Topics often covered in fourth-grade science books include topics in life science, earth science and physical science. As Great Schools points out, although state standards differ regarding what should be taught in fourth-grade science classes, many states base their curricula on the National Science Education Standards.
Life science topics typically covered in fourth-grade science books include classification and life cycles of plants and animals. Students also learn about different environments.
Fourth-graders learn about the solar system, weather, rocks and minerals in earth science. They also learn how landforms change over time.
In physical science, fourth-grade science books typically cover magnetism, electricity and light. Fourth-grade science students also typically learn what a scientist does and begin to conduct simple experiments.