Science Explosion v4, chapter 7
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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| alkalis | bases that dissolve in water
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| atom | smallest piece of an element
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| atomic mass | sum of protons and neutrons
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| atomic number | number of protons in an atom’s nucleus
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| atomic theory | scientists ideas about atoms
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| chemical change | another name for a chemical reaction
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| chemical reaction | This occurs when molecules combine to create a new substance.
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| chemical symbols | abbreviations for elements
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| chemistry | study of matter
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| compound | molecules produced by a reaction
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| element | substance containing only one kind of atom
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| group | vertical columns of table
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| indicator | changes color when exposed to acid or base
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| ion | atom that has gained or lost an electron
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| molecule | atoms joined together
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| neutral | pH of 7.0
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| particle accelerator | atom smasher
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| period | horizontal rows of periodic table
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| pH scale | “power of hydrogen”; numbered from 0-14
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| stable | When an atom's outermost shell is completely full so the shell is closed.
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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:
marchscience
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