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41 Cards in this Set
- Front
- Back
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What unites to measure id card
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MG
Milli Gram |
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350 ml = _________l
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.35
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what are the bases?
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Base
Meter Gram Litter |
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what do you avoid in a lab?
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long clothes
goggles |
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what is the The Scientific Method
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a series of steps utilized by a scientist in order to conduct acceptable research.
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what is a variable?
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The variable is the one thing that is changed in your experiment, and it is called the independent variable.
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what do you do after an experiment?
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After doing the experiment, you should organize your data and analyze the results.
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mater measures?
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mass
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volume measures?
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the space it takes up
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mass is?
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Mass is the amount of matter contained in a substance or object
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what is solubility?
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is the measure if dissolving in to the solvent
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what is conductivity?
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the ability to transfer heat and electricity
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what is malleability?
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the ability to shape a object by hitting it with a hammer
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what is ductility?
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the ability to pull a substances in to strands
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what is density?
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the amount of matter in a given space
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how do you find density?
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mass over volume
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the density of water 1 what happens if you put an object in the water that is density of 2
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it will sink
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what is a chemical change?
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A chemical change occurs when one or more substances are changed into new substances with different properties; such changes are not easily reversed. Examples include rusting, cooking food.
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what are the states of matter?
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liquid, gas , solid
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what state has a definite shape and volume?
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solid
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what state has a definite volume but not shape?
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liquid
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what state has no definite shape or volume?
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gas
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what is boyle's law?
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states that the volume of a gas increases as the pressure decreases if the temperature does not change
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what is Charles's law?
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states that the volume of a gas increases as the temperature increases if the pressure does not change.
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what is boiling?
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occurs thought liquid to gas
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what is evaporation?
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occurs at the surface from liquid to gas.
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what is condensation?
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changes from gas to liquid
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sublimation is?
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changing from solid directly to a gas
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homogeneous is?
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when it is the same all the way thought
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heterogeneous is?
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when it is different all the way through
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what is an element?
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are classified as metals, nonmetals, and metalloids based on their properties.
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metals are?
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• Metals are located on the left of the periodic table, and are known to have luster, malleability, ductility, and higher melting points.
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metaliods are?
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• Metalloids have varying properties, with some similar to metals and other similar to nonmetals. Metalloids are on the staircase of the periodic table.
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nonmetals are?
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• Nonmetals are on the left side of the periodic table, are dull and brittle, and some exist as liquids or gases
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what is a compound?
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a compound is two elements chemically stuck together
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what is a mixture?
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a combination of two or more substances is combined bye a physical property
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what is a solution?
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is a mixture that appears to be a single substance but is composed of a solute in a solvent. Solutions do not settle, cannot be filtered, and do not scatter
light. It is a homogeneous mixture |
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Concentration
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strong
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Dilute
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week
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suspensions
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are heterogeneous mixtures that contain particles large enough to settle
out, they can be filtered, and block or scatter light. |
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colloids are?
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are mixtures that contain particles too small to settle out or be filtered but
large enough to scatter light. |
