1. Fire
If for instance when a bunsen burner is left un attended, it can catch flames and lead to explosions in the lab.
2. Cuts
When using sharp tools for dissection, students should receive instruction in how to safely handle blades. In addition, when disposing of sharp items, like broken glass, needles, or razor blades used for cutting lab materials, be sure that students know to carefully wrap these items before carrying to the trash.
3. Heat burns
Handling chemicals like strong acids can be very dangerous, this can lead to burns. Always wear your gloves in the lab.