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​

ut What d What do you need to do to make sold ice tum to liquid water? 8 Q2. What do scientists call what happens when a solid changes to a liquid and a liquid change to a gas? 03 Explain what happens to the particles in a solid when the solid changes to a liquid?​

Answer:

To make solid ice turn into liquid water, you need to increase the temperature. Ice melts and changes its state from solid to liquid when it is heated above its melting point.

In scientific terms, when a solid changes to a liquid, it is called melting. When a liquid changes to a gas, it is called evaporation.

When a solid changes to a liquid, the particles within the solid gain enough energy to overcome the attractive forces holding them together in a fixed arrangement. As a result, the particles start to move more freely, but they remain close to each other. This increased movement and weakening of forces allow the solid to change into a liquid state.

Explanation:

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