Small technological production for primary school students

Introduction I think the following is a small science and technology production aimed at primary school students. 1. To make a simple solar water heater, use a large plastic box, black paper, clear plastic film and water. in a plastic box

Small technological production for primary school students

I think the following is a small technology production for primary school students

1 Make a simple solar water heater

Use a large plastic box , black paper, transparent plastic film and water. Punch a small hole in the bottom of the plastic box, cover the box with clear plastic wrap, and place black paper on the bottom of the box.

2. Create a simple volcano model. Place small beads on top of the volcano, then invert the cup onto the playdough. Now you can see what the “volcano” looks like when it erupts.

3. Make a simple electric car

Use a small battery, some metal wires and two pencil leads. Connect one end of the two leads to the positive and negative terminals of the battery, then attach the other ends of the two leads together.

Milk and water are projected into a cup with a flashlight. What is theresult and why?

Have you ever studied physics? Your idea is purely fanciful.

Water-cooled radiators have circulation that carries away heat, and the cooling water is used to cool the processor. Your method makes no sense, because no matter how much heat the water absorbs, it has a limit. “Specific heat capacity” is used to illustrate this concept. If you put the water still and cook it, let alone know if. whether safe or dangerous, water will always have a limit. At some point it will heat up to a temperature similar to that of the CPU, and at that point there will be no point in dissipating the heat. Think about it for yourself! That is, you still rely on the balance between fan cooling and CPU heat generation to stabilize at 60 degrees.

Sometimes your three fans aren't as useful as one windprocessor ilator and may cause turbulence.

And you didn't say if 60 degrees is empty or full load temperature. If fully charged, 60 degrees is considered a very low temperature.

Due to “scattering,” a large number of microparticles scatter the light several times, so that it appears white with light blue. Experimental verification: Take a glass of water, place it on a dark background, put a drop of milk in it, then use a flashlight to illuminate one end of the cup and approach it. The light from the flashlight will appear clear. blue in the water. If you put more milk in the water, the whiter the water becomes, because light is scattered over and over again by these many milk particles, and the result is white.

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