Daily Practice · 13+ Common Entrance

Daily Practice - 13+ Common Entrance

18th July 1997

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

1
Biology: Respiration, Digestion and Gas Exchange
State one way the alveoli are adapted for efficient gas exchange.
2
Chemistry: Materials
The density of olive oil is 0.92 g/cm^3. State, with a reason, whether olive oil would float or sink in water (density 1.0 g/cm^3).
3
Chemistry: Acids, Reactions and the Periodic Table
Describe the test for carbon dioxide gas, and state the positive result.
4
Chemistry: The Periodic Table and Separating Mixtures
Explain why a pencil, not a pen, must be used to draw the baseline on chromatography paper.
5
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.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1997, including the monthly compilation PDF.