Page 33 - IP1Y 001 Listening Success BT7

A. Listen and answer the following questions. Note taking

1. What is the main idea of this passage? Topic :

cooler weather conditions at higher elevations

the theory of operating a hot air balloon
the pressure felt from the downward push of particles in Main idea :

the atmosphere
how to stay cool in the summertime

st
1 Major point :
2. What type of energy is used up by air particles as
they expand?
gases

pressure Details :
heat

none of the above

3. How is a hot air balloon able to fly?

with an engine
nd
2 Major point :
with hot air rising
with atmospheric pressure pushing upward

all of the above
Details :
4. What do people like to do when it starts to get hot in
lower elevations?

to go to places near sea level
to ride in a hot air balloon

to go to places like the mountains
rd
none of the above 3 Major point :

B. Check True or False.

1. When air expands, it cools. Details :

2. There is less pressure high in the

atmosphere.

3. There are more particles farther down in

the atmosphere.

Unit 5. Pressure and Heat 33