Revise The Atmosphere
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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| List the 5 gases that air is made up of. | Nitrogen, Oxygen, Water vapour, Argon, Carbon Dioxide.
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| State how much of each of the following gases is present in air Carbon dioxide, Nitrogen and Oxygen. | Nitrogen: 78%, Oxygen 21%, Carbon Dioxide <1%
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| Why does air rise? | Because it is heated.
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| What chemicals do you need to make oxygen gas? | Manganese Dioxide and Hydrogen Peroxide.
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| What is a catalyst? Give an example. | A catalyst is something which speeds up a reaction with out getting used in the reaction itself. Manganese Dioxide.
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| Describe how you test a gas to see if it is oxygen. | A small amount in a test tube should relight a glowing splint.
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| What are the chemicals you need to make Carbon Dioxide gas? | Calcium Carbonate (marble chips) and HCL.
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| How do you test a gas to see if is Carbon Dioxide? | A small amount in a test tube should put out a lighted splint.
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| Describe how to test the pH of carbon dioxide and oxygen. | Shake some water in a test tube with the gas you want to test and put a piece of litmus paper in the water. The water will dissolve some of the gas.
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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.
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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:
SC Dave
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