A level/GCSE bio and chem helpWatch
Is this correct? And could you please explain what water exiting at day at night has to do with this? (just at gcse level)
Hi! My name is Leah and I’m a second year a level student doing biology and chemistry. If you have any questions and need help just give me a message and I’ll try my best to help
Okay so what I try and do is think about the main points that you’re going to get marked for, so for example if it says ‘in what ways are the human population causing global warming’ and it was 4 marks I would have two ways and then explain them both so you get two marks for your main points and then another two for each explanation. In my experience, a lot of 6 markers are about explaining a process that has lots of steps so for that it’s about trying to explain without too many filler words otherwise it turns into waffle. Try and get as much scientific words as you can in there. If you want to send an example of a long question I can talk you through more specifically how to answer it
How would you go about answering this? Thank you very much
Okay so here we are trying to compare the heart rate between a smoker and a non- smoker during exercise. So I would say something about getting measuring both heart rates before the exercise so you have a value to compare with at the end. Then get the smoker to have a cigarette before they start exercising whereas the non smoker would not. They would both do the SAME exercise and in the SAME amount of time and be the SAME age and at the SAME time.That’s very important to mention your controls to make this a valid and fair experiment as those factors can affect your heart rate values. They would both wear a heart rate monitor whilst doing their exercise. And you could conduct the experiment over three days so they repeat the exercise so you can calculate a mean to make the experiment more accurate.