Comenius ProjectWeather conditions

COMPREHENSIVE SCHOOL“M. BUONARROTI”Marina di Carrara

Presents

LaFrançaise, February 2011

Our Group

Our tools

The rain gauge

The windsock

The water barometerThe psycrometer

• The rain gauge is an instrument used to measure the amount of rainfall through the height of the deposited water.

Our rain gauge

• Material: very light fabric, wire, two rings, a broom, a stick.

Our windsock

The windLooking at the position of the windsock we can define if the wind is absent or, if present, if it is weak, medium or strong. From the direction that the windsock takes, with the help of a compass, we can determine the wind direction, that is the cardinal point from which it blows and notes are written in the table.

…and our wind rose

Our water barometer

Step1: water level is the same

Step2: Outside, the water level of the straw is down

Step3: near the radiator, the water level of the straw is up

How to build and how to use our psycrometer. How to measure

indirectly the relative humidity

1 2

3 4 5

In our little “WEATHER STATION”

we have the thermometer, the

hygrometer and the barometer

Finally we have the instruments and we can begin to collect

the observations and to record data

Our data: manual graphs

Our data: digital graphs

November temperatures

-5

0

5

10

15

20

25

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31

days

tem

pe

ratu

re

MAX

MIN.A!

Our laboratory experiments

The acid rain

The clouds in a jar

MATERIAL

Papers with universal indicatorDistilled waterRainwaterVinegarHydrochloric acidBicarbonateDishwashing liquid Saliva

We collected rain water in a clean jar and found the ph using papers with universal indicator.We then compared the colour of the paper that was submerged in rainwater with the one that the paper takes in distilled water.

Acid rain

We repeat with the vinegar, dilute hydrochloric acid, bicarbonate, dishwashing liquid, saliva.

sample Universal paper colour

Ph value

Distilled water ?

Rain water Light green 6

Vinegard Red 3

Hydrochloric acid Deep red 1

Bicarbonate Light blue 12

Dishwashing liquid Yellow 7

Saliva Light green 6

We have different ph values. The more acidic substance is the hydrochloric acid, the less acidic one is the bicarbonate.

Table

- damages to the trees that get sick and dry - acceleration of the melting of ice- pollution of the lakes, killing animals and plants that inhabit them- attacks and damages to the marble monuments

1908 1968

Adverse effects of the acid rain on the environment

Could also it occur in Carrara?

What will happen to our old cathedral, completely covered with fine white marble from the quarries?

The rose window in 2011 …The rose window 50 years later

Three special events

November begins with bad weather conditions. Heavy rains and landslides occur

in and around Carrara

It snows today!

The snow, 2010 – December 17th

…some unusual landscapes

• January 4th

2011, 9.20 a.m. – our solar eclipse

- Latitude 44°02’- Longitude

10°02’

Solar eclipse

See you in Carrara!by

pupils of 1A - Secondary school

3A,4A e 4B Primary school

Scientific project: Tiziana PerfettiTexts: Maria Antonietta Caporale

Graphics and technical support: Claudia TomasiSupervision: Rossella Bragazzi