Water vapour Study guides, Revision notes & Summaries

I Biological and non-biological substances both need oxygen for their existence. II The human body consists only of biological substances. I is correct and II is incorrect Characteristics of life include: growth and metabolism Examples of synthetic substances are: plastics and silicones Examples of organic biological substances are: carbohydrates and fats Examples of mineral substances are: paraffins and petroleum Matter is everything that: occupies space and has weight The ...

A method of forcing water-soluble substances into the skin using an electric current is: a. desincrustation b. vaccuum suction c. faradism d. iontopheresis - Answer-D Permenant hair removal takes place by: a. shaving b. depilation c. waxing d. electrical epilation - Answer-D Lymph drainage is performed correctly if the beauty thereapist gives: a. pumping movements on the tissue b. frictions across the tissues c. effleurages from distal to proximal d. rotating effleurages - Answer-A...

GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Version: 1.0 Final *JUN238464C2H01* IB/M/Jun23/E7 8464/C/2H For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Tuesday 13 June 2023 Morning Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at t...

CIDESCO Exam Prep Questions and Answers 2024 I Biological and non-biological substances both need oxygen for their existence. II The human body consists only of biological substances. I is correct and II is incorrect Characteristics of life include: growth and metabolism Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen Examples of synthetic substances are: plastics and silicones Examples of org...

GCSE COMBINED SCIENCE: TRILOGY 8464/C/2F Chemistry Paper 2F Version: 1.0 Final *JUN238464C2F01* IB/M/Jun23/E5 8464/C/2F For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Tuesday 13 June 2023 Morning Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at ...

CIBTAC AND CIDESCO EXAMS QUESTIONS WITH SOLUTIONS 2024 Local Infection An infection that is confined to one area e.g. pimple or boil General Infection An infection that has spread to all parts of the body e.g. blood poisoning Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:04 / 0:15 Full screen Cross Infection The transfer of infection from one individual to another by direct contact or shared utensils (indirect) ...

Practicals Chemistry AQA A-level Rated A+ Required Practical 1 - titration and making a standard solution Making a standard solution 1. weigh the required mass of solid using a sample bottle on a 2 dp balance. 2. transfer the solid into a beaker using distilled water to wash it out- preventing any solid remaining in the sample bottle. 3. reweigh the sample bottle and work out the difference. 4. Add 100cm3 of distilled water to the beaker to dissolve the solid (small volume of water) using a...

AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023 | VERIFIED. catalyst ALLOW reduces Ea IGNORE speeds up reaction IGNORE provides alternative path IGNORE proton donor IGNORE dehydrating agent 1 Question Answers Additional comments/Guidelines Mark 1.2 electric heater/heat mantle or (hot) water bath IGNORE not with a Bunsen/naked flame / gently ALLOW hot water ALLOW heating/hot plate/ sand bath / oil bath ALLOW reference to flame/Bunsen if in context of heating a water bath ...

All IB Biology Processes Latest Update with Verified Solutions Stem Cell Therapy 1. triggering the differentiation of stem cells into desired cell type 2. surgical implantation of differentiated cells into patients tissue 3. suppression of immune system so they do not get destroyed 4. monitoring so they are not cancerous eg. Stagardt's Disease (old retina cells --> new retina cells) Leukemia (bone marrow transplant) Somatic cell nuclear transfer - creation of embryonic clones...

AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023. catalyst ALLOW reduces Ea IGNORE speeds up reaction IGNORE provides alternative path IGNORE proton donor IGNORE dehydrating agent 1 Question Answers Additional comments/Guidelines Mark 1.2 electric heater/heat mantle or (hot) water bath IGNORE not with a Bunsen/naked flame / gently ALLOW hot water ALLOW heating/hot plate/ sand bath / oil bath ALLOW reference to flame/Bunsen if in context of heating a water bath NOT any ind...

AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023 | VERIFIED. there is a bung/stopper (in the end of the condenser) M2 idea of pressure build up M3 water goes the wrong way through the condenser M4 water does not fill the condenser / condenser is not cool enough owtte M2 stopper could be forced out IGNORE glass shatters / explodes water in at top / out at bottom IGNORE condenser is wrong way round ALLOW less condensing / vapour/gas/reactants/products will not condense / no...