HYDROPONICS
101
101
The fundamental definition of hydroponics, representing how plants are grown.
What is - Growing plants in water with added nutrients, without soil?
This term describes the physical substance that gets dissolved by a solvent to form a complete solution.
What is - A solute?
The distance in inches that corresponds to exactly 4 yards of linear tubing.
What is - 144 inches?
The optimal electrical conductivity (EC) level for growing lettuce to ensure best nutrient consumption.
What is - 1.6 mS/cm?
The mass percentage concentration of a nutrient formulation containing 18 g of salt dissolved in 92 g of water.
What is - 16.36%?
The room location where our high school classes manage and house our hydroponics growth systems.
What is - The Boiler Room?
The specific multi-nutrient formulation (NPK) used as the high-quantity 'Master' building block in our solution chemistry.
What is - Masterblend?
The direction the decimal point moves when performing a metric conversion from a small unit to a large unit (e.g., from milliliters to liters).
What is - To the left?
The optimal pH level of a liquid hydroponic nutrient solution to maximize mineral availability for plant root systems.
What is - pH 5.8?
The volume percentage concentration of a system sanitizer solution prepared with 32 mL of ethanol in 150 mL of total volume.
What is - 21.33%?
The two vegetables we are growing in our classroom setups.
What are - Lettuce and tomatoes?
The exact weight of Masterblend and Epsom Salt dissolved to form our Bucket A concentrated stock solution.
What are - 400 grams of Masterblend and 200 grams of Epsom Salt? (Accept: a 2:1 ratio)
Between 2 tons, 4,001 pounds, and 500 kilograms, this represents the heaviest mass.
What is 4,001 pounds?
The diagnostic indicator signaled when our daily system monitor measures an EC reading below 1.2 mS/cm.
What is - Nutrient depletion or deficiency?
The mass of pure NaCl salt needed to prepare exactly 350 g of a 28% saline stock solution.
What is - 98 grams?
The precise laboratory equipment used by students to measure liquid volumes.
What is - A graduated cylinder?
This common chemical compound (Magnesium Sulfate) is vital for photosynthesis and chlorophyll production in leafy greens.
What is - Epsom Salt?
The linear distance in meters of a row of plants measuring 0.49 kilometers.
What is - 490 meters?
The equivalent microSiemens (µS) of a concentrated stock solution measuring exactly 9.7 mS.
What is - 9,700 µS?
The concentration in ppm of a heavy metal lead contaminant when 9 mg of lead is detected in 1 L of source water.
What is 9 ppm?
Two major ecological and resource benefits of growing crops hydroponically compared to dirt farming.
What are - Less space needed and significant water conservation?
The specific calcium-rich compound that is kept entirely in Bucket B to prevent chemical precipitation with sulfates and phosphates.
What is - Calcium Nitrate? (400g dissolved in Bucket B)
Arranged from smallest to largest, the correct order of the following customary units: 2 gallons, 9 quarts, 31 cups, and 14 pints.
What is - 14 pints, 31 cups, 2 gallons and 9 quarts?
This is the PPM concentration of a seedling solution with an EC of 2.9 mS.
What is - 1,450?
The mass of pure water that must be added to 40 g of salt to create a 15% salt solution.
What is 226.67 grams of water?