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35 Cards in this Set
- Front
- Back
Physical Properties |
Matter is anything that has mass and takes up space |
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Particle theory of matter |
• all matter is made up of tiny particles • each pure substance has its own kind of particle which is different from the particles of other pure substances • attract each other • always moving Move faster at a higher temperature |
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Pure Substance |
One kind of particle |
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Mixture |
More than one kind of particle |
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Conductor |
Allows the movement of electrons |
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Insulator |
Does not let the electrons flow through it easily |
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Astronomical Distance |
Distance between Earth and the sun |
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Types of energy |
Light heat sound |
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Static electricity |
Imbalance of electrons on a surface |
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Series circuit |
I circuit which provides one path for the electrons to move |
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Parallel circuit |
A circuit that provides more than one path for electrons to move |
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Fertilizers |
Most common way to replace lost nutrients on farmland |
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Pesticides |
Poisons that kill pests |
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Organic farming practices |
•No tillage farming- The ground is left undisturbed after harvest • crop rotation- changing the crops planted on a certain area of land(reduce the amount of pesticides) |
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Melting |
Changing from solid to liquid |
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Solidification |
Liquid to a solid |
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Condensation |
Changing from a gas to a liquid |
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Evaporation |
Changing from a liquid to a gas |
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Sublimation |
Changing from a solid to a gas |
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Deposition |
Changing from gas to solid |
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Alkali metals |
Group one. Low melting points that are soft. Extremely reactive |
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Alkaline earth metals |
Group 2. Highly reactive but not as reactive as the alkali metals |
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Noble gases |
Group 8. Odorless colorless gases at room temperature |
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Types of pesticide |
Herbicides, insecticides, Rodenticides |
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Electrolysis |
Separating a compound |
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Hubbles law |
• each galaxy emits its own distinct spectrum of light • light spectrum shift depending on whether the light source is moving or stationary |
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Solution |
Uniform mixture which seems like there's only one substance |
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Mechanical mixture |
Mixture is distinctive |
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Isotope |
Form of an element that has same number of protons as the other atoms of that element but a different number of neutrons. |
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Physical property |
Characteristic of a substance that can be observed and measured without changing the identity of the substance |
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Qualitative |
Observed and described without measurement |
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Quantitative |
Measured and described by a particular value |
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Chemical property |
Describe the ability of a substance to react with another substance to form one or more new substances |
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Ion |
Positive or negatively charged atoms or molecules to form when atoms lose or gain electrons |
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Halogens |
Group 7. highly reactive and extremely corrosive. |