Cob (material)

Cob is a material that people sometimes use to build houses. Imagine you are playing with your sandcastle kit at the beach. You take some wet sand and scoop it up with a shovel. Then you shape it with your hands into a ball or a tower. This is just like how people make cob!

They mix clay soil or earth with straw, water, and sometimes sand. Then they use their hands and feet to mix everything together until it becomes a sticky and gooey ball, just like your wet sand. They can mold this mixture into bricks or apply it in layers to form walls or even whole houses.

Cob is a very strong and durable building material that can last for hundreds of years. It also has great insulation properties, which means it can keep you warm in winter and cool in summer. Plus, it's eco-friendly because it uses natural and local materials, and it doesn't require much energy to produce. So, if you ever decide to build a sandcastle house, remember that cob is a great option for a real one too!