Praying Mantis Life Cycle Stages, Children can see how Praying Mantises change as they grow with Insect Lore’s Praying Mantis Life Cycle Stages. Four stages of Mantis development: Soft Egg Case, Hardened Egg Case, Nymphs and Adult Praying Mantis.
Liquid Propane Bunsen Burner, No-Tip Safety with expanded base prevents tipping, even with hoses connected and easy carry handle for safe handling. Similar to the Basic Bunsen, features air to fuel ratio via an air flow adjustment sleeve, 6.5inch .