How to do it:

Learn about how to save energy or recycle. Decide on three ways your Colony could save energy or recycle to help save the environment.
Try different kinds of fairly traded products. Talk about the benefits of fair trade in the world.
Learn about endangered animals and transform your Colony into endangered animals by making masks or costumes. Why are they endangered and how could we save them? You might include polar bears, Siberian tigers, white rhinos, mountain gorillas and loggerhead sea turtles.
Talk about the problems some people have finding clean and safe drinking water. Make a water filter. You could make it out of a soft drink bottle and use things like cotton wool, pebbles and kitchen roll to filter your water.