The below mentioned article includes a collection of fifteen experiments on soil. 1. Experiment to measure the temperature of the soil and air: Requirements: Soil thermometer, ordinary thermometer (U-shaped minimum-maximum thermometer), notebook, pencil. Method: (a) Soil temperature: 1. Take a soil thermometer (Fig. 72), set it on the surface of the soil in sun and shade, and note the readings. [...]
The below mentioned article includes a collection of ten experiments on photosynthesis for high school. 1. Experiment to demonstrate Moll's half-leaf experiment for showing that CO2, light, chlorophyll and water are necessary requirements for photosynthesis: Requirements: A potted plant, caustic potash, wide- mouthed bottle, iodine, split cork, water. Method: 1. De-starch a potted plant by putting it in complete darkness [...]
Object: To demonstrate the phenomenon of diffusion. Requirements: Beaker, water, copper sulphate crystals. Method: Take a clean beaker and fill it completely with water. Place a big crystal of copper sulphate on one side of the beaker (Fig. 1). Observations: After some time, crystal of copper sulphate disappears and its particles get equally distributed throughout the water. Results: Molecules of [...]