Lots of requests for challenging experimental design questions - here is a huge pack of awesome questions that you will definitely find useful

Please like and share (and click on a advert to help with the hosting costs !)

Top Tips !

• Never write "amount" you mean mass, volume or concentration.

• Refer to "a control experiment" or "a variable that I will control (and then name the value and method of control)" but never to "a control variable"

• Independent variable is what you change.

• Dependent variable is what you actually measure in the experiment (not rate).

• Organisms vary from each other unless they are clones !

• When you suggest improvements think about improving the method rather than the equipment (e.g. control a variable that wasn't previously)

Here is some advice on tables and graphs. And here on measurement and language.

Here are 13 pages of practical based questions in pdf form.

Please "like" and share with your friends if you find that this helped your improve your understanding