The answer is.... Resource!
The category is insect!
To measure a drop of water you should get a measuring cylender. Say you put 100 drops to make the results more accurate. Lets say 100 drops of water in a measuring cylender would show 200cm^3 . So to find the volume of 1 drop of water instead of 100 you would divide 200 by 100 which would give you 2cm^3 for 1 drop of water
When you put a drop of food coloring into a glass of water, the water will turn that color.
Since jellyfish float in the water with their tentacles hanging down, you would say they put food into their mouth.
It flattens the drop to an even thickness. Otherwise surface tension would draw the drop into a ball, which will distort light passing through it.
no
bread
yes
Yes
You don't put water in the salad but you wash the fruits or vegetables.
a good science fair project about energy is a water cycle and would be put in the Energy Awareness category
You would put DDS files in a format. This is on deviant.