They're designed to withstand a great deal of heat and also be very aerodynamic to minimize drag. Of course when things go wrong, sometimes they do burn up – we saw that with the Columbia tragedy.
They go really fast
The rockets have heat cells on the rocket
They burn up because of friction in the atmosphere
In the atmosphere
Most rockets are designed to jettison off before breaking the Earth's atmosphere. There are parts that comprise the secondary push, while in orbit, that burn up when falling back towards home. Anything else out there is littering the way that satellites and junk does.
THe Moon doesn't have an atmosphere, which is what protects Earth from most meteorites.
No. The atmosphere burns up the meteorite.
They may burn up while travelling through the earth's atmosphere.
Atmosphere.
MESOSPHERE
Most do burn up entirely but the very largest ones do not completely burn up.
No, only specially designed rockets can go up into space. As soon as a helicopter reaches our atmosphere boundaries, it would burn up. Rockets on the other hand, have been specially made to hold such extreme temperatures. :)