Unit 4 VOCAB!
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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| chemistry | The synthysetic study of the natural world
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| chemical bond | an attraction between atoms or molecules and allows the formation of chemical compounds, which contain two or more different atoms
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| chemical change | A reaction that transforms (changes) a substance into a new substance or substances with different properties
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| chemical formula | A combination of chemical symbols and numbers that indicates which elements and how many atoms of each element are present in a compound
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| chemical property | A property or characteristic of a substance having to do with how the atoms and molecules that make up the substance can be combined with or rearranged into other substances
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| compound | A pure chemical substance consisting of two or more different different chemical elements that can be separated into other substances by chemical reactions
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| covalent bond | A type of chemical bond in which atoms are held together in a molecule by sharing one or more electrons in their outer shells
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| endothermic reaction | Pertaining to a chemical change that is due to the absorption of heat
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| exothermic reaction | Pertaining to a chemical change that has to do with the release of heat
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| ion | An atom or molecule in which the total number of electrons is not equal to the total number of protons
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| ionic bond | A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion
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| periodic | Happening or recurring at regular intervals; having repeated cycles
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| precipitate | The formation of a solid
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| valence electrons | An electron in the outer shell of an atom which can combine with other atoms to form molecules
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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:
owlgirl
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