Section A
* 1. (a) What is the difference between a theory and a hypothesis?
(b) Give an example of a theory and a hypothesis.
* 2. (a) What are the three main types of variables in an experiment?
(b) Give an example of each type of variable.
Section B
* 1. Design an experiment to test the hypothesis that plants grow taller when they are given more sunlight.
* 2. Analyze the results of an experiment that tested the hypothesis that caffeine improves memory.
Paper 2
Section A
* 1. (a) What is the difference between a prokaryotic and a eukaryotic cell?
(b) Give an example of a prokaryotic and a eukaryotic cell.
* 2. (a) What are the four main types of tissues in the human body?
(b) Give an example of each type of tissue.
Section B
* 1. Describe the process of photosynthesis.
* 2. Explain the role of DNA in protein synthesis.
