An Earthquake is a sudden tremor or movement of the earth's crust, which originates naturally at or below the surface.The word natural is important here, since it excludes shock waves caused by French nuclear tests, man made explosions and landslides caused by building work. There are two main causes of earthquakes.n Earthquake is a sudden tremor or movement of the earth's crust, which originates naturally at or below the surface.
Definition of TANGRAM. : a Chinese puzzle made by cutting a square of thin material into five triangles, a square, and a rhomboid which are capable of being recombined in many different figures.See tangram defined for kids. ADVERTISEMENT.efinition of TANGRAM. : a Chinese puzzle made by cutting a square of thin material into five triangles, a square, and a rhomboid which are capable of being recombined in many different figures. See tangram defined for kids. ADVERTISEMENT.
Here's some puzzling fun for the kids from ancient China! Tangrams, seven pieces of cleverness, are an ancient Chinese puzzle which is still mind-bending and intriguing today! We've developed some fun printable tangram puzzles which are perfect for kids - they help with logic and thinking skills, dexterity .. and they are just plain puzzling fun! Explore our tangram puzzle printables below... How to play