Interesting physics.

1. Nothing can burn again, if you have already burned.

2. round bubble because the air inside the same pressure on all parts of the surface of the bubble is equidistant from its center.

3. Black color attracts heat, white reflects it.

4. Whip makes a snapping sound because its tip moves faster than the speed of sound.

5. Gasoline has no definite freezing point - it can freeze at any temperature from -118 C to -151 C. The freezing of gasoline does not become completely solid, more like rubber or wax.

6. The egg will float in the water, which have added sugar.

7. Dirty snow melts faster than clean.

8. Granite conducts sound ten times faster than air.

9. Water in liquid form has a high molecular density than solid. Therefore, ice floats.

10. If a glass with water to increase the size of the Earth, the molecules of which it is composed will be about the size of a large orange.

11. If the atoms to remove space and leave only their constituent elementary particles, then a teaspoon of this "stuff" will weigh 5,000,000,000,000 pounds. It consists of the so-called neutron stars.

12. The speed of light depends on the material in which it extends. Scientists were able to slow down the movement of photons up to 17 meters per second, passing them through the ingot rubidium cooled to a temperature very close to absolute zero (-273 Celsius)