Show:
Vocabulary
Comprehension 1
Comprehension 2
Fact and Opinion
Cause and Effect
100

ablaze

on fire

100
What started most of the fires in Yellowstone National Park during the summer of 1988?
flash of lightning
100
Hundreds of ______ were sent to battle and stop the fires.
firefighters
100
Fact or Opinion? Fires are caused by heat and they also release heat.
fact
100
Name an effect of the following: Most animals are able to flee from a spreading fire.
Most animals are unharmed and can return to the area quickly.
200

interval

period of time

200
Officials previously let lightning fires burn themselves out unless _____.
they threatened structures built by people
200
On August 19, the wind blew ______ a mile away and started new fires.
embers
200
Fact or Opinion? Fires are part of the endless cycle of change.
Fact
200

What is the cause: Why do firefighters sometimes set small blazes on purpose?

Firefighters try to prevent bigger fires from happening.

300
Destroyed by burning.
Consumed
300
Officials changed their mind when more fires drove ____ from the park.
tourists
300
August 20, known as _____, saw an area more than twice the size of Chicago burning.
Black Saturday
300
Fact or Opinion? A fire is a chemical reaction.
fact
300
What is a cause of the following: On September 10th, the worst part of the Yellowstone fire ended.
It snowed.
400

renew

to make new again, bring life to

400
What ended up saving Yellowstone National Park?
weather
400

How long is the interval between wildfires in Yellowstone?

300-400 years

400
Fact or Opinion? Fires are beautiful to watch.
opinion
400

What is the effect of the following:

Old trees burn down letting light onto the forest floor.

New plants start to grow

500
Able to burn easily and rapidly.
Flammable
500
New _______ began to appear and thrive in charred woods.
plants and animals
500
How does fire help lodgepole trees reproduce?
The fire opens the sealed pinecones to let the seeds fall out.
500
Fact or Opinion? Firefighting would be an exciting job.
opinion
500
What is the effect of the following: In old lodgepole forests, many of the standing trees are dead.
Fires remove these dead trees, making room for new ones.