8th Science U3 L3L4
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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| chemical bond | an interaction that holds atoms or ions together
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| valence electron | an electron that is found in the outermost shell of an atom and that determines the atom’s chemical properties
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| chemical reaction | the process in which atoms are rearranged and chemical bonds are broken and formed to produce a chemical change of a substance
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| chemical formula | a combination of chemical symbols and numbers to represent a substance
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| chemical equation | a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
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| reactant | a substance that participates in a chemical reaction
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| product | a substance that forms in a chemical reaction
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| law of conservation of mass | the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
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| endothermic reaction | a chemical reaction that requires energy input, usually as heat
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| exothermic reaction | a chemical reaction in which energy is released to the surroundings, usually as heat
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| law of conservation of energy | the law that states that energy cannot be created or destroyed but can be changed from one form to another
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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.
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.
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:
ashaver
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