A. Objective The learners should be able to investigate changes that happen in the absence of oxygen. B. Materials ● fire. Activity: TITLE: ABSENCE OF OXYGEN Jar with cover (Jar A) Jar without cover (Jar B) 2 same sized candle (small) Match or lighter Timer Ruler C. Precautionary Measure Remember to handle match or lighter carefully and don't play with it for it can cause D. Procedure 1. Label the jar with cover with Jar A and the jar without cover as Jar B. 2. Light the candles with a match and put the candles in each jar. 3. Record the time when the candles are lighted and the time when the light was put off. 4. Cover the Jar A and observe what will happen. 5. Measure the length of the candles after the flame was put off. 6. Record your findings on the chart below. Jars JAR A JAR B Time of the flame was put off Length of the candle after burning Answer the following questions: 1. Which of the 2 jars was the candle's flame put off first? 2. Which of the two candles has the shortest size? 3. What happen, when you cover the Jar A? 4. When the lighted candle in Jar A was covered, the flame was put off, what is the reason why the candle's flame did not continue to burn? 5. What are the 3 main components in combustion? Doss​

Inspecting Hand Tools, Drawing Instruments, Equipment's, and Paraphernalia The dream of Jasmin to become an architect requires more preparations, knowledge and skills. This includes the aspect of drawing, and selecting tools linked in different jobs. Technical drawings are essential to constructing everything in society from the house one lives in, to the computer on your desk, to a simple paperclip. These drawings, created by a draftsperson or engineer, must be understood by hundreds of other people in our society. Drafting is truly a universal language. The Drafting and Design program is designed to promote understanding and application of the graphical language used in technical drawings. Drafting and Design will provide a foundation for future employment or post-secondary education in many fields. In line with these, the draftsmanshould know how to inspect, request, evaluate the condition of tools, instruments, equipment's and paraphernalia to be used in particular job. We have suggested inspection processes for Drafting hand tools, instruments, equipment, and paraphernalia. The first one is the Visual Inspection; it is the oldest and most basic method of inspection. It is the process of looking over a piece of equipment or tools using the naked eyes looking for flaws. In my opinion, it is the process that you can easily apply in your daily activities. Visual Inspection has two types: Aided and Unaided Visual Inspection​

Answer:

Aided Visual Inspection involves the use of magnifying lenses or microscopes to enhance the visibility and clarity of the inspected item. This can be useful for detecting small defects or imperfections that may not be visible to the naked eye.

On the other hand Unaided Visual Inspection relies solely on the observer's eyesight and judgment. It involves carefully examining the tools or equipment from different angles and distances to identify any visible issues or abnormalities.

The second method of inspection is Physical Inspection. This involves physically handling and manipulating the tools instruments equipment or paraphernalia to check for any signs of wear damage or malfunction. It may include checking for loose or broken parts ensuring proper alignment and assessing the overall condition and functionality.

During physical inspection it is important to pay attention to details such as rust corrosion dents cracks or any signs of wear and tear. Moving parts should be checked for smooth operation and measurements should be verified for accuracy.

The third method of inspection is Performance Inspection. This involves testing the tools instruments equipment or paraphernalia to ensure they perform as intended. For example a drafting instrument such as a compass should be checked to ensure it can create accurate circles and a drafting machine should be tested to ensure it moves smoothly along the drafting table.

Performance inspection may also involve conducting simulated or actual use of the tools or equipment to assess their functionality accuracy and reliability. This can help identify any issues that may affect the performance or output of the tools.

Finally there is Documentation Inspection. This involves reviewing any documentation such as instruction manuals maintenance records or inspection reports to gather information about the tools instruments equipment or paraphernalia. It can provide insights into the proper usage maintenance requirements and any previous issues or repairs.

Documentation inspection is valuable in understanding the history and condition of the tools instruments equipment or paraphernalia and can assist in making informed decisions regarding their suitability for use.

In conclusion inspecting hand tools drawing instruments equipment and paraphernalia is an important step before using them in any job. By conducting visual inspections physical inspections performance inspections and documentation inspections one can ensure that the tools are in good condition reliable and ready for use.