Properties of Metalloids-What are the Physical Properties of Metalloids? What are the Physical Properties of Metalloids? The Physical properties of Metalloids are the characteristics that can be observed without changing the substance of the elements in a group into other substances.hat are the Physical Properties of Metalloids? The Physical properties of Metalloids are the characteristics that can be observed without changing the substance of the elements in a group into other substances.
Quick Answer. Hummingbirds fly backwards, and they are the only birds capable of doing so. When using this unique ability, hummingbirds may reach speeds of 25 to 30 mph as they go. These birds have flexible wings that they can rotate in swift circles to help fly in reverse.
The ostrich (Struthio camelus) is a large flightless bird that lives in Africa. They are the largest living bird species, and have the biggest eggs of all living birds. Ostriches do not fly, but can run faster than any other bird. They are ratites, a useful grouping of medium to large flightless birds. Ostriches have the biggest eyes of all land animals.