Objective: Preparation of ethene gas from ethyl alcohol (ethanol) and identification of the dehydration reaction of alcohols.Materials: Bunsen burner _ Round-bottom flask _ Thermometer _ Ethanol (ethyl alcohol) _ Concentrated sulfuric acid _ Bottle containing sodium hydroxide solution _ Water trough......

Objective: To determine whether microorganisms can arise spontaneously from broth or whether they come from microorganisms present in the air.Materials: Glass flasks with curved necks (swan-neck flasks) Clear nutrient broth Heat source for boiling the brothSteps: Place clear nutrient broth in flasks......

Objective: Determine the kinetic energy of a moving object and study the relationship between the object's speed and mass when displacement is constant.Materials: Glider moving on an air track _ Elastic rubber cord _ Photogate sensor _ Electric timer or stopwatch _ Ruler for measuring distanceSteps:......

Objective: To study the effect of a concentrated solution on plant cells and observe plasmolysis resulting from water leaving the cell by osmosis.Materials: Small piece of red onion epidermis _ Microscope slide _ Cover slip _ Dropper _ Distilled water _ 30% sugar solution _ Blotting paper _ Light mi......

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This experiment demonstrates how to determine the water content of popcorn kernels by comparing their mass before and after heating. The popcorn loses part of its mass as the water inside evaporates.Keywords: Water Content • Popcorn Kernels • Initial Mass • Heating • Water Evaporation • Final Mass

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