Defensive structures

This week we Mr Wong invited someone to talk to use about defense and he was for the NZ Defense Force and his name was Isaac and he told us about explosion. guns are big and they kill lot of people and then when he left we have to blog it today. we got told the 4 layers it was shape,materials.

We learnt the defenses witch was turrets,land marks,camouflage. And the type of bombs are the dumb bombs, motor, grenade,smart bombs,ICBM's,guided missiles,c4,dynamite. Then after that we did a challenge we had to make a structure out of straws and paper we had to try and protect the helicopter from the fire storm.