Our Army Visitor

Visit from an Army
Sergeant, 23rd January, 2008

One of the Dads in our class came to tell us all about being in the army. He showed us some army things and he explained how they all work. He uses a lot of science in his job. Here are some of the science topics he covered in his talk:

· Torches: how it takes 40 minutes to get your night vision working. If you use a torch then your night vision is affected so instead of a white torch you should use a red torch.
· How a compass works, how the needle always points North and how there are three North Poles, magnetic, real and grid poles.
· Protecting our eyes and ears, and using a gas mask.
· Chemical glow sticks. Bending the stick will start the chemical reaction and it will glow for up to eight hours.
· Cooking outdoors, essential diet and nutrition. Getting enough liquids.
· Surviving outdoors, staying warm and dry. Making a camp.
· Camouflage and camouflage paint.
· First aid kits.