making a test tube ready for an ant colony!
step 2: make a cotton ball
step 3: push the button ball until it reached the water
step 4: make another cotton ball
step 5: put the cotton ball at the end of the tube so that the ant queen and workers won't escape
step 6: enjoy!
if you have done it correctly, you should have something like this:
note: for smaller species like temnothorax a smaller test tube is needed