Why do you think the water formed in the glass with the leaf? ...

[HCHenry]

Why do you think the water formed in the glass with the leaf? Where did it
  come from and how did it get there?

 
  What will be an ideal response?

Question 2

Why did the water move down the tube when salt water was added to the soil?
  Under what circumstances might this happen in nature? What consequences
  would it have for the plant?

 
  What will be an ideal response?

[amandanbreshears]

Answer to Question 1

The water came from the leaf and the glass of water below. Through capillary action,
the xylem in the leaf draws in water that is then released in vapor form through the
stomates. As the water vapor condenses, it forms water droplets on the glass.

Answer to Question 2

The presence of salt in the soil causes water to be lost from the roots. The salt causes
the available water to be much less plentiful in the soil. Through osmosis, the water
moves from an area where it is plentiful (the root) to an area where it is less
plentiful (the salty soil