Lesson 1.2 Classifying Matter
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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| element | a substance that cannot be broken down into any other substances by chemical or physical means.
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| atom | the basic particle from which all elements are made; the smallest particle of an element that has the properties of that element.
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| chemical bond | the force of attraction that holds two atoms together.
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| molecule | a neutral group of two or more atoms held together by covalent bonds.
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| mixture | two or more substances that are together in the same place but their atoms are not chemically combined.
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| chemical formula | symbols that show the elements in a compound and the ratio of atoms.
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| compound | a substance made of two or more elements chemically combined in a specific ratio, or proportion.
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| heterogeneous mixtures | mixtures you can see usually see the different parts and they can easily be separated out. (ex...guacamale, salad)
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| homogeneous mixtures | substances are so evenly mixed that you can't see the different parts. (ex...soy sauce, honey, )
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| filtration | solids can be separated from liquids by pouring the mixture through filter.
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| distillation | liquids can be separated from each other by heating them up to the temperature at which one of the liquids boils. Then gas cools, forming the separated liquid.
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| magnetic attraction | iron objects can be separated from a mixture using a magnet.
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| evaporation | when left in the open air, liquid solutions can change to gas, leaving solid components behind.
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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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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.
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:
mrsheck607