Daily Practice · 13+ Common Entrance

Daily Practice - 13+ Common Entrance

31st March 1996

5 questions · Years 7-8 · 744 questions in this band

1
Chemistry: The Periodic Table and Separating Mixtures
Explain why a pencil, not a pen, must be used to draw the baseline on chromatography paper.
2
Chemistry: Reactions, Energy and Rates
A student dissolves ammonium nitrate in water and the temperature of the solution falls. State whether this process is exothermic or endothermic.
3
Chemistry: Metals, the Reactivity Series and Environmental Chemistry
Explain why attaching a block of zinc to the hull of a steel ship helps to protect the ship from rusting.
4
Physics: Forces and Energy
State whether the main force acting when a compass needle points north is a contact force or a non-contact force.
5
Physics: Electricity, Magnetism and Waves
Name the circuit component whose symbol is a circle with a cross inside it.

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