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Quick quiz

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This activity contains 5 questions.

Question 1.
In order to dissolve the greatest amount of sugar in a cup of water, you should:

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End of Question 1

Question 2.
A mixture of iron filings and copper filings could best be separated by:

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Question 3.
Match each technique with its use.

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A matching question presents 5 answer choices and 5 items. The answer choices are lettered A through E. The items are numbered 3.1 through 3.5. Screen readers will read the answer choices first. Then each item will be presented along with a select menu for choosing an answer choice. Using the pull-down menus, match each item in the left column to the corresponding item in the right column.
A To obtain the solute from a solution
B To separate a mixture of liquids with different boiling points
C To separate the colours in inks, food dyes and other mixtures of different colours
D To separate a mixture containing two solids with different-sized particles
E To obtain the sediment from a suspension
End of Question 3

Question 4.
Label the diagram which shows the activated sludge process for sewage treatment.

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The letters A through F appear on an image associated with this question.

This question presents 6 items numbered 4.1 through 4.6. Each item is presented with a pulldown menu containing the letters A through F. For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
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Question 5.
Rainwater passes through several areas and structures before it reaches the taps in your house. Which of the following shows the order in which rainwater passes through these areas and structures?

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