Science Week Quiz

Chemistry Q.1 - Give the formula of an ammonium ion.

Chemistry Q.2 - Name an isomer with the molecular formula C4H10O

Chemistry Q.3 - To test for sulphate ions, add acidified barium chloride. What is a positive result for this test?

Chemistry Q.4 - Which is the most reactive halogen from the list?

• Fluorine

• Chlorine

• Bromine

• Iodine

Chemistry Q.5 - How does an aqueous solution conduct electricity?

Biology Extended Round: Fill in your final answer below

Physics Q.1 - Order the following from high frequency to low frequency.

• Microwaves

• Visible Light

• Infrared

• X-Rays

• Ultraviolet

Physics Q.2 - What does a vector quantity have that a scalar one does not?

Physics Q.3 - Name an electrical component that only allows current to flow in one direction.

Physics Q.4 - The half life of a radioactive source is 15 years, what percentage has not decayed after 60 years?