Keywords: Ammonia – Hydrogen chloride – White vapor – Gas combination

Keywords: Relative Velocity – Motion – Displacement – Time – Physics

Keywords: Reaction rate – Chemical reactions – Rate of reaction – Variables

the goal:The hydrogen atom discrete spectroscopyMaterials and tools:Hydrogen gas electrical discharge tube - triple glass prism - white screen - two vertical micro-slits opposite each other - metal rod - connecting wiresSteps:1-Connect the positive terminal of the voltage source to the base of the e......

This experiment aims to determine the density of solid objects by measuring their mass and volume. The mass is measured using a balance, while the volume is determined either from the object’s dimensions (if it has a regular shape) or by water displacement in a graduated cylinder (if irregular). The......

The goal of the experiment This experiment aims to practically determine the density of a liquid. Experiment Tools Scale - Included tester - different liquids with different volumes Steps of the experiment Choose a few different sized liquids from the lab library. Weigh the tester blank inserted and......

Science curriculum for the first grade of middle school The first unit: periodicity of the element Lesson two: List the properties of the elements in the periodic tableObjective: Determine the volume of a solid object using the known volume of a liquidMaterials: Graduated cylinder – Water – Various......

purpose of experiment To realize the concept of energy survival Experiment Tools: Simple Pendulum - Double Pendulum Steps of the experiment Pull the pendulum ball up from its rest position and release it, and see what happens. Get a double pendulum or two similar pendulums. Pull the ball of one of t......

The goal of the experiment: Explain the difference of materials from each other in the ability of electrical conductivity Experience Tools:  Battery - electric lamp - glass cup - acids, strengths, salts and sugar solution - wood - copper - steel nail - connecting wires Steps of the experiment:......

The goal of the experiment: experiment to learn the concept of speed and how we can measure it Experience Tools:  different speed cars – stopwatch- measuring tape Steps of the experiment: The conclusion: Keywords (English): speed – motion – distance – time – speed measurement

Objective:Learn how the Hofmann apparatus works and use it to electrolyze water into hydrogen and oxygen gases, while observing the amount of gas produced at each electrode.Materials:Hofmann apparatus – Electrical power source battery – Water – Dilute sulfuric acid H₂SO₄ – Dropper – Connecting wires......

The goal of the experiment: Explain the movement drawing at regular speed graphically   Experiments Tools:  Regular speed cars - stopwatch - metric tape measure Steps of the experiment: The Observation & Conclusion: We notice that the relationship between distance and time is represen......

Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): mercury oxide – thermal decomposition – mercury – oxygen

Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): copper hydroxide – thermal decomposition – heating – oxides

Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): copper carbonate – heating – decomposition – carbon dioxide

Unit one: chemical reactions.  Lesson one: chemical reactions.Objective: To study the thermal decomposition of copper sulfate.Materials: Copper sulfate _ Spoon _ Bunsen burner _ Test tubeSteps: Heat a small amount of blue copper sulfate in a test tube using a Bunsen burner.Observation: A black......

Unit one: chemical reactions.  Lesson one: chemical reactions.Keywords (English): thermal decomposition – sodium nitrate – heat – oxides – thermal reaction

Unit one: chemical reactions. Lesson one: chemical reactions.Keywords (English): silver nitrate – sodium chloride – white precipitate – precipitation reaction

The process of oxidation and reduction according to the traditional conceptKeywords (English): oxidation – reduction – electron loss – electron gain – redox reactions

Unit Two: Sound and Light. Lesson 2: The wave nature of light.Keywords (English): illumination intensity – distance – light – inverse square law – light source

Unit Two: Sound and Light. Lesson 1: Characteristics of sound waves.Keywords (English): sound – density – sound intensity – wave propagation – medium

Unit Two: Sound and Light. Lesson 1: Characteristics of sound waves.Keywords (English): Savart wheel – centripetal force – acceleration – circular motion

Unit One: Chemical Reactions. Lesson two: the speed of chemical reactions.Keywords (English): concentration – reaction rate – reactants – collision frequency

Unit One: Chemical Reactions. Lesson two: the speed of chemical reactions.Keywords (English): surface area – reaction rate – reactants – collisions

Objective To observe the effect of temperature on the rate of a chemical reactionTools Two glasses with equal amounts of water, one hot and one cold Two effervescent tabletsSteps Place one tablet in the hot water and the other in the cold water Compare the rate of fizzing in both glassesObservation......

Unit One: Chemical Reactions. Lesson two: the speed of chemical reactions.Keywords (English): enzymes – reaction rate – catalysts – biochemistry

Unit Two: Sound and Light. Lesson 2: The wave nature of light.Purpose of experimentLight travels in straight linestoolswooden or carton screen, each one has a centered hole, candle, lighterstepsWelcome. Now you are going to do an experiment that shows that light travels in straight lines. Look......

Purpose of experimentThe direction of the free magnettoolsmagnetic rod - metal paper clipsstepsWelcome. Now you are going to do an experiment that shows.. Indicates the direction of the free magnet, Look at the Theoretical framework On the lab board, then bring the tools to the lab bench, ......

purpose of experimentGenerating electric current using magnetsToolsA long insulated copper wire coiled in the form of a coil consisting of several coils - a magnet in the shape of the letter U - a device for measuring currentsteps1. Welcome. You are going to conduct an experiment that shows how an......

Objective: To deduce that cathode rays are negatively charged particles as proven by ThomsonMaterials: Cathode ray tube _ electric power source _ magnetSteps: Connect the cathode ray tube to a power source Observe a straight luminous beam inside the tube Bring the magnet closer and observe what happ......

An experiment demonstrating the difference between electrolytic and non-electrolytic solutions by testing their ability to conduct electric current using a simple electrical circuit and observing the brightness of a lamp.Keywords: Electrolytic Solutions - Non-Electrolytic Solutions - Electrical Cond......

Purpose of experimentPreparation of carbon dioxide gas in the laboratorytoolsgraduated flask - glass beaker - cork stopper with two holes - glass funnelU-shaped glass tube - dilute hydrochloric acid - calcium carbonatesteps Place the candle in the middle of the lab bench.Light the candle by usi......

purpose of experiment illustrate chemical indicators tools Hydrochloric acid – sodium hydroxide – orange methyl indicator – litmus indicator – bromothymol blue indicator – 12 conical flask – distilled water-Phenolphthalein indicator StepsPut 10 ml of the solution in front of you into each conical......

Objective of the experiment:To study BallisticsExperiment tools:Installed cannon - small ball – rulerExperiment steps:- Adjust the thrust angle 30 ֯ and place the ball in the front of the cannon.- Press the cannon motor to push the ball and observe the trajectory of the throw.- Measure the distance......

the goal:Identifying the components of the digestive system.Materials and tools:A model of the digestive system organs - Anatomy lab - Dissection tools.Steps:Click on the digestive system button, then click on each organ button to display it.You can also click on the 3D button to view the organs in......

Detection of the chloride anionThis video shows how to do the experimenthttps://youtu.be/_2a2CeQxanw

Objective of the experiment:fat detectionExperiment tools:Vegetable oil - Skimmed milk - Whole milk - Sudan III solution - Test tubesExperiment steps: - Put 2 ml of milk into test tubes.- Add 5 ml of water into a test tube and then put 2 ml of oil.- Add 10 drops of Sudan III solution to th......

Unit One: Forces and Motion.Lesson One: types of levers.Objective of the experiment:To identify to the first class leversExperiment tools:pliers - pincers - scissors - water pump - nail clippers - hammer - crowbar and rock - balance scaleExperiment steps:- Use each lever in its correct position......

Unit One: Forces and Motion.Lesson One: types of levers.Objective of the experiment:To identify to the second class leversExperiment tools:nutcracker - bottle opener  - Paper stapler - wheelbarrowExperiment steps:- Use each lever in its correct position.- We note that each lever that was u......

Unit One: Forces and Motion.Lesson One: types of levers.Objective of the experiment:To identify to the third class leversExperiment tools:holder - tweezers - fishing rod - broom - golf clubExperiment steps:- Use each lever in its correct position.- We note that each lever that was used is a thi......

Keywords: Soil – Sand – Silt – Humus – Rocks

Keywords: Friction – Motion – Surfaces – Force – Resistance

Keywords: Periodic table – Elements – Groups – Periods – Classification

Keywords: Lever law – Force – Arm – Fulcrum

Keywords: Blood groups – A B O – Clotting – Antibodies

Objective:Identify the effect of the reaction of reactive metals with hydrogenMaterials:Glass beaker – Water – Lithium – Sodium – Potassium – Tongs – Thermometer – Phenolphthalein solutionProcedure:Fill three beakers with equal amounts of water Add a few drops of phenolphthalein solution to each bea......

Keywords: Bernoulli’s principle – Pressure – Velocity – Fluids – Flow

Keywords: pH – Litmus paper – Solutions – Acidic – Basic

Keywords: Vernier caliper – Precise measurement – Lengths – Measuring tools

Keywords: Equation balancing – Chemical equilibrium – Reactants – Products – Atoms

Pre-Test | Test Your Knowledge1. What do you expect to happen when positively charged particles are directed toward the atoms of a material?2. If most particles pass through a thin sheet without deflection, what can you infer about the structure of the atom?3. Why might some particles change directi......

Keywords: Epithelial tissues – Simple – Compound – Cells – Covering

Keywords: Myopia – Hyperopia – Astigmatism – Lenses – Vision

Keywords: Polysaccharides – Starches – Iodine – Food

Keywords: Kelvin experiment – Static electricity – Voltage – Charges

Keywords: Osmosis – Semipermeable membranes – Concentration – Water – Diffusion

Keywords: Nitrite anion – Griess reaction – Pink color – Chemical analysis

Keywords: Free fall – Gravity – Acceleration – Time – Motion

Keywords: Vectors – Addition – Resultant – Angle – Force

Keywords: Amylase enzyme – Temperature – Digestion – Starch – Enzyme activity

Keywords: pH – Enzyme activity – Reaction – Digestion

Keywords: Total reflection – Critical angle – Waves – Optics

Keywords: Resistors – Parallel – Electric circuit – Current – Voltage

This experiment aims to detect the ferric ion (Fe³⁺) in an iron chloride solution. When bases such as ammonium hydroxide or sodium hydroxide are added to the iron chloride solution, a reddish-brown precipitate of ferric hydroxide is formed. When hydrochloric acid is added, this precipitate dissolves......

Keywords: Resistors – Series – Current – Voltage – Circuitlet title_ar = ["التوصيل على التوالي والتوصيل على التوازي"]; let title_en = ["Series and Parallel Circuits"]; let title_fr = ["Circuits en série et en parallèle"]; let title_de = ["Reihen- und Parallelschaltungen"]; let title_id = ["Rangkaian......

Keywords: Double slit – Interference – Diffraction – Waves – Light

Keywords: Sulfide anion – Rotten egg smell – Hydrogen sulfide

Keywords: Thiosulfate – Chemical analysis – Reaction – Solutions

Keywords: Chemical properties – Metals – Oxidation – Oxides - Magnesium

The color of gold changes according to the size of the gold nanoparticles:Tools Samples of nanoparticles of gold (visible sample)A sample of gold minutes is small, its minutes are measured in macrosteps Bring the gold sample measured by the macro and display the flashlight on it and note what h......

"An interactive experiment to understand Kirchhoff’s Second Law (Voltage Law), allowing users to build electrical circuits and measure voltage differences between various points using a tester. Users can modify the circuit configuration (series, parallel, and mixed) and observe how voltage is distri......

Keywords: Transverse waves – Vibration – Amplitude – Crest – Trough

Keywords: Respiratory system – Lungs – Respiration – Trachea – Oxygen

Keywords: Circulatory system – Heart – Blood – Vessels – Circulation

Keywords: Skeletal system – Bones – Joints – Skeleton – Support

Keywords: Nervous system – Nerves – Brain – Spinal cord – Nerve signals

Keywords: Bicarbonate – Carbon dioxide – Acids – Bubbles

Keywords: Nitrate anion – Dark brown reaction – Chemical analysis

Keywords: Ferrous ion – Green color – Chemical tests

aluminum is present, a white precipitate forms, which dissolves in excess base. This method relies on the formation of aluminum hydroxide, which distinguishes Al³⁺ ions from other cations.Aluminium – Gelatinous precipitate – Chemical analysis

Keywords: Sulfite – Sulfur dioxide – Oxidation – Tests

Detection of the phosphate anionKeywords (English): phosphate ion – yellow precipitate – chemical analysis – reagents

save momentumKeywords (English): conservation of momentum – collision – mass – velocity – linear momentum

Faraday's experimentKeywords (English): Faraday experiment – electromagnetic induction – induced current – magnet

The relationship between velocity and kinetic energyKeywords (English): kinetic energy – speed – mass – motion – physics

Please watch the video of the experiment here before starting itKeywords (English): iodide ion – yellow precipitate – silver nitrate – chemical test

Detection of monosaccharides and disaccharides

Calculating the instantaneous induced electromotive force in the generator coil during a full cycleKeywords (English): induced emf – induction – coil – generator – magnetic field

Proving the law of levers by using spring balanceKeywords (English): lever law – spring balance – force – arm – fulcrum

Parallel Connection This video shows how to conduct the experimentKeywords (English): parallel connection – electric circuits – voltage – current

Objective: To investigate the effect of changing the number of bulbs in a series circuit and determine the effect of disconnecting or breaking one bulb on the operation of the electrical circuit.Materials: Battery _ electrical switch _ small light bulbs _ connecting wires _ hammerProcedure: Construc......

Parallel connection

realization of light refraction

How do pulleys help you lift things?

Electric Electroscope (Induction and Conduction)

How do charged objects interact at a distance? (introductory experiment)

static friction and sliding friction

the goal:Designing a Model for Electric Current Flow in a Simple Electrical CircuitMaterials and tools:Plastic funnel - Plastic tubes of different diameters - Metric ruler - Stand with clamp - Stopwatch - Two glass cupsSteps:1. Place the glass cup under the ring stand and secure the plastic tube in......

Keywords: Acceleration – Deceleration – Speed – Time – Motion – Graphical representation

Animal and plant cell under a microscopeKeywords (English): animal cell – plant cell – microscope – nucleus – organelles

Keywords: Newton’s second law – Force – Mass – Acceleration – Equation F=ma

Keywords: Boyle’s law – Pressure – Volume – Gases – Inverse relationship

Keywords: Radiation – Alpha rays – Beta rays – Gamma rays – Radioactivity – Nucleus

Force and Acceleration force – acceleration – Newton’s second law – mass

How do generators work?Keywords (English): electric generator – induction – magnetic field – electric current

the goal:Determine the value of atmospheric pressure using a mercury barometer.Materials and tools:tube 90 cm - basin - mercury - glass plate - holderSteps:1) Fill the test tube and the glass bowl with mercury.2) Drop the test tube in the pelvis and note what happens. Note:The drop in the level......

Manometer deviceKeywords (English): manometer – pressure measurement – gas pressure

Keywords: Molar volume – Avogadro’s number – Gases – Ideal gas law – Measurement

the goal:Learning how to prepare ester.Materials and tools: Electric heater - Glass cup - Test tube - Salicylic acid - Methanol - Sulfuric acid - Cotton - SpoonSteps:1. Fill the glass with water and heat it on the electric heater to the mid-level temperature.2. Weigh 1.5 grams of salicylic acid......

Keywords: Convex lens – Concave lens – Refraction – Focal point – Image

The effect of speed in collisionKeywords (English): speed effect – collision – impact – momentum

Light interaction with different types of materials (Reflection)reflection – light – materials – surfaces

Keywords: Ohm’s law – Voltage – Current – Resistance – Circuit

Determine the molar ratiomole ratio – moles – stoichiometry – chemical reaction

Keywords: Pascal’s principle – Pressure – Fluids – Hydraulics – Force

Keywords: Potential energy – Kinetic energy – Transformation – Gravity – Motion

Keywords: Height of the object – Potential energy – Gravity – Mass – Physics

Keywords: Melting point – Materials – Bonds – Solid state – Heat

Keywords: Galvanic cell – Cell voltage – Electrodes – Electrons – Voltage

Keywords: Circular motion – Path – Angular velocity – Centripetal force

Investigation of the process of electrolysis of waterelectrolysis of water – oxygen – hydrogen – electric current

Keywords: Pure water – Neutral – pH 7 – Indicators – Acids and bases

Keywords: Displacement reaction – Iron – Copper sulfate – Copper precipitation – Chemical change

Comparison of different types of blotting papersKeywords (English): paper towel – absorption – water – comparison – porous materials

Keywords: DNA replication – Chromosomes – Genetic code – Replication enzymes

This experiment demonstrates how the instantaneous velocity of a pendulum changes during its motion. The speed increases as the pendulum approaches the equilibrium position, reaches its maximum value at equilibrium, and then decreases until it becomes zero at the maximum displacement. The velocity v......

Keywords: Metals – Hardness – Luster – Density – Physical properties

Keywords: Rock dissolution – Acids – Reaction – Carbonates – Carbon dioxide

Keywords: Metals – Hardness – Luster – Density – Physical properties

Phases of mitosis - Cell cyclecell cycle – mitosis – chromosomes – growth – cell division

Keywords: Conduction – Heat – Metals – Touch – Energy transfer

Metals and non-metalsmetals – nonmetals – conductivity – luster – hardness – matter

What makes rocks different from one another? rocks – minerals – color – hardness – texture – geology

Do all types of motion appear the same when represented graphically?graphing motion – speed – time – types of motion – comparison

Is it true that 2N + 2N = 2N? - Sum of the magnitudes of two equal forcesresultant force – equal forces – force vectors – net force – physics

Male and female reproductive systemKeywords (English): reproductive system – male – female – fertility – reproduction

Voltage, current, and resistance. voltage – electric current – resistance – electric circuit – Ohm’s law – potential difference

Keywords: Electrical fuse – Safety – Circuit protection – Overcurrent – Melting