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The scenario is aimed at 7th grade students, at their second year in studying Physics. They will need background knowledge about forces, especially gravity, and movement( translation and rotation). They will also use previous learned methods to record experimental data and graphical representation of physical quantities or experimentally determined variations. The 5 hours scenario is divided according to a sequence of steps that correspond to scientific investigation, to answer the problem to be investigated: ' The hardest thing to keep is the balance ...'.

Students will measure the Earth’s circumference based on Eratosthenes’ experiment, which he carried out at 3rd century B.C.

Light pollution, also known as photopollution or luminous pollution, is excessive, misdirected, or obtrusive artificial light.

In this scenario, students will investigate the phenomenon of solar eclipses using both tabletop and eLearning tools .

The students make a short study of heath and molecular velocities using Science Centre To Go Mini Heater et Cooler exhibit. The demonstration of the experiment is based on advanced visualisation techniques.

Evidence that the perceived color of an object depends on the material it is made and the light incident on it.