How to make a manual thermometer?

Question 1: What materials are needed to make a manual thermometer? Straw, red ink, water and basin.

Question 2: Do you need a thermometer to make handmade chocolate? 10, protein will solidify when it decomposes. If the temperature is too high, water will evaporate and the temperature will crystallize. You can add a proper amount of olive oil, and remember to keep stirring and adding water.

Question 3: How to make children's rickety articles become "small technological products"? How to make a simple thermometer with a small process? Make a simple thermometer in a small glass bottle, fill it with half a bottle of colored water and match it with a suitable cork. A thin glass tube with one end sealed is placed on a cork. First heat the sealed end of the thin glass tube (stay away from the fire source when heating to prevent it from breaking), and then ... Software size: ...

Question 4: How do kindergartens make doctoral articles by hand? What is it made of? With paper, wrap a large paper tube around a smaller paper tube and connect the thinnest paper tube in front, which is the needle tube.

Wrap a tissue tube and mark it as a thermometer.

Question 5: What materials and steps are needed to make handmade soap? Reference formula:

Coconut oil 100g palm oil 150g olive oil 250g sodium hydroxide 73g water volume 2 19g.

Preparation tools:

Chemical measuring cup, thermometer, stainless steel pot (the old one is enough), rubber scraper, eggbeater (or electric stirrer), measuring spoon, mold, gloves, scale, goggles (or glasses) and apron.

Production method:

1 Accurately weigh out the required amount of sodium hydroxide in the measuring cup, and add the required amount of water for the formula (at this time, the water temperature will rise, which is alkaline water with strong corrosiveness, so please use it in a ventilated place and be careful). Stir until sodium hydroxide is completely dissolved, and wait for its temperature to drop to about 50 degrees.

2 accurately add the grease in the formula to the pot and heat it to about 50 degrees.

3 slowly pour the alkaline water into the oil pan and stir well.

When the soap gradually thickens and there are obvious traces that can't be scraped off with a scraper (about 30 minutes), you can add essential oil, essence or super fat, stir well and prepare to enter the mold.

5 after entering the mold, it can be placed in a foam box or wrapped in a blanket to keep warm. After about 24~48 hours, it can be demoulded, cut into appropriate sizes and placed in a ventilated place (but please don't let the baby soap bask in the sun to avoid accelerating rancidity).

You can use it after 64 weeks, and you can still hear the skin shouting, "long live handmade soap ~ ~ ~"

Remarks: Please do not use the utensils used to make handmade soap for cooking.

Tools:

Apron gloves glasses

Scraper scraper 2

Type 2 thermometer

Measuring spoon stainless steel cup electronic scales stainless steel pot

Whisker stainless steel stirring rod electric stirrer

Question 6: Pupils make small plastic bottles and chairs by hand.

Tools/raw materials

White paper, pencil, scissors, Buddhist monk's knife, plastic bottle (the bottle body has no concave and convex lines)

Steps/methods

1. Draw the figure of the stool on white paper with a pencil.

2. Cut out a rectangular piece of plastic with scissors.

3. Smooth the plastic board and put it on the drawing. According to the long lines on the drawing, draw lines on the plastic board with a ruler and mark them.

4. Cut off the solid line shown in the figure with scissors.

Finally, put the two pieces together and get a lovely little chair. If you want to make a sofa, you can widen the width of the chair.

Straw bike

Preparation materials: an elbow straw, a slightly hard pointed straw, two disposable transparent plastic cups, cotton swabs, toothpicks, gauze, transparent glue and double-sided tape. ...

Production process:

1. Prepare two disposable transparent plastic cups and cut out two round cups to make wheels.

2. Insert the pointed straw into the elbow straw to make it stronger. Cut it every half centimeter, but you can't cut it.

3. Cut the cut straw from the middle.

4. Wrap the straw around the round cup. One is not enough to connect the second.

5. Insert the thread into the incision in sequence and wind it into the shape of wheel steel wire.

6. Use a straw as the shaft in the middle of the wheel. Make two wheels in the same way.

7. Fold the straw into a U shape and combine it with the wheel with a toothpick.

8. Combine the two elbows of the straw into the faucet of the bicycle.

9. Cut one end of the straw in half and fix it with double-sided tape. This is how the bicycle "steel pipe" is connected.

10, which is the front wheel part of the bicycle. A toothpick can also be inserted in the middle of the straw to make the connection more firm.

1 1. Build a bicycle frame with two straws and stick the elbows with transparent glue to form a cushion.

12. Connect the car body and the rear wheel with a toothpick.

13, bend the chain cover of the bicycle with a straw. Fix it on the car. This bike is almost finished.

14. Bend the cotton swab into a pedal and connect it to the car body with a short straw, so that the pedal can rotate freely.

15, use a small piece of gauze, stick transparent glue on it, then fold it into a basket and fix it on the bike with a needle and thread.

Self-made cockroach trap

Preparation materials:

Plastic bottles, scissors

Production steps:

1. Cut the bottle with scissors.

2. Invert the cut bottle mouth on the bottle body. Fasten it carefully, or the cockroach will escape.

The next step is how to place a cockroach trap. First, we need to find garlic leaves or some strip-shaped plant leaves, and then we can coat one end of the strip-shaped plant leaves with sesame oil and sesame oil (attractive oil).

Then put the strip-shaped plant leaves coated with attractive oil on the bottle mouth.

Simple thermometer

A thermometer made of a thin film box

Let's try, put the air in a closed membrane box filled with water, and then cover it. Make a hole in the film box cover in advance, and then remove a straw. Suck the straw through your mouth and suck out a little water. Then use clay or plasticine to seal the gap where the straw is inserted, so that the thermometer is ready.

Use a cross screwdriver or a thick nail to open a hole in the middle of the membrane cover and insert a straw.

In order to facilitate observation, some painting pigments can be added to the water. In order to prevent air from leaking from the gap between the habit and the lid, the gap can be sealed with clay or plasticine.

Luminous galaxy

Let's start with an renderings.

First prepare materials, wooden bowls (this is the key) and acrylic pigments. In fact, I also used gouache paint, palette, toothpick, brush, crystal drops and luminous sand (used to decorate the center of the galaxy).

Second, start coloring with propylene black pigment.

Then wait for it to dry.

I paint the wooden bowl with white paint with a brush or toothpick. I drew a picture of twelve constellations on the wall of the wooden bowl, and then painted the bright spots with luminous pigments.

Then prepare crystal drops (measuring cups, beakers, glass rods, etc.). )

Drop crystal glue according to the ratio of 1: 2.5 (see crystal glue's instructions for details), and then pour it into a wooden bowl. After drying 12 hours, you can draw the Milky Way.

Then I began to draw the bank center.

Then paint it with crystal glue. When it dries, paint it again.

Finally, light a white star,

Then I painted it with luminous paint. I also added luminous sand in the center of the Milky Way to enhance the effect of the stars, and then I painted crystal glue.

Paint crystal glue for the last time.

Seal and dry with plastic wrap ~

When it is finally finished, close it ... >>

Question 7: How to make small handmade objects! 1. Put cartons (just use express cartons! Cut off the top and bottom skins and leave them around.

Method for make small hand-made magic box (including that above)

2. Set the height at the height you need (I set the size at 4 inches).

4 put on the "veil"

Cut out a piece of description paper, you need its hazy matte texture.

It's the same size as the bottom of a small paper box.

● Stick the instruction paper and the small paper box together with adhesive tape, as if covered with a layer of yarn.

5 reflective parts

● Cut out a piece of polyester film with a height slightly higher than that of the small paper box (all kinds of colored wrapping paper are also acceptable).

● Cut the cut long polyester into many small pieces of any width by touch ~ Because we need a sense of large and small, patchwork.

● Cut out a bunch of "reflection experts" …

6 water drop matrix

● Roll the cut polyester film into a small cylinder, and tie the edge tightly with adhesive tape to avoid deformation and scattering.

After the barrel-shaped film is made, put it in a small paper box.

● It is advisable to unite in various "small wooden barrels" and surrender without a fight. The top view looks like water droplets gathering together.

● After filling, cut off the protruding cartons of each keg.

Be bold, don't be stingy, let all the small cylinders be in the carton.

7 packaging completed

● Cut out a piece of transparent plastic with the same size as the upper part of the carton.

● Glue the transparent plastic sheet and the upper part of the small paper box with adhesive tape-the mini water cube is declared complete!

Expose the water cube to the light source!

● Put the mini water cube under different light sources and see the magic color it brings! Enjoy the worship eyes of MM!

The frame doesn't have to be square, try a more powerful shape!