Presentation on theme: "Matter: Properties & Change"— Presentation transcript:
1Matter: Properties & Change Essential Vocabulary6.P.2.1 Recognize that all matter is made up of atoms and atoms of the same element are all alike, but are different from the atoms of other elements.6.P.2.2 Explain the effect of heat on the motion of atoms through a description of what happens to particles during a change in phase.6.P.2.3 Compare the physical properties of pure substances that are independent of the amount of matter present including density, boiling point, melting point and solubility to properties that are dependent on the amount of matter present to include volume, mass and weight.
2MatterAnything that has mass and takes up space.Phases of Matter
3ElementA pure substance that is made up of only one kind of atom.
4AtomThe smallest unit of a pure substance that still has the properties of that substance.
5MoleculeThe smallest part of a substance formed by the chemical bonding of two or more atoms and that still retains its chemical composition and properties.
6MassMeasure of the amount of matter in an object.
7SolidA state of matter that has definite shape and volume.
8LiquidA state of matter that has a definite volume but no definite shape.
9GasA state of matter that has no definite shape or volume.
10VolumeA physical property that describes the amount of space that matter occupies.
11M V D = Density 1 cm3 = 1 mL 1 dm3 = 1 L The mass per unit volume of a substance at a particular temperature and pressure.Derived units = Combination of base unitsVolume (m3 or cm3 or mL)length length lengthOr measured using a graduated cylinder1 cm3 = 1 mL1 dm3 = 1 LD =MVDensity (kg/m3 or g/cm3 or g/mL)
12Boiling PointThe temperature at which a substance changes from a liquid to a gas.
13Freezing PointThe temperature at which a substance changes from a liquid to a solid.
14Melting PointThe temperature at which a substance changes from a solid to a liquid.
15SolubilityA physical property that describes the ability of a substance to dissolve in a solvent.
16InsolubleA substance will not dissolve in a solvent.
17PropertyDescribes how an object looks, feels, or acts.
18Physical PropertyA property that can be observed or measured without changing an object, or any part of the materials it is made of, into something else.
19Chemical PropertyA property that describes the ability of a substance to react with other materials and form new substances.
20Physical ChangeA change from one state (solid or liquid or gas) to another without a change in chemical composition. For example - phase changes or crushing a can.
21Chemical ChangeA change in the chemical composition of a substance to produce a new material with new properties. For example: burning, rusting, and photosynthesis.
22SolventA liquid, typically one other than water, used for dissolving other substances.
23SoluteAny substance that is dissolved in a liquid solvent to create a solution.
24Pure SubstanceA substance that is not mixed with another; elements and compounds are pure substances
25WeightA measure of the force of gravity on an object.
26ParticlesVery small pieces of solid or liquid matter.
27Homogeneous MixtureParts of a mixture are evenly distributed.
28Heterogeneous Mixture Parts of a mixture are not evenly distributed.
29MixtureFormed when two or more substances are combined physically.
30CompoundFormed when two or more substances are combined chemically.
31EvaporationWhen a substance changes from a liquid to a gas.
32MeniscusThe curved surface level of water in a graduated cylinder.
33ViscosityThe thickness of a fluid or the resistance of fluid to flow. A high viscosity fluid will not flow as easily as a low viscosity fluid (Mud will not move as easily as water).
34AmorphousA type of solid that forms without a fixed pattern.
35CrystalA type of solid that forms when a collection of atoms is repeated in the same arrangement over and over again throughout a substance.
36VaporizationChange of state from a liquid to a gas at or above its boiling point.
37SublimationChange of state from a solid to a gas without first becoming a liquid.
38CondensationChange of state from a gas to a liquid, usually due to cooling or compression.
39Condensation PointThe temperature at which a gas becomes a liquid. This happens when energy is removed and gas is cooled.
40DepositionChange of state from gas to a solid without first becoming a liquid.
42EnergyBasic property defined as the capacity to do work. Energy in the form of heat is needed to change from one phase to another. The basic forms of energy include electrical, chemical, mechanical, nuclear and radiant (light).
43PhaseA physical condition or stage of matter. Another word for phase is "state".
44StateA physical condition or stage of matter. Another word for state is "phase."
45PlasmaConsidered a 4th "state of matter. Plasma is a lot like gas but is made up of free electrons and ions. Electricity (a form of energy) flowing through the gas in a neon sign, or a fluorescent light make plasma in those lights.
46PressureThe measure of force that acts on a unit area.
47VaporAnother word for gas. Vapor is the word used to describe gases that are usually found as liquids, such as water.