The following experiment is a fun and easy way to see the effects of gravitropism on a plant
These are the materials needed to make your own upside down plant:
-Two sponges
-Small bean plant
-String
-Scissors
-Water
-Thumbtack
Methods:
Pour water over sponges until they are
moist.
Take small potted plant out of pot and remove much of the
soil. (We used a small bean plant that we planted in a
plastic cup.)
Sandwich the root ball of the plant between two
sponges.
Tie the string around the sponges lengthwise and widthwise.
Then hang the plant upside down in a sunny window with a
tray under it to catch excess water.
Keep the sponges watered and in a couple of days the plant
will begin to turn around and grow
upright!!
To
see gravitropism in action press play and watch the plant
grow upwards.