Turgor Pressure

7.7.C demonstrate and illustrate forces that affect motion in everyday life such as emergence of seedlings, turgor pressure, and geotropism

​7.13.A investigate how organisms respond to external stimuli found in the environment such as phototropism and fight or flight

Key words:
Tropism = turning (in response to external stimuli)
Photo = light 
Geo = earth
Gravi = earth
Hydro = water
​Thigmo = touch
Auxin = hormone
Towards stimuli = positive
Away from stimuli = negative

Thigmotropism = response to touch.
Plants may respond to being touched by closing.
Plants attach to other object such as a vine growing on a tree or fence.