Who has a report on the rat woman s experiments?

1. Experimental report on the living environment of the student ** rat woman.

Experiment content: What is the living environment of the rat woman related to?

The purpose of the experiment: to let students know what is related to the living environment of the rat woman through the experimentExperimental equipment: several rat women, two petri dishes, and some damp soil Experimental steps:

Divide the rat woman into two equal parts and place them in Petri dish A and Petri dish B respectively, where Petri dish A is put in an appropriate amount of moist soil and placed in a cool place, and Petri dish B is not put in moist soil and placed in a sunny place.

Experimental Record: The rat woman placed in the shade grew normally, and the rat woman placed in the sun gradually diedExperimental Results: The living environment of the rat woman was related to the humidity and sun exposure.

Light has an effect on the distribution of rat women, according to the experiment of the effect of light on rat women, the dark side has more rat women, and the strong light side has fewer rat women, so it is concluded that rat women like dark environments and have a certain resistance to light.

**Experimental process and results of the effect of light on the life of rat women:

1. The purpose of the experiment is to assume that it is a positive or negative answer to the question, and the hypothesis is that light has an effect on the distribution of rat women, or light has no effect on the distribution of rat women

2. The condition of the control experiment is the only variable of the experiment Because of the "influence of light on the distribution of the rat woman", the only variable in the experiment is light When designing the experiment, the rat woman should be provided with two environments, dark and bright, so that it can be controlled

3. Put 10 rat women in each experimental device, count the number of rat women in bright and dark soil every minute, count 10 times, calculate the average value of 10 statistics, reduce the error caused by chance, and improve the accuracy of the experiment Only 1 rat woman should be used for experiments It is not possible to use 10 rat women, because this can reduce the error caused by the influence of other factors If the collected rat women are sick, or affected by other abiotic factors, and are in a special growth period, the experimental conclusions will be wrong. Therefore, if you put 1 rat woman on each side of the iron plate, you can not draw an accurate conclusion, because the number of 1 rat woman is too small, and the experimental results are accidental

4. It was concluded that light had an effect on the distribution of rat women

5. If "the influence of humidity on the life of the rat woman", then the variable in the experiment is humidity, and the rat woman needs to be provided with two environments: dry and wet

The conditions of the experiment were affected by the size of the rat woman.

The only variable in the experiment is the only variable of the experiment, because of the "influence of light on the life of the rat woman", the only variable in the experiment is "light", except for the different "light" conditions, other conditions such as the number of rat women, temperature, water, nutrition, etc. should be the same and suitable.

Therefore, in the experiment on the influence of light on the life of the rat woman, it is guaranteed that the difference in the experimental results is only caused by the difference in illumination: "only one variable is set in the experiment".

A controlled trial refers to a test in which a certain test is generally conducted to clarify the effect of a certain factor on a subject and the effect or significance of the treatment, except for the research factor or operational treatment required by the test, the other factors are consistent, and the test results are compared.

Usually, a controlled experiment is divided into an experimental group and a control group. The experimental group is the group of objects that are treated with experimental variables; The control group, also known as the control group, is a group of subjects who do not accept the treatment of experimental variables for the experimental hypothesis, and as for which is the experimental group and which is the control group, it is generally decided randomly.

Rat Woman ** process.

1. Raise the question: when light will affect the life of the rat woman, it is the control, and see how the light affects the life of the rat woman through the comparison Second, make a hypothesis: the rat woman is suitable for living in a dark environment, and light will affect the life of the rat woman.

3. Make a plan: 1. Principle: Rats are randomly distributed in the same environment such as humidity and low temperature, and are in the dark while there is light, and the light side is dark 2. Materials and utensils:

Each group had 10 rat women. Wet soil. Books or cartons.

3. Experimental procedure: Put the rat woman into one end of the carton, and have light and no light on one side, (or put all 10 rat women in the ** of the device) and let stand for 2 minutes. The number of rat women in bright and dark places is counted once at a time, three times.

Fourth, the implementation plan: according to the above experimental plan to do experiments. During the experiment, it is necessary to observe carefully and record carefully.

Recorded in the following table: Environment Number 123 average 7 6 8 in light 3 4 2 2 in no light 5: Conclusion:

Light affects the life of the rat woman. Six: Expression and Communication:

The rat woman is suitable for living in a dark environment, and the light will affect the life of the rat woman.

The experiment was conducted in a semi-dark and half-sunny tray, and the purpose was to experiment with the habits of rat women, and about 10 experiments were conducted.

Finally, the rat woman, also known as tide worm and watermelon worm, often hides in dark and damp places, such as under stones, at the bottom of flower pots, and in the corners where mopping cloths are placed.

The soil is overly moist due to more moisture in the environment, and the soil is too dry with less moisture, and the rat woman prefers the soil with medium moisture to survive. In addition, the rat woman is suitable for living in a dark environment, and the light will affect the life of the rat woman.

So both light and water can affect the rat woman. Conclusion: The Rat Woman likes to live in a dark environment.

Rat women prefer damp and shady places.

Rat women prefer dark, damp environments, and generally inhabit under rotten trees, rotten leaves, stones, etc., and sometimes appear in houses (thatched houses) and courtyards. It is normal for rat women to live between 20---25 degrees. If the indoor and outdoor temperature is about 25 degrees, it can be found in the front and back of the house, under the rubble, in the basin, and in the altar; If the temperature is below 25 degrees Celsius, you need to choose a warm flower cellar, next to the sewer in the courtyard, or under the kitchen floor tiles in bungalow conditions.

When we collected in the school garden, we found that the number of rat women was smaller, and the individuals were smaller, with some small individuals being the mainstay. It can be collected under the bottom of pots, but the number is small, if the pot is placed on the concrete floor, the number will be very small, and the amount of excessive water will be greatly reduced. For the convenience of collection, we found after some efforts that if the Taiwanese grass is shoveled up and covered on the lawn next to the wall (can be covered with two to three layers), do not water for a few days, and after the grass is dry, water a small amount of water for about three days, as long as it is relatively wet.

If you start collecting in about a month, you can get a larger number of rat women. Moreover, the harvesting process is very convenient, as long as the turf is removed. During the collection of rat women, it must be carefully protected, and after collection, the container should be filled with some wet soil and pay attention to ventilation.

Wet soil is best rich in organic matter, the color is best black, at the same time you can put a few rotten leaves or some small roots of plants, you can also dig a pit in the ground in a dark corner when collecting, put in a plastic cup, the mouth of the cup is flush with the ground, put a little fruit in the cup, and a large number of rat women can be lured overnight.

Middle School Biology Experiment, **The Effect of Light on the Life of Rats.

Method steps: 1. Put 10 wet soil and 10 rat women of the same weight in the three iron boxes, and cover them with glass plates (to prevent them from running out).

2. Put the three iron boxes in the refrigerator and two incubators.

3. Ensure that the light of the incubator and refrigerator is the same.

4. Place it for 10 minutes to observe the behavior of rat women in different positions

Location: Refrigerator. Incubator 1 (30 degrees Celsius).

Incubator 2 (60 degrees Celsius).

Result of the test on the condition of the rat woman: in the refrigerator: basically dead.

Incubator 1: Normal.

Incubator 2: Basically dead light.

That's pretty much it.

Is yours a biological experiment? It just so happens that I'm in the third year of high school, and I don't know if this will work, and the assumption is: light will affect the life of the rat woman (or not, it doesn't matter, it's a hypothesis anyway).

Provide two environments with light and without light respectively Other conditions are the sameThe conclusion is: according to the experimental results, if it is, it is written consistently, and if it is not, it is written inconsistently. Then write the corresponding conclusions based on the assumptions.

That's probably it, your experiment is still relatively simple, after all, many of them have been written for you, like the experimental questions we do, they are basically empty, and you have to write them yourself, the key is to control the variables.

Hope it helps.

1. Light has an impact on the life of the rat woman.

2, there is light, there is no light, the same.

3. Consistent, light is conducive to the life of the rat woman.

Hypothesis: Light affects the life of a rat woman.

Make a plan: The experimental setup provides both bright and dark environments for the rat woman, and other conditions such as humidity and temperature are the same.

Conclusion: Our group's conclusions are consistent with the hypothesis that light affects the life of the rat woman.

I've just finished my experiment, and it should work!

I like it, the rat woman is also called a tide insect.

Suppose the rat woman likes to be wet.

Take a box, fill it with dry soil, pour water on it while drying it, and then put 10 rat women in ** and cover it. Observe the whereabouts of the rat woman every 2 minutes. Recording.

Not necessarily, I experimented.