6th grade science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| actinide | the second series of inner transition elements which goes from thorium to lawrencium
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| alkali metals | elements in group 1 of the periodic table
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| alkaline earth metals | elements in group 2 of the periodic table
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| Archimedes' principle | states that the buoyant force on an object is equal to the weight of the fluid displaced by the object
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| atomic mass | average mass of an atom of an element' its unit of measure is the atomic mass unit, which is 1/12 the mass of a carbon-12 atom
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| atomic number | number of protons in the nucleus of each atom of a given element; is the top number in the periodic table
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| buoyant force | upward force exerted on an object immersed in a fluid
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| catalyst | substance that can make something happen faster but is not changed itself
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| chemical change | change in which the composition of a substance changes
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| chemical property | characteristic that cannot be observed without altering the sample
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| compound | a substance produced when elements combine and whose properties are different from each of the elements in it
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| condensation | the process of changing from a gas to a liquid
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| density | mass of an object divided by its volume
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| deposition | the process by which a gas changes into a solid
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| electron | negatively-charged particle that exists in an electron cloud formation around an atom's nucleus
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| eletron cloud | region surrounding the nucleus of an atom, where electrons are most likely to be found
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| element | substance that cannot be broken down into simpler substances
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| freezing | change of matter from a liquid state to a solid state
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| gas | matter that does not have a definite shape or volume; has particles that move at high speeds in all directions
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| group | family of elements in the periodic table that have similar physical or chimical properties
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| halogen | elements in group 17 of the periodic table
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| heat | movement of thermal energy from a substance at a higher temperature to a substance at a lower temperature
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| isotopes | two or more atoms of the same element that have different numbers of neutrons in their nuclei
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| lanthanide | the first series of inner tansition elements which goes from cerium to lutetium
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| law of conservation of mass | states that mass is neither created nor destroyed--and as result the mass of the substances before a physical or chemical change is equal to the mass of the substancs present after the change
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| liquid | matter with a definite volume but no definite shape that can flow from one place to another
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| mass number | sum of the number of protons and neutrons in the nucleus of an atom
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| matter | anything that takes up space and has mass
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| melting | change of matter from a solid state to a liquid state
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| metal | element that is malleable, ductile, a good conductor of electricity, and generally has a shiny or metallic luster
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| metalloid | element that shares some properites with both metals and nonmetals
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| mixture | a combination of compounds and elements that has not formed a new substance and whose proportions can be changed without changing the mixture's identity
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| neutron | electrically-neutral particle that has the same mass as a proton and is found in an aotm's nucleus
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| noble gases | elements in group 18 of the periodic table
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| nonmetal | element that is usually a gas or brittle solid at room temperature and is a poor conductor of heat and electricity
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| Pascal's principle | states that when a force is applied to a confined fluid, an increase in pressure is transimitted euqally to all parts of the fluid
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| period | horizontal row of elements in the periodic table whose properties change gradually and predictably
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| physical change | change in which the form or appearance of matter changes, but not its composition
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| physical property | characteristic that can be observed, using the five sense, without changing or trying to change the composition of s substance
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| pressure | force exerted on a surface divided by the total area over which the force is exerted
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| proton | positively-charged particle in the nucleus of an atom
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| representative elements | elements in groups 1 and 2 and 13-18 in the periodic table that include metals, metalloids, and nonmetals
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| semiconductor | element that does not conduct electricity as well as a metal but conducts it better than a nonmetal
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| solid | matter with a definite shape and volume; has tightly packed particles that move mainly by vibrating
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| sublimation | the process by which a solid changes directly into a gas
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| substance | matter that has the same composition and properties throughout
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| surface tension | the uneven forces acting on the particles on the surface of a liquid
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| temperature | measure of the average kinetic energy of the individual particles of a substance
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| transition elements | elements in groups 3-12 in the periodic table, all of which are metals
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| vaporization | the process by which a liquid changes into a gas
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| viscosity | a liquid's resistance to flow
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
the98789
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