the best type of internals are the ones that you can graph
5 indepentend variables with 5 repetitions for each to ensure statistical significance and reliable results. This allows for a comprehensive analysis of the data, making it easier to identify trends and correlations.
the IB is looking for 10 hours of experimental work in chem (as the whole 2 years) so its best to do an experiment.
Experiments: 27-30
tips:
no more than 300 min collecting data (less than 5 hours includes pilot experiment)
goo when your reseach question has 2 variables that are not discreet (continuous, specially independent variable)
never want your research question to be answer with one word or a yes or no. you want to discuss the relation of your variables which allows you to talk abt chem and lets you show your knowledge:
- what is the effect of X (independent, continious) on Y (dependent, continuos)
if use chatgpt: viable in a highschool lab.