Palestinians have been attempting to salvage materials from their homes, after Israeli shelling reduced many to rubble.
Israel launched dozens of strikes in Gaza city, amid its search for an Israeli soldier it claims was captured by Hamas fighters.
At least 35 Palestinians were killed in the bombardment in Rafa, a Palestinian health official said.
There have been two days of quiet in Gaza. No rockets or missiles, no more destroyed houses, no more ambulance sirens screaming.
A three-year-old girl has been rescued from Gaza and brought to London for life-saving heart surgery.
A small team of NHS doctors and surgeons is travel to Gaza to set up facilities and establish how best to use specialists and equipment.