(a) Water cycle

Condensation in clouds
Precipitation/Rainfall
Evaporation of water from water bodies/river/sea/ ocean
Evaporation of water from soil/ground
Excretion by animals
Drinking of water by animals
Perspiration/sweating/respiration by animals
Erosion/run-off of water from soil/ground
Decay in plants/ animals.

(b) Experiment:
-A young herbaceous plant/balsam/water leaf/ plant is uprooted/cut a twig of a young herbaceous plant under water
- the cut twig/the roots are washed with water; to remove the soil particles
-a solution of a dye/eosin/red ink is made in a beaker
- the roots of the plant/cut twig is immersed in the solution.
- and set up exposed to sunlight
-and allowed to stand for one to six hours
-remove the plant from the solution and wash the roots/stem/of twig thoroughly
- make transverse sections of the root/stem
- observe the sections under the microscope
- it will be observed that only the xylem tissues pick the dye/is stained re-indicating that water is conducted in the xylem tissues.