Shade Balls in Los Angeles Reservoir
Authored by Steve Dull
Science
12th Grade
NGSS covered
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of shade balls in the Los Angeles Reservoir?
To reduce evaporation
To prevent bird perching
To cool the water
To block sunlight and prevent the formation of carcinogenic Bromate
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are shade balls black?
To absorb more energy and heat up the water
To make them more visible in the reservoir
To deter birds and wildlife
To block all light from reaching the water and triggering the Bromate reaction
Tags
NGSS.MS-ETS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What material are shade balls made of?
Glass
Metal
High-density polyethylene
Rubber
Tags
NGSS.MS-PS1-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the cost of shade balls?
1 shade ball for $1
10 shade balls for $1
100 shade balls for $1
3 shade balls for $1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do shade balls reduce evaporation?
By absorbing more energy and heating up the water
By blocking sunlight and preventing the formation of Bromate
By increasing air flow over the water's surface
By creating a layer of moist air
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of shade balls in relation to algae growth?
To promote algae growth
To control algae growth
To remove algae from the water
To provide a habitat for algae
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the shape of the shade balls?
Round
Square
Hexagonal
Triangular
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