• Kindergarten parent-child elementary school students science and technology small production small motor diy manual scientific invention self-made Trojan horse material
  • Kindergarten parent-child elementary school students science and technology small production small motor diy manual scientific invention self-made Trojan horse material
  • Kindergarten parent-child elementary school students science and technology small production small motor diy manual scientific invention self-made Trojan horse material
  • Kindergarten parent-child elementary school students science and technology small production small motor diy manual scientific invention self-made Trojan horse material
  • Kindergarten parent-child elementary school students science and technology small production small motor diy manual scientific invention self-made Trojan horse material
Kindergarten parent-child elementary school students science and technology small production small motor diy manual scientific invention self-made Trojan horse material
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Question: How to make the electric fan of the small invention of science and technology

Answer: Just done...

Question: How to make a small tech production with a motor

Answer: Steps should also say that that is too that

Question: Be quick.

Answer: Production process: 1 The upper part of an empty beverage bottle of 250ml insulated bottle; the cut part is divided into 8 parts, use scissors to cut the neck of the bottle, and then, cut each flower into the same size.

Question: How to use bottles, gears, small motors and batteries to make technological small productions?

Answer: ..

Question: How to do it

Answer: Answer: electric fan

Question: Science small production small motor composition

Answer: Thinking of the sage of Tang Zong, Deze Huanyu; remembering the merits of the sages, England and Kyushu...

Question: How to use a small motor to make a small technological production, use a small electric fan motor to make a...

Answer: Answer: Use the motor to make a fan, and the classmate won a prize with this thing

Question: ?

Answer: Answer: You can make a hand-cranked one, you can also use a clockwork to convert the elastic potential energy into kinetic energy, or use the recoil effect, such as a balloon jet to drive the fan blades to rotate.

Question: ...

Answer: Answer: Some useful items can be made, such as coil winders...

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