Ecological globe

[Primarygun]

I'm going to make a globe which contains organism, mainly animals and plants.

What do you suggest me to put it inside?

There is a competition for me.

I am required to make them alive as long as possible. No extra things can be put inside after the globe is sealed.

I think it's quite like the matters in geography.

[YT2095]

Plants, lots of them, to provide sustainable food and O2 levels, plants like water as do animals, so you`ll need that, as well as light, but not a "HOT" light, as the internal temp can get extreme (like in a greenhouse).

I`de also have a propper day/night cycle too, say 16 on (daylight) and 8 off (night time).

that`s about it for now

[Aardvark]

Pond water.

 

It's easy, i did it at school. Just fill up with samples of water from a few different sites and wait. Algae, plants, invertaberates all appear and after a short while develop a stable eco system. Just make sure there is sufficent bio mass (ie, a couple of handfuls of rotting leaves.)

 

It'll last pretty much indefinetely and each one is different so you can have fun comparing if you do more than one.

 

Have fun.

[Primarygun]

Ya the ecosphere is very interesting.