Fifth Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 2
Third Grade Science Volume 2, Textbook Edition
Science Edition for Sixth Grade Science Volume 1
Third Grade Science Volume 1, Textbook Edition
Fourth Grade Science Volume 2, Textbook Edition
Fourth Grade Science Volume 1, Textbook Edition
Qingdao Edition Fourth Grade Science Volume 2
Hunan Education Edition Fourth Grade Science Volume 1
E-education edition fifth grade science volume 1
E-education edition fifth grade science volume 2
Qingdao Edition Fifth Grade Science Volume 2
Fourth-grade science volume 2 of the E-education edition
Fifth Grade Science Volume 2, Textbook Edition
Zhejiang Education Edition Seventh Grade Science Volume 2
E-education edition third grade science volume 2
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Category | Format | Size |
---|---|---|
E-education edition fifth grade science volume 2 | pptx | 6 MB |
Description
"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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"End of Chapter Review Lesson" Iron Metal Materials PPT:
"End of Chapter Review Class" Iron Metal Materials PPT Special Topic Summary of the Application of Practice Conservation Method in Chemical Calculations Conservation Relationship Characteristics Mass Conservation Macroscopically: Conservation of mass of substances before and after reaction Microscopically: Conservation of the number of atoms of elements before and after reaction Electron conservation Oxidation and reduction. .
"Integration Improvement at the End of Chapter" Iron Metal Material PPT:
"End-of-Chapter Integration Improvement" Iron Metal Materials PPT Part One Content: Method 1 Common Methods of Chemical Calculation Conservation Method [Typical Example 1] Add 100mL1mol/L to a certain amount of Fe, FeO, Fe2O3 mixture Hydrochloric acid, just enough to completely dissolve the mixture, releases 224..
"Metal Materials" Iron Metal Materials PPT (Application of the quantity of matter in the calculation of chemical equations in Lesson 2):
"Metal Materials" Iron Metal Materials PPT (Application of the amount of matter in the calculation of chemical equations in Lesson 2) Part One Content: Learning Objectives Course Standards 1. Combined with chemical equations to understand the amount of matter, molar mass, gas molar volume, and matter Concepts such as quantity and concentration...
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Update Time: 2024-09-09
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