Rocks and Building Materails
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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How do you make concrete using cement? | Mix cement with water, sand and crushed rocks then leave it to set.
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What is it called when calcium carbonate is heated to make calcium oxide and carbon dioxide? | Thermal decomposition
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How do you test for carbon dioxide? | Guide the suspect gas into limewater and see if it turns it cloudy.
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What is a disadvantage of using explosive charges while quarrying limestone? | The noise scares off wildlife and disrupts local residents.
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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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