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Activity 1: I can feel it! Objectives: 1. Observe the heat transfer between the source and the heated object 2. Identify the method of heat transfer. 3. Explain how heat transfer occur. Materials: Matchstick, candle, metal spoon or metal rod Precautionary Measures: 1. Be careful in handling hot objects. 2. Do not play with fire. 3. Tie back long hair. 4. Put away flammable objects. Procedure: 1. Hold the metal spoon and feel its temperature. 2. Light the candle. 3. Put one end of the metal spoon in contact with the flame while holding the other end 4. Observe what happens. 5. After a few minutes feel the middle part of the spoon. Guide Questions: 1. What is the source of heat? 2. How will you describe the temperature of the metal spoon before placing it on the flame? 3. What happens when you place the metal spoon on the flame? 4. What method of heat transfer occurs? PIVOT
Organisms of many species are specialized into male and female varieties, each known as a sex. Sexual reproduction involves the combining and mixing of genetic traits: specialized cells known as gametes combine to form offspring that inherit traits from each parent.
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