Homefleece to grease | safe in the sun | fun with foam
Four different samples of bubble mix were shaken with water to see which produced the best foam. The results are shown in the picture.
See if you can answer these questions. Read each one carefully and choose the best answer.
#correct# out of #maxQ# correct.
See if you can get them all right this time.
It must have made sense! You scored #correct# out of #maxQ#
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Which sample would you change to make sure the investigation is a fair test?
checked = "checked" /> A B C D
Which one produced the least foam?
A B checked = "checked" /> C D
Which fair test sample produced the longest lasting foam?
A B C checked = "checked" /> D
Which one produced the best foam?
Which of these is NOT needed for a fair test?
use the same volume of water each time checked = "checked" /> the same person must shake the bottle each time use the same amount of liquid soap each time shake the bottles for the same length of time
Check answers all correct
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