What shape is a silo?
cylinder
name one place a culvert is used
under roads and railways
What kind of necessity in communities do silos provide
food supply
What kind of waste do silos help reduce
food waste
What is commonly contained in silos?
Grains and sugars
What are culverts used for
carrying water allowing for drainage
When there is greater food stability, what negative effect also decreases
social stress
How can silos be negative for the environment
Leaks can pollute soil and water
How should you wrap rubber bands around a silo to make it stable
wrap rubber bands densely at the bottom with fewer at upper levels
Name two shapes a culvert can take on
Circular and Rectangular
what do culverts prevent from happening to roads
flooding and collapsing
Give two reasons why culverts are good for the environment
Prevent flooding, erosion and allow animals to move through waterways
The sidewalls and the base
How do you want to backfill a culvert so it does not collapse
Pouring materials slowly layer by layer and evenly
What services benefit from culverts name 2
What do silos keep out from the food stored inside
pests
How would you increase the pressure in a silo with grains inside
Add more grains inside the silo
What happens to the sides of a square culvert when they experience pressure from the materials around them
They bend
What disruptions can flooded roads cause
people cant get to stores, hospitals and their jobs etc open ended
What are two possible negative effects of culverts to the environment
flooding and damage to habitats