Hydro Systems
What kind of system are you going home with today?
DWC: Deep Water Culture
Name three of the growing criteria for plants:
ex/ Sunlight, Water, Nutrients, Soil, Air, Space
True or False: Plants need 24 hours of sunlight to grow.
FALSE! Plants need sleep and darkness as well!
Which system was recommended for tower hydroponics gardens?
Drip systems
Name three environmental factors that challenge soil-grown farming?
ex/ weather, heat, poor soil, lack of space, pests&critters, water scarcity, etc...
What organization is experimenting with hydroponics to feed space stations?
NASA!
Which system uses capillary action to water/feed plants?
1) Nutrient Film Technique
2) Ebb and Flow Systems
3) Wicking Systems
3) Wicking systems
Why are pesticides not necessary for hydroponics?
No bugs, deer, etc....
Which culture used floating forests to feed populations?
The Aztec civilization was well known for hydroponic crops.
What does NFT stand for?
A) Nutrition Flow Type
B) Nutrient Film Technique
C) Nitrogen Fixation Tripod
B)Nutrient Film Technique
Name four benefits of hydroponic farming:
ex/ no pesticides, faster growth, less water usage, no water waste, space saving.
Name two hydroponics life science activities you could do in the classroom.
ex/ pesto taste test, materials order, farmers market, why is sleep important, etc...
What is the difference between the Kratky and the Wick hydroponics systems?
The Kratky method of hydroponics utilizes the plant's roots as the wick.
What percentage does hydroponics yield higher than soil farming?
Hydroponics has a 20-25% higher yield than soil farming.
Name three STEM classroom activities based on hydroponics.
Ex/ growth charts, nutrient measuring (graphs and fractions), construction of plant homes (engineering),