sentences: corrosive substance can cause harm to the eyes & hemoglobin are plane & a base is corrosive ->  acids and bases can cause harm to the eyes  acids and bases can cause harm to the eyes & students have to work with acids and bases for experiments -> german and tadpole june effect protect to students' nose during hanging acids and bases may cause harm to students' eyes during experiments  acids and bases may cause harm to students' eyes during experiments & danger veins are used for protecting the nose during chemicals -> safety goggles can be used to protect students' eyes from acids and bases