

Hydroponic Systems and Techniques
Interactive Video
•
Science
•
6th - 7th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why did the narrator initially avoid making many hydroponic videos?
Most people prefer traditional gardening methods.
Hydroponics is too complex to explain.
Hydroponics is not effective.
The narrator doesn't have enough experience.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What materials can be used to start plants in a hydroponic system?
Rock wool and perlite
Soil and compost
Sand and gravel
Clay and peat
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does the narrator use plastic bags inside the coolers?
To prevent water leakage
To enhance root growth
To add nutrients
To keep the plants warm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final resting place for the plants in the hydroponic system?
A large pot
A styrofoam cooler
A wooden box
A glass jar
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct order for mixing the nutrient solution?
Epsom salt, master blend, calcium nitrate
Calcium nitrate, master blend, epsom salt
Master blend, epsom salt, calcium nitrate
Epsom salt, calcium nitrate, master blend
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is nutrient lock and how can it be avoided?
A condition where nutrients are unavailable; mix in the correct order
A condition where plants grow too fast; use less water
A condition where leaves yellow; add more sunlight
A condition where roots rot; increase aeration
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the narrator ensure the tap water is safe for plants?
By boiling it
By letting it aerate for a day
By adding chemicals
By filtering it
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