Shazizzle: What are the main stuff under the following topics~
1. Classification of organisms
2. Sexual and Asexual reproduction in plants
3. Seed Germination
4. Transpiration
I'm really bad at experiments. 
Help, please? Pretty please? 
Yeah, we all are ^^. :/
Well, under classification, we've got the group of invertebrates. i.e The arthropod group. consisting of arachnids, crustaceans, myriapods and insects. I've seen questions in the paper about their external features, so you should revise those.
Then, you can have a look at the vertebrate classes, amphibians, fish, mammals, birds, reptiles. Those are possible.
In plants, you should know the basic methods of Asexual reproduction. They don't usually ask many such related questions, but still, you know, the runners, rhizomes, tubers, corns, bulbs, cutting, grafting etc.
Tubers, i.e the potato has been asked before.
Seed germination is important. You need to know how the dry mass of a seed changes when it germinates.
There's a general trend: The mass initially decreases as the nutrients stored in the seed cotyledon are made us of for growth.
However, once the shoot and leaves develop, the mass then increases, as the plant grows, and also as photosythesis can take place thus producing more glucose which in turn may be used for respiration to form ATP energy and thus growth, so an overall increase in mass.
They've asked quite a lot of questions relating to transpiration. Mainly related to wilting. You need to know turgidity, and thus that the cells are flaccid during wilting i.e plasmolysis has occurred and the plant has lost it's support via the transpiration stream. Then there's knowing of the stomata i.e when they are open and when they are closed.
Recently, there are questions relating to food tests. You need to be able to describe tests.
You can easily gain free marks if you
1. Mention grinding up the samples to increase surface area
2. Talk about taking the same apparatus i.e fair tests and controlled variables for all
3. And repeating for accuracy
4. And if you mention a safety precaution like gloves, water bath, goggles, lab coat etc.
Remember including such points.
And usually, the questions relate to comparison. Comparing one fruit with another. If you see the mark schemes, you'll come to know, that all you have to do is describe what you see. Every detail can be written. Even the size and shape!
Good Luck!
