What is it?
clouds
Today, it takes _________ days to walk from the nearest road to the cave's entrance.
two
ten
three
five
Formation
A group of people working together
A natural shape or structure
The cave has no water source inside it.(True or False)
False
What's cave is it?
Hang Son Doong
The cave was found and explored just one year after it was discovered.(True or False)
False
Discovered
Found something for the first time
Looked at something carefully
The sun is shining into one of the most beautiful _______ in the world.
rivers
caves
forests
castles
The Son Doong Cave is located in Vietnam, which is a country in_______ .
Asia
America
Europe
Africa
How did Ho Khanh help the world learn about the cave?
He guided scientists there
He wrote a book
He found a map
He filmed a documentary
The cave is hidden right in the middle of the __________.
ocean
desert
city
jungle
The cave can only be reached by walking for several days.(True or False)
True
In the year 1990, a Vietnamese man named Ho Khanh __________ the cave.
painted
discovered
built
cleaned
True / False: After he first found the cave, Ho Khanh went back and found it again the very next day.
False
Collapsed
Fell down suddenly
Was slowly destroyed
What is it?
Stalagmite
Jungle
A wild place full of trees and plants
A farm with many crops and flowers
True / False: The cave is very short, only about one kilometer long.
False
Some rock formations in the cave reach 70 meters in height.(True or False)
True
What type of rock formations are found growing upward in the cave?
Stalagmites
Stalactites
Crystals
Pillars
What do people sometimes do inside the cave?
Grow crops
Build homes
Go fishing
Walk and explore
Where is it?
desert
What can you sometimes see coming out of the cave?
Animals
Clouds
Fire
Smoke
True / False: The cave is about three million years old.
True
True / False: An American explorer discovered the cave in 1990.
False
After he told people about it, he couldn't find the cave again for ____________ years.
eighteen
ten
eight
twenty
What is it?
cave
True / False: Son Doong is the largest cave in the world.
True
What makes Hang Son Doong different from most caves?
It has plants, trees, and sunlight inside
It is located under a city
It has paintings on the walls
It is underwater
Shine
To move quickly
To give light
True / False: When Ho Khanh found the cave, he saw clouds coming from it.
True
What do the collapsed parts of the cave allow?
Light and air to enter
Water to drain out
People to drive inside
Rocks to fall from above
What is one challenge for visitors wanting to explore the cave?
It is far from the road
They must fly inside
It is too cold
They need scuba gear
Where is it?
Jungle
There are bright green ________ growing inside and outside of the cave.
plants
animals
flowers
rocks
The cave is very long; it is more than five __________ long.
centimeters
meters
miles
kilometers
True / False: The name Hang Son Doong means "The Dark Jungle Cave".
False
The name Hang Son Doong means the "Mountain __________ Cave".
Rock
River
Rain
Road
True / False: There are bright green plants growing both inside and outside of the cave.
True
When he first found the cave, he saw ___________ coming out of it.
birds
smoke
bats
clouds
True / False: Today, it takes three days to walk from the nearest road down to the entrance.
True
Hang Son Doong is over three million years old.(True or False)
True
The cave is very old; it is about three ____________ years old.
hundred
billion
thousand
million
True / False: The Son Doong Cave is located in Vietnam, in Asia.
True
Entrance
A way to get out of a place
A way to go into a place
What is it?
Sunlight
Sunlight enters the cave because of holes in the ceiling.(True or False)
True
True / False: It took eighteen years for him to finally find the cave again.
True
Stalagmite
A rock that rises from the floor of a cave
A rock that hangs from the ceiling of a cave
Hang Son Doong is located in the desert region of Vietnam.(True or False)
False
Son Doong is famous because it is the __________ cave in the world.
oldest
darkest
smallest
largest
True / False: The cave is located in the middle of a very dry desert.
False