Wonderful Inventions by Chance
A New Cookie Star: Chocolate Chip Cookies
In America, there was a famous cook, Ms. ____.
One day in 1938, she wanted to ____ chocolate cookies.
However, she didn’t ____ enough time to melt chocolate.
So, she cut a ____ bar into small chips.
Then, she mixed them with her dough and ____ the cookie dough into the oven.
When Ms. ____ opened the oven, she found that the chips were not melted into the dough.
Although the chips remained in the cookies, she was not ____.
Her new ____ were so delicious.
She invented ____ CHIP cookies!
Finding Safety in Glass: Safety Glass
In 1903, a French scientist, Mr. Bénédictus, was experimenting with ____ plastic in a glass flask.
He accidentally hit the glass flask, and it fell on the ____.
Although the glass flask was broken into pieces, they still ____ together in the shape of the flask!
How ____ this happen?
The secret was the ____ plastic in the flask.
This finding led to his ____ of safety glass.
These days, we ____ find safety glass everywhere.
For example, it is used for car ____.
If there is a car accident, people are safer from sharp ____ of glass.
Cleaning Clothes Without Water: Dry Cleaning
Can ____ clean your clothes without water?
The ____ is “yes.”
Dry cleaning uses oil to clean ____.
There’s an interesting story ____ dry cleaning.
In the 1800s, a factory worker in France spilled lamp oil on a ____.
The factory manager, Mr. Jolly, looked at the tablecloth and ____ something.
The dirty spot on the ____ was cleaned by the lamp oil!
His ____ led to a new way of cleaning clothes.
Now, dry cleaning is widely used around the ____.
____ wonderful inventions came by chance.
When things go ____, don’t be disappointed.
Maybe you can be the next amazing ____.