شرح ساينس الصف السادس الابتدائي لغات - الفصل الدراسي الثاني
شرح ساينس سادسة ابتدائي - ترم ثاني
لينك تحميل الملزمة
https://drive.google.com/file/d/1tmMe57kKg9UrWNzWlybyG9JAD8DKRPjL/view?usp=sharing
لينك تليجرام
https://t.me/mrahmedelbashagroup
In This Lesson:
Meteorology
It is the science of studying and predicting the weather.
Meteorologist
The scientist who uses a variety of tools and instruments to study and forecast weather.
Atmospheric pressure
It is the amount of force that air exerts on its surroundings.
or
It is the weight of the air above a certain area.
• Meteorologists use some tools like satellites, airplanes and weather balloons to carry measuring instruments high into the atmosphere to measure conditions of weather from different altitudes.
• Satellites and weather stations have devices designed to transmit data from the satellite or
station to meteorologists.
• Meteorologists try to collect a lot of data about air temperature, atmospheric pressure, wind, precipitation, humidity and other weather conditions.
Humidity:
It is the measure of how much water vapor is present in the air.
Analyzing the data:
▌Meteorologists usually use weather maps to collect data from different places and over short periods of time, so that they can analyze these data.
▌Mapping data like air temperature, atmospheric pressure and humidity allows meteorologists to see the important weather conditions such as the movement of air.
Putting it all together:
▌Collecting and analyzing data about the atmosphere is just one part of predicting the weather.
▌Meteorologists also need to observe some other factors that affect the atmosphere such as landforms.
▌Meteorologists use complex computer models to predict how these different factors will interact.
The Unequal Heating of Earth
we will do an experiment to collect data that show differences in the effect of thermal energy from the Sun on land and water, and how these differences may impact air temperature in a certain area.
Tools
Steps
1. Place a thermometer in each beaker, then put the reading lamp at about 10 cm from the top of both beakers.
2. Turn on the reading lamp and record the temperature of each beaker every minute for 10 minutes.
3. Turn off the reading lamp and record the temperature of each beaker every minute for 10 minutes.
Observations
- When the reading lamp is on:
- When the reading lamp is off:
Conclusions
- Sand is heated up faster than water.
- Sand is cooled off faster than water.
The previous experiment simulates what happens in different Earth's environments, where:
• When the lamp is on, it simulates daylight.
• When the lamp is off, it simulates night.
So, the effect of thermal energy of the Sun on land (sand) differs from that on water, and this causes the change of air temperature above land or water areas on the Earth's surface.
بالتوفيق
مستر احمد الباشا