[header] How to choose between the sat or act test [title] Determine how quickly you can work through the exam. [step] The act has a science section, but the sat does not. If you have a strong foundation in biology, earth science, and physics, the act may be a better choice for you. 
If you take the act, you will have to interpret charts, graphs, and understand scientific hypotheses. [substeps] If you struggle in science or are not confident about your abilities, the sat is probably a better choice for you.