We are writing our end of semester exams for Science can you please give us likely questions

Here are some likely questions you might encounter in your Science end-of-semester exams:

1. Physics: Explain the difference between speed and velocity. Give an example where an object has constant speed but changing velocity.
2. Biology: Describe the process of photosynthesis, including the main reactants and products. Explain its importance for life on Earth.
3. Chemistry: Differentiate between a physical change and a chemical change. Provide two examples for each type of change.
4. General Science: Outline the steps of the scientific method. Why is it important for scientific investigations?