Read carefully. The GED science test is a reading based test. You will not have to memorize scientific formulas and facts, but you will have to understand the information and questions in the test.
Study charts. There may be a variety of charts on the GED science test and you must be able to understand the information presented on the charts and answer questions about them.
Review graphs. Graphs are also often included on the GED science test and it's important that you understand the information presented in this format.
Brush up on basic chemistry. There are often diagrams and information on chemical makeup that must be understood to pass the GED science test.
Polish your basic ecology and biology. If it's been a while since you've studied either of these areas, a brief review will be helpful in passing the GED science test.
Consider genetics. There are often a few simple questions about genetic characteristics, dominant and recessive genes and heredity on the GED science test. Review these areas before testing.