"Metal" PPT courseware

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"Metal" PPT courseware

Conjectures and hypotheses: What characteristics do copper wire, iron wire and aluminum wire have in common?

All reasoning must be derived from observation and experiment. ---Galileo (Italy)

Experiment 1: Connecting to the circuit

1. Experimental equipment: two batteries, battery holder, lamp holder with small bulb, wires, copper wire, iron wire, aluminum wire, wooden stick, etc.

2. Experimental steps: Connect the wires, small light bulbs and batteries to each other, and then connect the copper wire, iron wire, aluminum wire and wooden sticks to the circuit.

3. Record experimental phenomena:

Experiment 2: Place one end in hot water

1. Experimental equipment: alcohol lamp, iron stand, asbestos net, beaker, water, matches, copper wire, iron wire, aluminum wire, wooden sticks, etc.

2. Experimental steps: Fix the iron stand, put the asbestos net on it, pour a certain amount of water into the beaker, place it on the asbestos net, light the alcohol lamp, and heat. Then put one end of the copper wire, iron wire, aluminum wire, or wooden stick in hot water and touch it with your hands. What do you feel?

3. Record experimental phenomena:

Experiment 3: Polish with emery cloth

1. Experimental equipment: emery cloth, copper wire, iron wire, aluminum wire, etc.

2. Experimental steps: Polish the copper wire, iron wire, and aluminum wire with emery cloth respectively, and observe the polished materials.

3. Record experimental phenomena:

Common characteristics of copper, iron and aluminum

Easy to conduct heat and electricity

Metallic luster and easy to extend

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Update Time: 2024-11-13

This template belongs to science courseware E-education edition fifth grade science volume 2 industry PPT template

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