Канал: Mr.George Helmy

science | prep 3 | Unit 1 | Lesson 1 | Part 1

science | prep 3 | Unit 1 | Lesson 1 | Part 1

حل واجب الدرس الرابع sheet 4

حل واجب الدرس الرابع sheet 4

Chemistry》 sec. 2》chapter 1》 lesson 1》The evolution of the concept of the atomic structure

Chemistry》 sec. 2》chapter 1》 lesson 1》The evolution of the concept of the atomic structure

حل واجب الدرس الثالث Lesson 3. Chapter 1

حل واجب الدرس الثالث Lesson 3. Chapter 1

حل واجب الدرس الثانى lesson 2 . chapter 1

حل واجب الدرس الثانى lesson 2 . chapter 1

حل واجب الدرس الاول lesson 1 . chapter 1

حل واجب الدرس الاول lesson 1 . chapter 1

حل واجب الدرس السابع mixtures classification of solutions

حل واجب الدرس السابع mixtures classification of solutions

حل واجب الدرس السادس unit2 chapter 2

حل واجب الدرس السادس unit2 chapter 2

حل واجب الدرس الخامس the mole and gas volume - the limiting reactant

حل واجب الدرس الخامس the mole and gas volume - the limiting reactant

حل واجب الدرس الرابع the mole and Avogadro's number

حل واجب الدرس الرابع the mole and Avogadro's number

حل واجب الدرس الثالث the chemical equation and the ionic equation

حل واجب الدرس الثالث the chemical equation and the ionic equation

حل واجب الدرس الثانى unit1 chapter2

حل واجب الدرس الثانى unit1 chapter2

حل واجب الدرس الاول unit1 chapter1

حل واجب الدرس الاول unit1 chapter1

science》 prep.2 》 2nd term》 February revision مراجعة شهر فبراير

science》 prep.2 》 2nd term》 February revision مراجعة شهر فبراير

science》 prep.1 》 2nd term》 February revision مراجعة شهر فبراير

science》 prep.1 》 2nd term》 February revision مراجعة شهر فبراير

Science prep 2 . Lesson 1. Unit 1

Science prep 2 . Lesson 1. Unit 1

Bats

Bats

Chemistry》 sec. 1》 unit 3》 Revision

Chemistry》 sec. 1》 unit 3》 Revision

Chemistry》 sec. 1》final revision

Chemistry》 sec. 1》final revision

Science ▪︎ prep3 ▪︎ model exam 3

Science ▪︎ prep3 ▪︎ model exam 3

Science ▪︎ prep3 ▪︎ unit 3 Revision

Science ▪︎ prep3 ▪︎ unit 3 Revision

Science ▪︎ prep3 ▪︎ model exam 2

Science ▪︎ prep3 ▪︎ model exam 2

Science ▪︎ prep3 ▪︎ model exam 1

Science ▪︎ prep3 ▪︎ model exam 1

Science ▪︎ prep3 ▪︎ unit 2 Revision ▪︎ part (3/3)

Science ▪︎ prep3 ▪︎ unit 2 Revision ▪︎ part (3/3)

Science ▪︎ prep3 ▪︎ unit 2 Revision ▪︎ part (2/3)

Science ▪︎ prep3 ▪︎ unit 2 Revision ▪︎ part (2/3)

Science ▪︎ prep3 ▪︎ unit 2 Revision ▪︎ part (1/3)

Science ▪︎ prep3 ▪︎ unit 2 Revision ▪︎ part (1/3)

Science ▪︎ prep3 ▪︎ unit1 Revision ▪︎ part (3/3)

Science ▪︎ prep3 ▪︎ unit1 Revision ▪︎ part (3/3)

Science ▪︎ prep3 ▪︎ unit1 Revision ▪︎ part (2/3)

Science ▪︎ prep3 ▪︎ unit1 Revision ▪︎ part (2/3)

Science ▪︎ prep3 ▪︎ unit1 Revision ▪︎ part (1/3)

Science ▪︎ prep3 ▪︎ unit1 Revision ▪︎ part (1/3)

science》 prep.2 》 2nd term》 April revision

science》 prep.2 》 2nd term》 April revision

science》 prep.1 》 2nd term》 April revision

science》 prep.1 》 2nd term》 April revision

Chemistry》 sec. 1》 unit 4》 revision》part 5

Chemistry》 sec. 1》 unit 4》 revision》part 5

Chemistry》 sec. 1》 unit 4》 revision》part 6

Chemistry》 sec. 1》 unit 4》 revision》part 6

prep 1. unit 2. lesson 3. motion

prep 1. unit 2. lesson 3. motion

prep 1. unit 2. lesson 2. accompanied forces with motion

prep 1. unit 2. lesson 2. accompanied forces with motion

Chemistry》 sec. 1》 unit 4》 revision》part 4

Chemistry》 sec. 1》 unit 4》 revision》part 4

Chemistry》 sec. 1》 unit 4》 revision》part 3

Chemistry》 sec. 1》 unit 4》 revision》part 3

Chemistry》 sec. 1》 unit 4》 revision》part 2

Chemistry》 sec. 1》 unit 4》 revision》part 2

prep 1. unit 2. lesson 1. Forces in nature

prep 1. unit 2. lesson 1. Forces in nature

Chemistry》 sec. 1》 unit 4》 revision》part 1

Chemistry》 sec. 1》 unit 4》 revision》part 1

prep 2. unit 2. lesson 3. part (1/2) light reflection

prep 2. unit 2. lesson 3. part (1/2) light reflection

$prep 2. unit 2. lesson 3. part (2/2) light refraction$

prep 2. unit 2. lesson 3. part (2/2) light refraction

prep 1. unit 1. lesson 3. part (2/2) The chemical reactions

prep 1. unit 1. lesson 3. part (2/2) The chemical reactions

prep 2. unit 2. lesson 1. part (3/3) properties of sound

prep 2. unit 2. lesson 1. part (3/3) properties of sound

prep 2. unit 2. lesson 1. part (2/3) properties of sound

prep 2. unit 2. lesson 1. part (2/3) properties of sound

prep 1. unit 1. lesson 3. part (1/2) The chemical reactions

prep 1. unit 1. lesson 3. part (1/2) The chemical reactions

prep 2. unit 2. lesson 1. part (1/3) properties of sound

prep 2. unit 2. lesson 1. part (1/3) properties of sound

prep 1. lesson 2 / unit 1 (The valency )

prep 1. lesson 2 / unit 1 (The valency )

composition of transverse and longitudinal waves

composition of transverse and longitudinal waves

Chemistry》 sec. 1》 unit 4》 chapter 1》 lesson 1》 part (2/2)

Chemistry》 sec. 1》 unit 4》 chapter 1》 lesson 1》 part (2/2)

Chemistry》 sec. 1》 unit 4》 chapter 1》 lesson 1》 part (1/2)

Chemistry》 sec. 1》 unit 4》 chapter 1》 lesson 1》 part (1/2)

Chemistry. sec1. model answer of booklet 6. حل البوكلت السادس كتاب المعاصر

Chemistry. sec1. model answer of booklet 6. حل البوكلت السادس كتاب المعاصر

science. 3rd prep. 1st term. idea 4 افكار متنوعة لاسئلة الامتحانات

science. 3rd prep. 1st term. idea 4 افكار متنوعة لاسئلة الامتحانات

Chemistry. sec1. model answer of booklet 3. حل البوكلت الثالث كتاب المعاصر

Chemistry. sec1. model answer of booklet 3. حل البوكلت الثالث كتاب المعاصر

Chemistry. sec1. model answer of booklet 2. حل البوكلت الثانى كتاب المعاصر

Chemistry. sec1. model answer of booklet 2. حل البوكلت الثانى كتاب المعاصر

Chemistry. sec1. model answer of booklet 4. حل البوكلت الرابع كتاب المعاصر

Chemistry. sec1. model answer of booklet 4. حل البوكلت الرابع كتاب المعاصر

science. 3rd prep. 1st term. idea 3 افكار متنوعة لاسئلة الامتحانات

science. 3rd prep. 1st term. idea 3 افكار متنوعة لاسئلة الامتحانات

science. 3rd prep. 1st term. idea 2 افكار متنوعة لاسئلة الامتحانات

science. 3rd prep. 1st term. idea 2 افكار متنوعة لاسئلة الامتحانات

chemistry. sec 1. حل نموذج الوزارة الاسترشادى 2020

chemistry. sec 1. حل نموذج الوزارة الاسترشادى 2020

Chemistry. sec1. model answer of booklet 5. حل البوكلت الخامس كتاب المعاصر

Chemistry. sec1. model answer of booklet 5. حل البوكلت الخامس كتاب المعاصر

Chemistry》 sec. 1》 unit 3》 chapter 2》

Chemistry》 sec. 1》 unit 3》 chapter 2》

Chemistry》 sec. 1》 unit 2》revision . part(2/2)

Chemistry》 sec. 1》 unit 2》revision . part(2/2)

science. 3rd prep. 1st term. idea 1 افكار متنوعة لاسئلة الامتحانات

science. 3rd prep. 1st term. idea 1 افكار متنوعة لاسئلة الامتحانات

Chemistry》 sec. 1》 unit 1》 Revision

Chemistry》 sec. 1》 unit 1》 Revision

The simplest way to draw the image formed by the lenses طريقة رسم الصورة المتكونة فى العدسات

The simplest way to draw the image formed by the lenses طريقة رسم الصورة المتكونة فى العدسات

The simplest way to draw the image formed by the concave mirror طريقة رسم الصورة المتكونة فى المرآة

The simplest way to draw the image formed by the concave mirror طريقة رسم الصورة المتكونة فى المرآة

Chemistry》 sec. 1》 unit 2》revision . part(1/2)

Chemistry》 sec. 1》 unit 2》revision . part(1/2)

Chemistry. sec1. model answer of booklet 1. حل البوكلت الاول كتاب المعاصر

Chemistry. sec1. model answer of booklet 1. حل البوكلت الاول كتاب المعاصر

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 3 (2/2)

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 3 (2/2)

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 3 (1/2)

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 3 (1/2)

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 2 (2/2)

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 2 (2/2)

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 2 (1/2)

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 2 (1/2)

Layers of atmosphere

Layers of atmosphere

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 1

Chemistry》 sec. 1》 unit 2》 chapter 1》 lesson 1

The ear and the sense of hearing.

The ear and the sense of hearing.

The earth's layers

The earth's layers

Alpha, beta and gamma radiations

Alpha, beta and gamma radiations

Science▪︎ prep 2▪︎ unit 1▪︎lesson 1▪︎part (2/2)

Science▪︎ prep 2▪︎ unit 1▪︎lesson 1▪︎part (2/2)

Science▪︎ prep 2▪︎ unit 1▪︎lesson 1▪︎part (1/2)

Science▪︎ prep 2▪︎ unit 1▪︎lesson 1▪︎part (1/2)

The Big Bang ... evolution of the universe in 5 minutes

The Big Bang ... evolution of the universe in 5 minutes

Chemistry》 sec. 1》 unit 1》 chapter 2》 part (2/2)

Chemistry》 sec. 1》 unit 1》 chapter 2》 part (2/2)

Chemistry》 sec. 1》 unit 1》 chapter 2》 part (1/2)

Chemistry》 sec. 1》 unit 1》 chapter 2》 part (1/2)

Types of bacteria

Types of bacteria

Chemistry》 sec. 1》 unit 1》 chapter 1》 part (2/2)

Chemistry》 sec. 1》 unit 1》 chapter 1》 part (2/2)

Chemistry》 sec. 1》 unit 1》 chapter 1》 part (1/2)

Chemistry》 sec. 1》 unit 1》 chapter 1》 part (1/2)

Largest hole in the ozone layer has apparently healed itself

Largest hole in the ozone layer has apparently healed itself

Science ▪︎ prep3 ▪︎ unit1▪︎ lesson2

Science ▪︎ prep3 ▪︎ unit1▪︎ lesson2

Science ▪︎ prep3 ▪︎ unit1▪︎ lesson1▪︎ part (3/3)

Science ▪︎ prep3 ▪︎ unit1▪︎ lesson1▪︎ part (3/3)

Science ▪︎ prep3 ▪︎ unit1▪︎ lesson1▪︎ part (2/3)

Science ▪︎ prep3 ▪︎ unit1▪︎ lesson1▪︎ part (2/3)

Science▪︎ prep3▪︎ unit1▪︎ lesson1▪︎ part (1/3)

Science▪︎ prep3▪︎ unit1▪︎ lesson1▪︎ part (1/3)

How to write the chemical formula of a chemical compound?

How to write the chemical formula of a chemical compound?

Science▪︎ prep 3▪︎ unit 2▪︎ lesson 1▪︎ part (3/3)

Science▪︎ prep 3▪︎ unit 2▪︎ lesson 1▪︎ part (3/3)

living and non-living things

living and non-living things

Science▪︎ prep 3▪︎ unit 2▪︎ lesson 1▪︎ part (2/3)

Science▪︎ prep 3▪︎ unit 2▪︎ lesson 1▪︎ part (2/3)

Science▪︎ prep 3▪︎ unit 2▪︎ lesson 1▪︎ part (1/3)

Science▪︎ prep 3▪︎ unit 2▪︎ lesson 1▪︎ part (1/3)

تقييم الطلاب فى المواد الاساسية و غير الاساسية

تقييم الطلاب فى المواد الاساسية و غير الاساسية

Science▪︎ prep 3▪︎ unit4▪︎ Hormones

Science▪︎ prep 3▪︎ unit4▪︎ Hormones

Coronavirus.. death ratios compared to population

Coronavirus.. death ratios compared to population

Science● 3rd prep ● Unit 3 ● Part (4/4)

Science● 3rd prep ● Unit 3 ● Part (4/4)

Science● 3rd prep ● Unit 3 ● Part (3/4)

Science● 3rd prep ● Unit 3 ● Part (3/4)

Science● 3rd prep ● Unit 3 ● Part (2/4)

Science● 3rd prep ● Unit 3 ● Part (2/4)

Surface tension of water

Surface tension of water

Science● 3rd prep ● Unit 3 ● Part (1/4)

Science● 3rd prep ● Unit 3 ● Part (1/4)

Science 3rd prep. Solving problems on unit 2

Science 3rd prep. Solving problems on unit 2

Science 3rd preparatory - 2nd term - Test yourself on unit 1

Science 3rd preparatory - 2nd term - Test yourself on unit 1

Science. 3rd prep. Unit 2. Lesson 3

Science. 3rd prep. Unit 2. Lesson 3

Coronavirus update - 20 March 2020

Coronavirus update - 20 March 2020

Science. 3rd preparatory. The rheostat and how does it work?

Science. 3rd preparatory. The rheostat and how does it work?

Science prep 2 . Lesson 2. Unit 2

Science prep 2 . Lesson 2. Unit 2

Science. 3rd prep. Unit 2. Lesson 2.

Science. 3rd prep. Unit 2. Lesson 2.

Coronavirus update - 17 March 2020

Coronavirus update - 17 March 2020

covid-19 facts, symptoms and ways of protection

covid-19 facts, symptoms and ways of protection

Oxygen ratio in air

Oxygen ratio in air

Motion of molecules

Motion of molecules

Can you see them? camouflage in animals.

Can you see them? camouflage in animals.

A climbing bat !!!

A climbing bat !!!

into the den of bats

into the den of bats

States of matter (solid, liquid and gas)

States of matter (solid, liquid and gas)

Mirage on Cairo Hurghada road

Mirage on Cairo Hurghada road

4o measuring devices you may not know much about them

4o measuring devices you may not know much about them

The electromagnet

The electromagnet

hydrochloric acid with ammonia solution

hydrochloric acid with ammonia solution

Transverse and Longitudinal waves

Transverse and Longitudinal waves

variable and fixed resistors

variable and fixed resistors

Parallel and series connection of electric lamps

Parallel and series connection of electric lamps

Asexual reproduction in simple organisms

Asexual reproduction in simple organisms

insectivorous plants

insectivorous plants

Path of light rays through mirrors and lenses

Path of light rays through mirrors and lenses

objects in the sky

objects in the sky

Magnetism .. all about magnets

Magnetism .. all about magnets

chemical and physical changes

chemical and physical changes

a journey to the other planets... calculate your weight and age

a journey to the other planets... calculate your weight and age

the simplest way to calculate the density of a solid object.

the simplest way to calculate the density of a solid object.

mass and weight

mass and weight

Aurora .. The dancing lights

Aurora .. The dancing lights

your skeleton.. part 2 (The appendicular skeleton)

your skeleton.. part 2 (The appendicular skeleton)

your skeleton.. part 1 (The axial skeleton)

your skeleton.. part 1 (The axial skeleton)

Balancing the chemical equation

Balancing the chemical equation

real images formed by concave mirror

real images formed by concave mirror

The meaning of acceleration

The meaning of acceleration

distance and displacement...meaning and difference

distance and displacement...meaning and difference

monsters under the microscope

monsters under the microscope

The solar cell and its function.

The solar cell and its function.

Elements, metals & non-metals

Elements, metals & non-metals

Amazing 3d virtual image

Amazing 3d virtual image

Magic of chemistry.. copper sulphate crystals.

Magic of chemistry.. copper sulphate crystals.

The simplest way to understand the single substitution reaction

The simplest way to understand the single substitution reaction

Double replacement reaction, reaction between silver nitrate and sodium chloride.

Double replacement reaction, reaction between silver nitrate and sodium chloride.

Basic oxides and their effect on litmus paper

Basic oxides and their effect on litmus paper

Amazing facts about snails🐌🐌🐌

Amazing facts about snails🐌🐌🐌

slugs in my lab

slugs in my lab

Burning magnesium

Burning magnesium

what is the chemical reaction?

what is the chemical reaction?

🎧test it now🎧 sharp and rough tones

🎧test it now🎧 sharp and rough tones

your respiratory system in a capsule👃👃👃

your respiratory system in a capsule👃👃👃

The ionic bond

The ionic bond

The levers.. meaning and classification

The levers.. meaning and classification

Friction .. meaning, types & factors

Friction .. meaning, types & factors

your digestive system in a capsule 🍗🍗🍗

your digestive system in a capsule 🍗🍗🍗

formation of real image by a concave mirror

formation of real image by a concave mirror

Mixing colored lights

Mixing colored lights

💥Reaction of sodium with water💥

💥Reaction of sodium with water💥

the periodic table garden .. alkali metals

the periodic table garden .. alkali metals

law of levers

law of levers

shots for earth from international space station

shots for earth from international space station

The extinct tasmanian tiger

The extinct tasmanian tiger

ants Kingdom

ants Kingdom

images formed by different mirrors

images formed by different mirrors

crazy centrifugal force

crazy centrifugal force