Science 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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| acetic acid | The old name for ethanoic acid. It is the acid in vinegar.
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| acid | A substance that turns litmus red. It has a pH of less than 7.
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| ascorbic acid | Chemical name for vitamin C.
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| citric acid | The acid in citrus fruits.
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| ethanoic acid | The acid in vinegar.
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| gas | Something made of particles that are very spread out and have no bonds between them.
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| sweetener | A substance that makes things taste sweeter.
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| corrosive | Substances that attack metals, stonework and skin.
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| harmful | Another word for irritant.
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| hydrochloric acid | A common acid that is also found in your stomach.
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| irritant | Something that irritates the skin and eyes.
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| nitric acid | A common acid.
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| sulphuric acid | A common acid - used in car batteries.
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| alkali | Substance that turns litmus blue. Has a pH of more than 7.
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| indicator | A dye that will change colour in acids and alkalis.
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| litmus | A simple kind of indicator. It turns red in acids and blue in alkalis.
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| neutral | Substance that is not an acid or an alkali. Has a pH of 7.
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| antacid | A medicine containing an alkali used to cancel out some of the acid in the stomach to treat heartburn.
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| pH scale | A numbered scale form 1-14 showing the strengths of acids and alkalis.
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| universal indicator | A mixture of indicators giving a different colour depending on how weak or strong an acid or alkali is.
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| burette | A tube with a tap at the bottom and a measuring scale on its side. Used to add a measured quantity of a liquid to another one.
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| dilute | We dilute a solution by adding more of the solvent to it.
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| neutralisation | When something is neutralised.
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| neutralise | When an acid is added to a base (or alkali) a neutral substance is produced.
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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:
tescommonstacks
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