S

S

Sample -A part of a group chosen to represent the whole group.

Scale -The ratio of a distance on a map, globe, or drawing to actual distance.

Scale Model –A model of an object in which all parts are in the same proportions as in the actual object.

Scalene Triangle –A triangle with sides of three different lengths. No two angles of a scalene triangle have the same measure.

Scientific notation –A system for writing numbers in which a number is written as the product of a power of 10 and a number that is at least 1 and less than 10. scientific notation allows you to write big and small numbers with only a few symbols.

Semicircle – Half of a circle.

Similar -Exactly the same shape but not necessarily the same size.