Look at the information provided on each slide

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Presentation transcript:

Look at the information provided on each slide Look at the information provided on each slide. Can you predict questions that you might be asked about it?

sound level (decibels) material sound level (decibels) no material added 65 A 40 B 58 C 50 D 35

time taken to dissolve (s) temperature of water (ºC) time taken to dissolve (s) 65 24 40 35 15 90 5 100

time taken until cross cannot be seen (minutes) shape of tea bag time taken until cross cannot be seen (minutes) triangle 8 square 15 circle 10

What is the correct order?

What would the results table look like?

How is the second plan better than the first plan? We will use 3 tea bags and 3 beakers SECOND PLAN Collect three beakers. Collect three different tea bags. Put one tea bag in each beaker. Add 150 cm3 of water at 65°C. Keep the temperature of the water the same. Measure the time taken for the tea to dissolve. Find out which is the quickest for making tea. How is the second plan better than the first plan?