4. A forms when hot magma rises to the volcano
earth surface.
When a volcano erupts it can throw solid materials
into the air, like particles of ash and large rocks,
called volcanic bombs.
5. The volcanic cone is formed by
many layers of ash and lava.
Lava is magma
that rises to the
Earth’s surface
and flows out
of a volcano.
The crater is the
opening where lava
and solid materials
come out of a
volcano.
The conduit is the
vertical shaft that
carries magma to
the surface.
The magma chamber
is a large pool of
magma under a
volcano near the earth
surface.
6. -A three hundred thirty millilitres
-bottle.
- A funnel
- A rectangular piece of cardboard
- A big piece of card
- Plasticine in different colours.
- White glue.
-A small glass of vinegar
- Baking soda
- Paprika
“How to make
a model volcano>”
You will need these materials:
7. You must follow the instructions:
“How to make
a model volcano”
1. Make a cone with the piece of card and cut off the tip. Place the
plastic bottle inside the cone as shown in the picture.
2. Glue the bottle and the cone onto the cardboard. Cover the
cone with plasticine, using different colours. Leave the top of
the volcano open.
3. Use the funnel to pour the water and the vinegar into the
bottle.
4. Add a spoonful of baking soda and watch what happens.
8. a. What happens when you put baking
soda into the bottle?
b. Match the materials from the
experiment to the objects that they
represent.
Observe and answer
Water, vinegar and baking soda
Plastic bottle
Lava
Magma chamber and conduit
9.
10. If there is a volcanic or
seismic alert
Don’t run. Don’t shout. Don’t push.
Don’t use lifts. If the electricity goes off, you can be trapped
inside.
Don’t light any type of fire (matches, lighters, candles).
There may be broken pipes.
Don’t make any personal phone calls. The phone lines must
stay open for emergency calls.
11. Answer in English
with you own words
a. Why should you stay calm when
there is a seismic or volcanic alert?
b. Why shouldn’t you make any
personal phone calls?
c. Why shouldn’t you light any type of
fire?
