How can parents explain to their children how fish breathe?

Parents take their children to understand how fish breathe, first of all, it is best to buy a small goldfish, and in the process of observing the goldfish swimming with the child, describe to the child that the fish obtains oxygen in the water through the gills.

Parents can take their children to stand in front of the fish tank and observe the movements of the fish when they swim, so that the children can find that the fish's mouth is constantly opening and closing, and then there are two semi-circular "lids" behind the fish. You can then tell your child that the fish breathe by swallowing water from the tank through their mouths and getting oxygen from the water.

At this time, the child must be very puzzled, this way is no different from humans, why can't humans breathe in water, and fish can't breathe in our environment. At this time, we need to instill in our children another concept, which is that oxygen can be dissolved in water.

The child may not be able to understand this distance, so we can use the analogy of carbonated drinks or sugars that can be dissolved in water, and tell him that there are many components in water, including oxygen, which can also be "dissolved" by water.

Next, we can explain to the lid that the "lid" of the fish's head is the gills. When eating fish, we can pick out the head of the fish separately and explain to the child that there are gills under the lid. Because the fish needs the raw material that can meet its breathing, that is, the air we need, not drinking water, the role of the gills is to separate oxygen and water through the delicate structure inside, so that the oxygen enters the body, and the remaining water is returned to the fish tank.

For example, when the nose breathes air, the air enters the body, and the large particles of dust in the air are filtered out by the nasal cavity and thrown into the trash through the snot.

After the child understands how the fish breathe, encourage him to take good care of the goldfish he brings home, and tell him that the water in the fish tank will also be consumed by the fish, so if you want the fish to live for a long time, you must regularly change the water for the fish and keep the water in the fish tank fresh and clean. In this way, children not only increase their knowledge, but also cultivate their sense of responsibility.

Answers and **invasion and deletion.

You can buy a goldfish for your child and put it in the water, and then the fish will spit bubbles, then you can tell the child that when the fish spits bubbles, it is when he breathes, and you can't keep looking at him, otherwise the fish will be shy.

Parents should go and learn about fish, normal. Breathing state how to breathe in the water, and then go to the child to tell the fish how to breathe. Tell the child, so use the fish sieve to breathe.

Parents should tell their children that fish use their gills to breathe and then surface for ventilation.

How can parents explain to their children how fish breathe? I think any parent with a little bit of a science culture can explain it clearly.

You can tell your child that fish breathe with their gills, because that's the case.

You can use scientific knowledge to explain to your child, so that you can spread the knowledge to your child.