六上科学实验操作培训(国外英文资料).doc

六上科学实验操作培训(国外英文资料) Six operation training of scientific experiments Tools and machinery unit The second class lever of Science 1, the experimental research of lever scale Experimental materials:? Floor 1 block, 1 foot long stent, lever 1, hook code number. (in school) Method of operation?: (1) according to the studies in Figure assembled experiment device; (2) how to measure the division introduced the assembly method and fulcrum, resistance force, position and resistance and forced to pivot distance; (3) in the election of a foot lever on both sides of the position were placed on the different number of hook codes until the foot lever balance so far, and record the corresponding data to the P6 data sheet, determine its strength; (4) the analysis of the experimental data exchange; (5) conclusion. Study on the third class lever type tool Comparison of Experiment 1, lever type tool ? materials: iron lever cover (or screwdriver), bottle opener, clip (or tweezers), canned food, beer bottle. (self) Method of operation?: (1) with a cover sheet to pry pry open a bottle of beer, canned bottle opener, clip; (2) the analysis of the three point position and force in the textbook on the P7 map. Study and manufacture of 2 small steelyard (let students do) Experimental materials: 1? (a) long chopsticks, screw cap or hook code (Cheng Tuo), thick cotton string or fishing line, small plastic disc (Pan), weight (50 grams), scissors. (self) Method of operation?: (1) as the textbook P9 pictures, put a chopstick polished one screw cap or hook code for fishing line for weight; (2) made of a pan, fasten the three as long as the string and fixed onto the beam; (3) in weight with a choice between positions appropriate on a rope, as the balancing point first experiment; (4) using the balance principle of making small tray steelyard scale, in each tray with a weight (50 grams), the mobile weight scales balance, and mark the position of a hanging weight, until exhausted weighbeam. Lesson eigh