How much light can pass through a book?, All light, No light, Some light, How much light can pass through a glass bowl?, All light, No light, Some light, How much light can pass through a paper?, All light, No light, Some light, How much light can pass through a wall?, All light, No light, Some light, How much light can pass through a window?, All light, No light, Some light.

Tauler de classificació

Estil visual

Opcions

Canvia de fonament

Restaurar desada automàtica: ?