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 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:......

Keywords: Convection – Heat – Fluids – Air – Transfer

purpose of experiment The difference in the degree of heat conduction of different metals Tools Bunsen flame - 2 metal stands - stopwatch - candle gun - 3 desk pin - 3 rods (copper, iron, aluminumsteps Fix each desk pin on each leg using a wax gun.Light a flame to allow heat to travel to each leg.Ca......

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......

Gravity between the sun, earth and moonKeywords (English): gravity – sun – Earth – moon – orbital motion

Three states of matterThis experiment shows how water changes between its three states due to temperature. Ice melts when heated to become liquid water, then turns into vapor with continued heating. When the vapor touches a cold surface, it condenses back into water droplets.states of matter – solid......

Keywords: Mixing substances – Separating a mixture of liquids (water and oil) – Separating a mixture of solid and liquid – Separating a mixture of solids

Keywords: Sky – Sun – Moon – Stars – Clouds

Keywords: Water cycle model – Evaporation – Condensation – Precipitation – Model

Objective: To explore the ability of different materials to insulate and reduce sound by comparing sound levels after using various insulating materials.Materials: Different insulating materials (such as paper, bubble wrap, blanket). Sound source. Box with a lid. Sound level meter.Steps: Place the s......

Objective To simulate the formation of crystals in igneous rocks and study the factors affecting the size and speed of crystal formation.Materials Two glass containers _ paper clips _ pencils _ thread _ coarse salt _ hot water _ teaspoonSteps Tie a paper clip to the end of each thread Fill both cont......

Objective: To extract DNA from strawberry cells and observe it with the naked eye.Materials: Ripe strawberry _ Resealable plastic bag _ Dish soap _ Table salt _ Warm water _ Cheesecloth _ Glass cup _ Alcohol _ Wooden stickSteps: Place the strawberry in the plastic bag and mash it thoroughly. Mashing......

Objective To determine the concentration of an unknown solution through an acid-base reaction using the equivalence point.Tools Beaker – burette – burette stand – unknown acid or base solution – standard solution of known concentration – suitable indicator – graduated cylinderSteps Place a measured......

Objective Create a model of a plant fossil to understand how real fossils form and how plant traces are preserved in sedimentary rocks.Tools Modeling clay (Plasticine) – leaf with visible veins – bag of Plaster of Paris – water – bowl – stickSteps Roll the clay slightly larger than the leaf. Place t......

Objective: To identify fungal diversity by examining different samples with the naked eye and then under the microscope, and comparing their morphological characteristics.Materials: Fungal samples _ mushroom _ bread mold _ lichen _ bracket fungus _ prepared microscope slides for each sample _ light......