Science experiment kits are educational packages that contain all the materials and instructions needed to conduct various scientific experiments. These kits are designed for students and hobbyists, making science accessible and fun. They often cover topics like chemistry, physics, biology, and earth science, allowing users to explore different scientific principles hands-on. Typically, science experiment kits include items such as test tubes, beakers, chemicals, and tools, along with a detailed guide. They can be used in classrooms or at home, promoting learning through practical experience. Popular brands may include Thames & Kosmos and National Geographic, which offer a range of kits for different age groups.