, and density.<br />
6. 6. Chemical Properties<br />Properties that can only be observed by changing the identity of a substance. <br />For example, if you burn a piece of paper the paper lights and then turns to ash, you cannot change the paper back to paper. This means that chemical change is irreversible.<br />
7. 7. Physical Change<br />Physical change is a change in the physical properties of a substance.<br />For example a change in state like that of an ice cube that melts.<br />Physical change is reversible, because after a change in state the chemical properties remain the same.<br />
8. 8. Chemical Change<br />Chemical changes are changing substances into other substances.<br />An example would be the spoiling of milk or burning toast, these processes are irreversible and change the chemical properties of the original substance.<br />