Science Park Models

A lever is a simple machine consisting of a bar supported at some stationary point along its length and used to overcome resistance at a second point by application of force at a third point. The stationary point of a lever is known as its fulcrum. The principle of a lever can be explained as when two equal forces acting in opposite directions, i.e., clockwise and anticlockwise, and applied to a uniform lever at equal distances from the fulcrum counteract each other and established a state of equilibrium, or balance, in the lever. First order levers have the turning point (fulcrum) between the load and the effort.

Description: Wonderful play model for explaining that for every action there is an equal and opposite reaction.

The equilibrium of any object is governed by the position of its center of gravity. This fascinating model explains it with fun.

The Archimedes'' screw, also called the Archimedean screw or a screw pump is a machine historically used for transferring water from a low-lying body of water into irrigation ditches.

An inclined plane is a flat surface that lies at an angle relative to level ground used to form a ramp to raise and lower a load. The load can be as simple as a person, i.e. walking up a ramp, or larger such as trains hauling materials along a graded track. The steepness and length of the plane help to distribute weight and reduce work that is needed to lift or lower materials from one elevation to another.

Description: Here a radio is powered by solar energy a conventional energy resource that is insisted here.

DNA is a nucleic acid that contains the genetic information for the reproduction of life. Its shape is that of a double helix and its appearance is somewhat of a twisted ladder or spiral staircase. It is used in science park or High school for the DNA demonstration.

The periodic table is a tabular display of the chemical elements, organized on the basis of their atomic numbers, electron configurations, and chemical properties. Elements are presented in increasing atomic number.

Description: A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice exhibiting long-range order and symmetry.

A vortex is a spinning, often turbulent, flow of fluid. Any spiral motion with closed streamlines is vortex flow. The motion of the fluid swirling rapidly around a center is called a vortex. The fluid-filled in the vortex is subjected to centrifugal force creating funnel-shaped formation like the tornado.

The center of gravity is defined as the average position of weight distribution, in other words, refers to the single point associated with an object where the force of gravity can be considered to act. Here a bird suspended at its beak tells the story of the center of gravity.

A pulley is a wheel on an axle that is designed to support the movement of a cable or belt along its circumference.Pulleys are used in a variety of ways to lift loads, apply forces, and to transmit power. The mechanical advantage gained by combining the number of pulleys is explained here.

Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. This model is a miniature of a hydroelectric power plant with the structure of a dam and electric power generation system.