شرح ساينس الصف السادس الابتدائي لغات - الفصل الدراسي الأول
شرح ساينس سادسة ابتدائي - ترم أول

لينك تحميل الملزمة
https://drive.google.com/file/d/11eY3-p-lmwYBp3avLTpzw1ekTDB8olzB/view?usp=sharing

لينك تليجرام
https://t.me/mrahmedelbashagroup

In This Lesson:
▌In the electric circuit, there must be a source of electricity:


Most electric circuits consist of many components that conduct electricity, which are:
-A metal wire.
-An electric power sources.
-A switch.
-An electric device.

The switch:
- A switch is the most common tool to open and close the electric circuit.
- A switch can be manual such as a wall switch for lights, where :
- When the switch is closed (turned on), it closes the circuit (closed electric circuit), so the electric current flows through the circuit.

- When the switch is opened (turned off), it opens the circuit (opened electric circuit), so the electric current doesn't flow through the circuit.


Electric conductors and insulators:



• Electric conductors also known as "good conductors of electricity".
• Examples of good conductors of electricity:
- All metals such as copper and aluminum.




Electric insulators also known as "bad conductors of electricity".
• Examples of bad conductors of electricity:
- Rubber.
- Plastic.

Current safety:
• Most electric wires are coated with rubber or plastic which are bad conductors of electricity, to protect people from electric shock.

• Touching non insulated wire that an electric current flows through causes an electric shock and may cause death, because the human body contains a lot of water which is good conductor of electricity.



بالتوفيق
مستر احمد الباشا