Hemos descubierto que hay cosas que existen y no podemos ver. La materia se puede encontrar sólida, líquida o gaseosa. El Dióxido tiene una densidad diferente al aire y por eso apaga la vela al caer encima.

When we are dressed in black and it's very sunny we are very hot, but if we are dressed in white we are better Can we demonstrate dark colours absorb the heat better? __Yes, we can demonstrate it using balloons and a magnificent glass. __ No, we can't, because we can’t measure the temperature of colours. Procedure Inflate the balloons. Wear sunglasses. Place the magnificent glass between the balloon and the sun. Control the time until the balloon explodes. Compare the different times obtained by different colours. Light balloons took more time to explode, the darker is the colour the less time it needs to explode. We have demonstrated that dark colours absorb more energy (heat) than light colours because they don’t reflect any light, so they keep all the energy. That, makes dark balloons explode before light balloons.