| 000 | 00972nam a2200169 a 4500 | ||
|---|---|---|---|
| 005 | 20150716141242.0 | ||
| 008 | 091109s19uu xx 00 eng d | ||
| 020 | _a1-4171-0393-0 | ||
| 245 | 1 | 0 | _aChemical Reactins & Electricity. |
| 260 | 0 |
_aWynnewood, PA : _bSchlessinger Media, _c2006. |
|
| 440 | 0 | _aScience Clips of Students | |
| 500 | _a18 minutes | ||
| 520 | _aWhy are some reactions in the world around us irreversible? How is the flow of electrical energy in a complete circuit like water flowing over a waterwheel? In Chemical Reactions & Electricity, viewers observe chemical reactions in nature and in the laboratory to uncover the difference between physical and chemical changes They use models and travel to huge electric plants to explore the various parts of an electrical circuit, and see how current flows to provide the power we need to keep our world in motion! | ||
| 650 |
_aChemical Reactions _xScience |
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| 650 | _aElectricity | ||
| 942 | _c UKN | ||
| 999 |
_c78470 _d78470 |
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