Question 1: What to do if there is a power outage when raising tropical fish. Method 1: During a power outage, you can put hot water in a Coke bottle or hot water bottle and then put it in the tank. but remember to always pay attention to changes in water temperature;
Method 2: Buy a dry cell air pump or rent an oxygen cylinder for oxygenation to avoid hypoxia caused by sudden changes in water quality
p>Method 3: Divide a space in the aquarium with a board and slowly fill it with boiling water, but be careful not to hurt the fish and to avoid changes in water temperature.
Method 4: Wrap the fish tank with a quilt or insulation board to ensure the temperature of the hot water filled
Method five: of course it's the battery, but that doesn't will not work if you are facing a llong power outage, unless there is a cheap model that can allow you to recharge the battery in time
Method six: Transporting the fish to other aquarists' homes (blackout long-term power supply)
Power outage reminder:
Regardless of the method used, it is only a temporary measure and cannot replace the 'electricity. So there are some things you need to pay attention to in the event of a power outage.
(1): Before a power outage, do not feed too much without your knowledge. Overfeeding itself may not be a good thing for the arowana. Second, if there is a sudden power outage, so will overcharging. This results in insufficient oxygen supply to the water;
(2): In the event of a power outage, stop feeding immediately. There is no problem if the arowana stops eating for a few days, but if food residueiture are the cause. water quality will deteriorate, there will be many problems ahead;
(3): After the power is restored, immediately replace the water in the tank, change a quarter first, then clean the white cotton, replenish the nitrifying bacteria appropriately, and restore a system nitrification, but it is best to stop eating for three days at this time! (This situation is suitable for a longer power outage!)
Question 2: What should I do in the event of a power outage at my home where I raise fish tropical? can prepare an oxygenator yourself. There is a very cheap one with a battery installed. As for the temperature, if you don't want to spend a lot of money, just cover the aquarium with a thicker cloth.
Question 3: What should I do if there is a power outage when raising tropical fish and ornamental fish? East-Did he die of cold or did he die from lack of filtration or oxygenation? Find the cause and treat it symptomatically.
In case of hypoxia: You can use the cold water method that you used at home when you were a child: take a little water and pour it slowly into the basin. aquarium to increase oxygen through contact between water and air
Heating methods: use a bottle of clean mineral water, pour boiling water, then place it in the aquarium to heat it by heat transfer.
You can also change the water on the one hand. Remove impurities from the bathtub. On the other hand, increase the water temperature of the aquarium by changing the water temperature. be diluted with boiling water. Hope this helps?
Question 4: What should I do in the event of a power outage if the aquarium is circulating water 24 hours a day? If the power outage lastsgiven time, it won't be a problem for your tank to be so big, and it won't die from suffocation.
If the power outage lasts a long time, open it. cylinder cover after power failure. Your tank is so big and it will be nice to lift two arhats, just like that. Oxygen can last about 3-5 hours. Pay attention to observation if the water quality is not very good before. If there is a power outage, you must pay attention to observation. Once you find that the fish has raised its head, go to the water surface to breathe, and immediately
Change 1/5 of the water and open. the cylinder cover. Do not feed during power outage. Even if he is hungry, do not feed him because digestion of food requires more oxygen. If the power outage lasts a long time, change 1/10 of the water approximately every 6 hours. Water, if the water is dried in advance, if it is not dried well, you mustrun clean water
If there are aquatic plants in the tank and there is a power outage during the day, try to give the plants enough light, because they will produce oxygen.
If there is a power outage at night, you must either remove aquatic plants or catch fish. fish, you should first put the aquarium water into a fish container and then invite the fish inside. , do not use external water after a while, add some dried water into the container instead of changing the water
If there are no aquatic plants and the fish is hypoxic, simply change the water according to the method above
The reason for removing the plants aquatics is that in the dark, the aquatics. plants will release carbon dioxide and compete with fish for oxygen.
Question 5: What should I do in case ofpower outage when raising tropical fish? so prepare for a rainy day, Niu~~~~~~
It is unrealistic to build a generator for an aquarium, so what should I do? I have no choice but to find ways to keep him warm. There are many ways, some cost money and some cost nothing. Let me briefly mention a few of them.
According to you, from 9 o'clock to 6 o'clock, a 9-hour power outage, the water temperature suitable for tropical fish is generally 28 to 18 degrees, and some can reach 32 degrees . At 5 p.m., the water temperature will be adjusted to 30 degrees, so the power will be cut off once the water temperature reaches this temperature. Next, wrap the aquarium with foam boards around it. The goal is of course to maintain it. warm and reduce the rate of temperature drop. Then think aboute cover, otherwise the evaporation of the hot steam will cause the temperature to drop suddenly. Of course, you still have to leave the necessary space. Otherwise, the temperature is guaranteed, but. you die from lack of oxygen, which is not worth the gain. You can also use quilts or any other material that can keep you warm.
You can also modify your charcoal smoke pipe and design the pipe in a U shape. Remember that it must not leak, otherwise it would be tragic and carbon dioxide would enter the smoke pipe. 'aquarium. tropical fish are directly poisoned, humans will also be in danger. The principle is to use the heat of the gas stove to heat and preserve the aquarium, so that it can pass the winter safely, and the electric heating rod can be saved, haha.
As long as you work hard, there will always be a way. I'm dizzy, I'm so hot and sweatye, I need to turn on the air conditioner. Haha, think about it.
Question 6: What should I do if the aquarium heating rod loses power? This is the most terrifying thing about fish farming in winter! I too often worry about this problem! I also considered some methods, but it's not practical to use a generator, and I can't buy one with such high power using a blackout treasure! If your aquarium is large enough, a short power outage should not pose a threat to your fish! You can eliminate the drop in water temperature by increasing the internal temperature! If this takes a long time, it is recommended to use an auxiliary heater to maintain the temperature in the lower tank! Use a hose to extract a small portion of the water from the tank, then heat it with a fire source. The temperature can bee high enough! Then use a relatively thin hose to slowly pump the water into the tank! Remember to go slow! Otherwise, the consequences would be disastrous! At the appropriate time, you can slowly stir the water with your hands or other things! Do not let hot water float into the middle and upper layers! So back and forth! You can survive for a relatively long time! ! !
Question 7: There is a power outage and there is no oxygen in the aquarium. What should I do if the fish is about to die? You can use the following methods to deal with it:
1. Use a container to continually collect water and rinse it to increase dissolved oxygen
2. Change a large amount of water.
3. Purchase and use a dry battery powered air pump
4. Inflate the pump
5. Inflate the oxygen cylinder (bag)
< p> Of a maGenerally, a 24-hour power outage will cause hypoxia. Dead fish indicate that stocking density has seriously exceeded the norm. It is recommended to reduce storage density in the future.
Question 8: What should I do if there is a power outage in the aquarium? Use a Bluefish USB DC water pump. Your power bank can be used as a backup power supply. food. You are not afraid of power outages.
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. Question 9: What should I do if there is a power outage in winter when raising tropical fish? Don't worry, you can use plastic or glass bottles like those used for drinking mineral water or beverages. screw on the lid and place them in the aquarium to keep them warm. This is a common technique used by people selling tropical fish outdoors in the winter. he.
Question 10: What should I do if the aquarium experiences a power outage in winter? If you know in advance that there will be a power outage, take time off work, purchase storage bags, and prepare a dry cell air pump. After a power outage, pour boiling water into a preservation bag and tie it tightly, put it in a cylinder to heat it, and use an air pump to drive the water flow to evenly distribute the temperature. Pay attention to observation and make timely adjustments.
Science test test of the first volume of sixth grade
1 Moser lamp
Alfred Moser, a technician in Brazil, invented a technology of daytime running lights that use. no electricity and only requires a plastic bottle filled with water and a little bleach.
Simply add two small capfuls of bleach to prevent algae from growingin the water in the bottle. Of course, a bottle that can use bleach will give better results.
2.GravityLight Gravity Lamp
Gravity LED lamp relies onThe energy is converted into each other to obtain electrical energy.
The chemical energy of the human body is converted into the gravitational potential energy of the object: the operator takes a few seconds to lift the 12 kg sandbag to a certain height by pulling the chain at balls. ?
The gravitational potential energy of the object is converted into the kinetic energy of the object: Once the operator lets go, the sandbag will slowly fall at a speed of 1 mm per second under the action of gravity. ?
The kinetic energy of the object is converted into electrical energy: when the sandbag goes down, the transmission device drives the generator to generate electricity, and the gravitational light begins to shine. LWhen the sandbag reaches its lowest point, the gravitational light stops working.
3.?Living lamps?
The secret of the “unplugged” living lamps lies in the water, where there are fluorescent diatoms collected by Pani Jurek. This algae has its own biological clock, so it does not emit light during the day and only emits light at night.
To shine, these diatoms need to carry out photosynthesis, so during the day they need sunlight and various trace elements present in sea water. You do not need No need to worry too much about maintenance, this “light” can be used for six to nine months.
Extension Information:
The principle of a light bulb which lights up by touching it without Charge: p>
The human body has electricitystatic, which can continuously light low-voltage LED lights, but only slightly. If you are talking about very high light intensity when touched with your hand, it may be an emergency light. It has a built-in battery, which makes the lamp very heavy. In fact, it still needs to be charged. The static electricity on your hands can trigger the amplifier circuit and the lamp can be turned on via the integrated circuit.
How much CO2 is emitted each time a plastic bottle is used
Question 2 of the sixth grade science final test of the first semester
Class: Name:
1. True or false questions (mark “√” if correct, “×” if incorrect)
1. Cooking rice with a rice cooker converts electrical energy into thermal energy. ( )
2. Even if the shape of the same material changes, its bending strength will not change. ( )
3. The sphere is arched throughoutes the directions, which makes it stronger than any other shape. ( )
4. The electricity in the battery is converted from chemical energy. ( )
5. The only form of energy produced by the electric lamp is light. ( )
6. All kinds of animals like to live in a certain environment, and different animals have different reactions to environmental needs. ( )
7. Objects that are small at the top and large at the bottom, heavy at the top and light at the bottom are not easy to tip over. ( )
8. As shown on the right, using chopsticks is a labor-saving lever. ( ) Photo of question 8
9 When using a screwdriver, your hand should be held by the handle to save effort. ( )
10. Increasing the number of movable pulleys on the pulley block can save more effort. ( )
11. When the arc is compressed, it produces an outward thrust. If heWithstands this force, the bow can support a lot of weight. This is the secret of the bow's lift. ( )
12. Sound and light cannot make objects move, so they have no energy. ( )
13. We have observed and studied the speeds of variable speed bicycles in class. When the pedal speeds of the bicycle drive the largest drive wheel sprocket, the speed of the bicycle is the slowest. ( )
2. Choice: (fill in the letters of the correct answer in parentheses)
1. During the process of repeatedly bending the wire ( )
< p>A .Chemical energy is converted into thermal energy B. Thermal energy is converted into kinetic energy C. Kinetic energy is converted into thermal energy2 Which of the following statements is incorrect ( )
A. Balance is an application of leverage B. Iron tongs used for making fire can save labor by clamping firewood in the poêle
C. Using a vise to clamp the wire can save effort.
3. Which of the following statements is correct ( )
A. Using a fixed pulley can change the direction of force
B. Using a fixed pulley can save half the force
C. Using a moving pulley can change the direction of the force
4 The energy that humans and animals obtain from food belongs to ().
A. Light energy B. chemical energy c. Electrical energy
5. Which of the following statements is correct ( )
A. Use a coil and compass to check if the used battery still has power
B. Straight wires can produce magnetism C. Coil can produce magnetism
6. The method for changing the south and north poles of the electromagnet is ( )
A. Increase the number of connected batteries B. Change the direction of the cap de the nail and the tip of the nail
C. Changing the direction of winding of the wire
7 Biologists have discovered an interesting phenomenon: for the same animal, the colder the place, the more the nose, ears, paws and other organs exposed outside are ().
A. Same b. The biggest C． The smaller it is
8. Plants with relatively broad leaves are suitable for life in environments ( ).
A. Cold and dry b. It's hot and humid. Cold and damp
9. We have learned the "Secret of the Wheel and Axle", and I will answer the following questions.
(1) In the picture on the right, the large circle is called the wheel and the small circle is called the axle. When the force point is placed on the wheel and the resistance object on the shaft is pulled up, it can ( ). Question (1) Image
A. Without effort B. Without effort C. Neither without effort nor without effort
(2) In all three imagess following, the tool to apply the wheel axle is ( ).
(3) In the right picture, the person on the left only needs to twist the screwdriver slightly, but the person on the right can't stop twisting it, even with a great strength. The reason is ( ).
A. The screwdriver is a wheel axle tool and the handle is much thicker than the blade
B. The left side is wood and the right side is wood. of steel
C. The left handle There are patterns, and the steel bar on the right is slippery
10. I did the activities of “build a tall tower and make a tower. paper bridge" in class. I know the following activities.
(1) When building a tall tower as shown in figure (1), why are large plastic bottles used in the lower part? Also add sand ( )
A. Beautiful B. Stable C. Prevent people's breath from blowing on plastic bottles.(2) We did the "arch without external thrust" activity in class. As in figure a, two people bend the bamboo pole and use a lot of force to squeeze the bamboo's thrust outward. As shown in Figure b, the two people do not use any force, and the bamboo bow is also bent. This is an arc without external thrust. The reason why there is no extrapolation is ( ).
A. There is an object pulling on the arched foot in the horizontal direction B. It was a person who used their leg to hold the arched foot C. The arch of the foot may have been broken
(3) The paper made below The most load-bearing part of the bridge is ( ).
11. Observe the characteristics of animal and plant species in class. I know the following activities.
(1) As shown in the picture below, animal bones may look different, but one feature is the same, namely ( ).
A. VSoccyx B. Skull C. Vertebrae
(2) Which of the plants below is not a flowering plant ( ).
(3) There are many meanings to the protection of biological diversity, and the following ( ) is one of them.
A. Creates a complex environment unfavorable for the growth of organisms B. Has a good effect on human survival
C. Makes humans eat more
3. Fill out the form on the first website of the new educational standard
Fill in the following plants in the corresponding categories: peach, metasequoia, mushroom, water hyacinth, pine, setaria, chrysanthemum, black fungus . , cedar, lotus, kelp, bayberry.
Flowering seed type Aquatic type Non-flowering type
4. Complete questions
1 In the image below (1) S1, S2 and S3 are fixed pulleys or A moving pulley? (2) Briefly write the function of this mitten. (3) If the spring scale reads 2.9 N, how many Newtons should the traction force F be?
(1) Answer: S1 is S2 is
S3 is
(2) Answer:
(3) The force of traction F should Yes ( ) N.
2. Our goal is to use the energy of nature in the service of humanity.
Ocean tides contain a lot of energy. The cooking process after converting tidal energy is described as follows: build a dam at the seaside, put sea water into the dam when the tide rises, release water. when the tide goes out, and use the tide to turn the tide up. The difference in water level between the falling water causes the hydroelectric generator to produce electricity, which is used to cook the rice cooker. Question: ① The seaside dam is an energy converter, which converts ( ) energy into ( ) energy; ② The hydroelectric generator is an energy converter, which converts ( ) energy into ( ) energy; ③ The kitchenrice maker It is an energy; converter which converts ( ) energy into ( ) energy.
3. The picture on the right is an arch-type steel cable bridge, C is the steel girder, and D is all the steel cables.
(1) The functions of A and B are:
The functions of C are:
The functions of D are:
>(2) We know that this arch-type steel cable bridge can allow cars weighing up to 10 tonnes to pass. It must now allow cars weighing more than 10 tonnes to pass. Which problems do you think should be solved in A, B, C. and D? Please tell me briefly.
It is difficult to answer this question because the sources of electricity are different. For example, solar power generation, hydroelectric power generation, and even hand-cranked power generation can all be considered zero emissions.
Coal-fired power plants and oil-fired generatorsnaturally emit emissions, but this depends on the material burning, so we cannot tell how much carbon dioxide is emitted.