Building Tunnels

Building Tunnels

boring

to make a hole with a spinning tool or a twisting motion

collapse

to fall apart or fall down

dynamite

an explosive material used for blasting

engineers

people who design, build or repair machines, buildings, bridges, tunnels or other structures

explosives

a substance that can blow up with a sudden release of energy

line

to cover the inside of something

"This tunnel is lined with wires and lights."

Multiple Choice

Let's review!

What is the definition of the word: engineers

• people who design, build or repair machines, buildings, bridges, tunnels or other structures

• to make a hole with a spinning tool or a twisting motion

• a substance that can blow up with a sudden release of energy

Multiple Choice

Let's review!

What is the definition of the word: boring

• to cover the inside of something

• to make a hole with a spinning tool or a twisting motion

• a substance that can blow up with a sudden release of energy

muck

broken materials in a mine that is created by an explosive blast and must be removed

obstacles

things that get in the way; preventing progress or movement

sealed

closed tightly to prevent anything from passing though

stable

steady and balanced; reliable and unlikely to change

technology

the use of scientific knowledge or tools to make or do something

trench

a long ditch

Multiple Choice

Let's review!

What is the definition of the word: muck

• broken materials in a mine that is created by an explosive blast and must be removed

• things that get in the way; preventing progress or movement

• the use of scientific knowledge or tools to make or do something

Multiple Choice

Let's review!

What is the definition of the word: technology

• steady and balanced; reliable and unlikely to change

• things that get in the way; preventing progress or movement

• the use of scientific knowledge or tools to make or do something

Multiple Choice

What do we use a glossary for?

• to lookup unknow words from a specific text (usually found in the back of the book)

• to know the titles of each chapter (usually found at the beginning of the book)

• to know the page numbers of each chapter (usually found in the beginning of the book)

Multiple Choice

What caused people and engineers to build tunnels?

• people wanted to make quicker and safer travel and trade routes

• people wanted to make safe places to live

• people wanted to check the soil for planting and gardening

Multiple Choice

What must be done prior to building a tunnel?

• soil and rock samples are taken to figure out what kind of rock they will be digging through

• all the trees in the area are cut down

• all the water in nearby rivers and lake are drained

Multiple Choice

When a tunnel is stable, it is ______________________.

• under water

• safe for workers

• made out of soft earth

• dangerous for workers

Multiple Choice

Why might workers needs to use bolts or concrete in a tunnel of solid rock?

• to find out what type of rock they will dig through

• to pump water out

• to determine where to place a tunnel

• to make sure the rocks don't move

Multiple Choice

What is the effect of a tunnel-boring machine breaking?

• It can take months or even years to fix

• parts can fly off and hit someone

• the machine is unfixable and they must find a new place to tunnel

• workers will lose their jobs

Multiple Choice

What is the difference of building tunnels in hard earth different from building tunnels in soft earth?

• When digging in soft earth, workers dig, then line the tunnel.

• When digging in hard earth, workers support, then dig the tunnel.

• When digging in soft earth, workers add support, then build the tunnel.

• When digging in hard earth, workers dig without supporting the tunnel.

Multiple Choice

When building some underwater tunnels, workers dig __________ and then lower down sections of the tunnel.

• explosives

• obstacles

• trenches

• muck

Open Ended

How did the invention of dynamite change the future of tunnels?

Open Ended

How have tunnels changed transportation throughout the world?