Category
page 1Science education materials
Periodic table
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). An icon of chemistry, the periodic table is widely used in physics and other sciences. It is a depiction of the periodic law, which states that when the elements are arranged in order of their atomic numbers an approximate recurrence of their properties is evident. The table is divided into four roughly rectangular areas called blocks. Elements in the same group tend to show similar chemical characteristics.

globe
thumb|Topography globe featuring physical features of the Earth
A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but, unlike maps, they do not distort the surface that they portray except to scale it down. A model globe of Earth is called a terrestrial globe. A model globe of the celestial sphere is called a celestial globe.
Newton's cradle
device that demonstrates conservation of momentum and energy via a series of swinging spheres
water rocket
type of model rocket using water as its reaction mass
Galileo thermometer
thermometer containing several glass vessels of varying density
Cartesian diver
classic science experiment demonstrating the Archimedes' principle and the ideal gas law

orrery
thumb|upright=1.2|A small orrery showing Earth and the inner planets
An orrery () is a mechanical model of the Solar System that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; however, since accurate scaling is often not practical due to the actual large ratio differences, it may use a scaled-down approximation. Mechanical planetary models are known to have existed since the Ancient Greeks, and are known by various names, but the term orrery is derived fr
Kvant
Soviet and Russian magazine focused on physics and mathematics
Hand boiler
glass sculpture sometimes used as a collector's item to measure love