C1 – Higher Tier Revision
All; To review each of the eight mini topics and produce
flash cards for each of the higher tier concepts
Most; To use the flash cards you have produced to
answer a mini quiz on the high level concepts
Some; To brainstorm any areas that you want to go
• You now have seven days left to revise
properly for your first GCSE examination.
• We are going to concentrate on higher tier
ideas in class.
• After school Revision sessions can be
organised if people are interested.
Flash Cards – 30 Min
• I am going to go through eight higher level
• One for each of the topics, at the end of
each mini revision session , you need to
produce a mini flash card which will help
you answer the mini quiz at the end.
• You need to summarise the information
that I give out.
• Meat – Proteins in Eggs or Meat change shape during
cooking and are denatured.
• There are four types of protein
• 1. Primary – Amino acids are in a single chain
• 2. Secondary – The single chain goes into a coil
• 3. Tertiary – The coil is then folded up with new
• 4. Quaternary – More than one folded coil is joined
• Potatoes – When a potato is cooked its cells walls break
down and the starch grains burst making it easier to eat.
• Active Packaging – changes the conditions of the food
• It has a polymer and a catalyst which sucks up all the
oxygen out of the packaging.
• Intelligent Packaging – shows how fresh the food
• An indicator circle in the middle darkens as the food gets
• Mayonnaise – The egg yolk combines the oil and the
vinegar in mayonnaise.
• One part is hydrophobic and attaches to the oil.
• One part is hydrophilic and attaches to the vinegar.
• 1.Perfumes evaporate easily and are said to be
• They only have weak attractions between their
particles and evaporate easily and move through
the air through diffusion.
• Diffusion is the movement of particles from a
high concentration to a low concentration.
• 2. Water does not dissolve nail varnish. This is
because the force of attraction between two
water molecules is stronger that between a
water and a nail varnish molecule
Making Crude Oil Useful
• Crude Oil is separated by fractional distillation because
the fractions have different chain lengths.
• This means that the forces between the molecules are
• Long chains like bitumen have strong forces between
them and therefore have high boiling points.
• Small chains like petrol has weak forces between them
and therefore have low boiling points.
• Long chains turn to liquids before small chains.
• Political Pressure – Because only a few countries
produces crude oil they can change the price as they
wish which causes political problems.
• Drawing Displayed Formula’s is easy
• Take the monomer
• A monomer is unsaturated – has double bonds
• A polymer is saturated –has no double bonds.
• You can test to see if something is unsaturated
by adding an alkene to bromine solution.
• If a polymer is there the bromine goes from
orange to clear.
• Gore-Tex is breathable and waterproof.
• The inner layer is made of PTFE which is
• This stops the water getting through.
• It is expanded to form a membrane with
little holes which lets water droplets
escape of sweat escape.
Using Carbon Fuels
• Choosing Fuels
• Coal is not good for a car because it does not
ignite easily and produces pollution.
• Petrol and diesel are liquids so are good fuels to
circulate in engines.
• Complete combustion
• Fuel + Oxygen Carbon Dioxide + Water
• CH4 + O2 CO2 + H2O
• This needs to be balanced so the number of one
elements is the same on both sides
• CH4 + 2O2 CO2 + 2H2O
• Bond Breaking is an endothermic process
• Bond Making is an exothermic process
• If you need more energy to break the bonds than make
new bonds then a reactions is endothermic overall.
• If less energy is needed to break bonds than make new
bonds then a reaction is exothermic overall.
Higher Tier Quiz – Use the flash
cards to see if you can win the
quiz. – 15 Min
• 1. How does heating a protein change its shape?
• 2. Why does heating a primary protein do nothing?
• 3. Why are potatoes easier to eat after they are cooked?
• 4. How does active packaging keep food fresh for longer?
• 5. Name the two parts of an egg yolk that stops the mayonnaise separating.
• 6. What does the word volatile mean?
• 7. What stops you removing nail varnish with water?
8. What allows us to separate fractions in a distillation column?
• 9. Do long or short chains have higher boiling point?
• 10. Look at the monomer, draw the polymer.
• 11. Is an alkene saturated or unsaturated?
• 12. What property of PTFE stops you getting wet on a hike?
• 13. Why would you not use coal in a car engine?
• 14. Write a balanced equation for the complete combustion of propane?
• 15. In a reaction, which process gives energy out?
What do I need to go through
Brainstorm – Last Chance
Higher Examination End of Unit
Review – 15 Min
• Review of the mark scheme.
• What parts did you get wrong.
• How can you improve your overall higher
Energy Calculations – 15 Min
• See Energy Powerpoint