Vocabulary
1. What does the word examine mean?
A. To ignore something
B. To look at something carefully
C. To throw something away
D. To hide something
B. To look at something carefully
The alarm detects an earthquake. What happens?
A. It ignores danger
B. It notices shaking
C. It causes an earthquake
D. It turns off forever
B. It notices shaking
Why are warning systems important?
A. They make loud noises for fun
B. They help people prepare for danger
C. They stop earthquakes
D. They create disasters
B. They help people prepare for danger
2. Scientists examine the ground before an earthquake. What are they doing?
A. Sleeping
B. Studying it closely
C. Destroying it
D. Taking pictures of it only
B. Studying it closely
Which item detects smoke in a house?
A. Radio
B. Smoke alarm
C. Table
D. Fire extinguisher
B. Smoke alarm
15. What is the main idea of the passage?
A. Disasters cannot be predicted
B. Technology helps warn people about natural disasters
C. Sirens are loud
D. Computers cause earthquakes
B. Technology helps warn people about natural disasters
Which sentence correctly uses examine?
A. I examine my homework before turning it in.
B. I examine my lunch by eating fast.
C. I examine by running away.
D. I examine by shouting loudly.
A. I examine my homework before turning it in.
Where can sensors be placed?
A. Only in homes
B. On the ground or ocean floor
C. Only in schools
D. Inside cars
B. On the ground or ocean floor
What happens after sensors send signals?
A. People panic immediately
B. Scientists warn the public
C. Nothing happens
D. The disaster stops
B. Scientists warn the public
What does detect mean?
A. Finds or notices something
B. Loses something
C. Breaks something
D. Hides something
A. Finds or notices something
Why do volunteers check sirens?
A. To decorate them
B. To make sure they are working
C. To signal the public
D. To move them
B. To make sure they are working
What problem did scientists want to solve?
A. People moving too slowly
B. Not enough warning time before disasters
C. Too many alarms
D. Broken roads
B. Not enough warning time before disasters
What does detects mean?
A. Finds or notices something
B. Loses something
C. Breaks something
D. Hides something
A. Finds or notices something
Why did Sebastian want to create a warning system?
A. He liked computers
B. He experienced a disaster and wanted to help others
C. Because he was a scientist already
D. His friends told him to
B. He experienced a disaster and wanted to help others
What can you infer about Sebastian after the earthquake?
A. He ignored the problem
B. He wanted people to be safer
C. He moved away forever
D. He stopped learning
B. He wanted people to be safer