Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
9th February 2011
- 1Science: Full Practice Paper 8
Name the enzyme found in saliva that begins the digestion of starch in the mouth.
- 2Science: Full Practice Paper 9
A pupil adds universal indicator to a solution and it turns red. State whether the solution is acidic, alkaline or neutral.
- 3Working Scientifically
A student measures the length of a metal rod five times: 62.1 cm, 62.4 cm, 62.0 cm, 62.5 cm, 62.2 cm. Calculate the mean length of the rod.
- 4Science: Working Scientifically and Practical Skills Set 2
A pupil wants to find out whether increasing the concentration of a salt solution affects the boiling point of water. Suggest one variable, other than salt concentration, that should be kept the same for this to be a fair test.
- 5Science: Working Scientifically and Practical Skills Set 3
On a graph of temperature (y-axis) against time (x-axis), a straight line rises from (0 s, 20 degrees C) to (40 s, 60 degrees C). Calculate the gradient of this line, and state what it represents.
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