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​

jessys family recieved a package from her elder sister in canada.the bix contains a bag of candies and chocolates in different flavors. jessy opened a bag and picked one chocolate bar in purple packaging. she ate 4 parts of the chocolate bar. this means she ate 80% of the chocolate bar. how many parts are there in the chocolate bar? can you identify the base,percentage and rate in the problem? are there missing information?what are those,if any?​

Answer:

In this problem, we can identify the following:

Base: The base is the total number of parts in the chocolate bar. We don't know this yet, but we can calculate it.

Percentage: The percentage is 80%, which represents the portion of the chocolate bar that Jessy ate.

Rate: The rate is 4 parts, which is the number of parts that Jessy ate.

To find the total number of parts in the chocolate bar, we can use the formula:

Base = Rate / Percentage

So, the base (total parts of the chocolate bar) = 4 parts / 80% = 5 parts.

Therefore, there are 5 parts in the chocolate bar.