الصف الرابع الابتدائي ساينس
ساينس رابعة ابتدائي

لينك تحميل الملزمة
https://drive.google.com/file/d/1fUGVXqF0BcCBVVk93_w2YsPbdb2VK2yx/view?usp=sharing

لينك تليجرام
https://t.me/scimrahmedelbasha

In This Video :
How does energy change (transform) ?

Hair dryer Electrical energy. Thermal energy and
sound energy.

Soap dispenser Potential energy (stored in the spring of
the soap dispenser). Kinetic energy (The movement of the soap upward).

Washing machine Electrical energy. Kinetic energy and
sound energy.
When you rub your hands, you will feel warm because kinetic energy (consumed energy) is converted into thermal energy (produced energy).

Energy Chains
- Energy chain is a way to describe or represent the energy flow that occurs when we use different devices.

- Energy chains often start with the Sun .

• Now, we will study some examples of energy chains.
Energy chain when eating food


بالتوفيق
مستر احمد الباشا