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.
Peregrine Falcon killing a duck in mid-air. The Peregrine Falcon is the worldâs fastest animal; it can reach speeds of more than 240 mph during dives. It uses that speed to kill other birds in mid-air. Hereâs a video of a Peregrine diving and killing a duck, shot with a camera mounted on the falconâs back.