Detailed Lesson Plan in Science IV (Soil Erosion) I. Learning Objectives a. Identify the agents of soil erosion. b. Explain how each agents cause erosion. c. Perform related activities enhancing knowledge about soil erosion. d. Enumerate ways and means on how to help prevent soil erosion. II. Subject Matter a. Topic: Soil Erosion b. References: c. Concepts: Soil Erosion and its Effects d. Sciences Processes: Observation‚ Experimenting‚ Analysing e. Materials: 2 large
Premium Evaporation Liquid Water
Recrystallization is the process in which a chemical compound becomes a solid. The difference between recrystallization and the presence of precipitate is the structure. In Cystristalizatqion the solid compound contain a crystal-like structure. According to Hill and Barbaro the most common method of purifying organic compounds. Not only does recrystallization allow people with the ability to converting organic molecules to crystal-like solids. This process is performed in the creation of rock candy Barbaro
Premium Solubility Solid Chemistry
and Growth of Semiconductors In studying solid state electronic devices we are interested primarily in the electrical behavior of solids. However‚ we shall see in later chapters that the transport of charge through a metal or a semiconductor depends not only on the properties of the electron but also on the arrangement of atoms in the solid. In the first chapter we shall discuss some of the physical properties of semiconductors compared with other solids‚ the atomic arrangements of var- ious materials
Premium Crystal structure Solid Silicon
escape. They collect as a vapor above the liquid. Some molecules condense back into a liquid. 3. Most solid substances are crystalline. In a crystal the particles are arranged in an orderly‚ repeating‚ three-dimensional pattern called a crystal lattice. Figure 13.10 shows part of the crystal lattice in sodium chloride. The shape of a crystal reflects the arrangement of the particles within the solid. Figure 13.10 The orderly arrangement of sodium and
Premium Gas Water Pressure
substances. My original sludge had a liquid on top and solid(s) on the bottom. The liquid was clear‚ and most of the solid was tan. There was a small layer of blackish/brownish particles in the middle of the tan solid. There were small yellow “rocks” visible on the surface of the tan solid. For the first physical observation‚ I tried smelling the mixture. It smelled like permanent marker. Next I tried sticking a spoon in it and stirring the tan solid lightly. It looked like it was an
Premium Chemistry Chemical substance Chemical compound
cool hot vapors or liquids Test Tube A small cylindrical glass used for heating small amounts of liquid open at the top‚ usually with a rounded U-shaped bottom. Test tubes are widely used by chemists to hold‚ mix‚ or heat small quantities of solid or liquid chemicals Evaporating Dish A porcelain used in evaporating chemical solutions Evaporating dishes are used to evaporate excess solvents Beaker Thin glass vessel used as container and heating liquids It is used for stirring‚ mixing
Premium Laboratory glassware Water Liquid
Na2CO3 → CaCO3 + 2 Na + 2 Cl Purpose: Determine the amount of ions‚ specifically calicum‚ that are present in multiple samples of water by adding another chemical to create a reaction to percipitate the calcium out of the water into a measureable solid Materials: balance (.001g)‚ 100ml beakers‚ graduated cylinder‚ drying oven‚ Na2CO3 (sodium carbonate)‚ stir rod‚ scoopula‚ DI water‚ watch glasses‚ filter paper‚ ring stand‚ funnel‚ water samples with CaCl2 (calcium chloride) Procedure: 1. Measure
Premium Calcium Water Sodium
I. DATA AND OBSERVATIONS Table 1. Description of reagents. Reagents Description Salicylic acid Fine powdery white solid crystals 95% ethanol Clear colorless liquid Acetyl chloride Clear colorless liquid with gas escaping from container FeCl3 Clear colorless liquid Commercial aspirin Fine powdery white solid crystals I2/KI Deep black liquid KMnO4 Brownish liquid Phosphoric acid Clear colorless liquid Table 2. Preparation of Aspirin. Description Salicylic acid + Acetyl
Premium Solid Primary color Acetic acid
concentrated operations‚ after leaching the pulp slurry and chemical precipitation should be subject to the solid phase and liquid phase separation‚ in order to meet the requirements of the subsequent operations.Vibrating grizzly feeder The technology selected for the purpose to reach the solid-liquid separation and washing‚ often several times. When washing operations are recycling solid waste solution‚Cement rotating dryer the general cross-flow washing process (that is‚ each time to give into
Premium Chemical engineering Solid Water
machine. The melting point is the temperature at which a solid precipitate changes into its liquid form upon heating. The melting point of benzoic acid‚ the aromatic carboxylic acid was 122°C. Thus‚ the product contained impurities which caused the solid to melt at a lower temperature than the actual temperature. Pure solids typically melt at higher temperatures while impure solids melt at lower temperatures. This is due to the fact that a solid cannot form when it is held together by tight intramolecular
Premium Temperature Water Liquid