The kindergarten science activity “The Secret of Water” is designed to enable children to know how to protect water and to be environmentally aware to save water. Let me take a look at it soon.
Kindergarten scientific activity “The secret of water”
Objectives of the activity:
1. In Try activities to learn about the properties of water.
2. Gain a preliminary understanding of the relationship between humans and water.
Preparing for the activity:
1. Two goldfish aquariums (one aquarium contains water and one goldfish in the water , and an aquarium contains rice (there are plastic colored balls inside), a glass of water, a portion of milk, sugar, salt, sand, pebbles and red beans for each group. . Two bottles of Eight Treasures Porridge and a towel.
2. Each group has small plastic baskets, plastic bags with holes and other small containers for water play, half a glass of water and a towel for each person.
Activity Process:
1. Do you kids like watching magic? (Like) Well, today the teacher is here to give you a magic trick, so watch closely!
(1) Show a glass of water and an empty rice pudding bottle, pour the water from the glass into the bottle and ask the children to guess whether the water can be poured into the cup ? (The result was that the water was poured back)
(2) Show another bottle of Eight Treasures Porridge and ask the children to see if the two bottles are the same? (It's the same) Pour a glass of water into another bottle and ask the children to guess if they can pour it back this time? (Yes) As a result, the water could not be poured. THEteacher made the water disappear?
(3) Children, guess where the water went? It's a secret that I will tell you later.
2. In fact, water has many secrets. Do you want to know? So let’s explore the secrets of water together.
(1) Collective exploration
(1) Water has no color.
The children guess what is in the water and the rice.
Teacher: Children, look at these two cups. One cup contains water and the other contains rice. Do you know what’s in water and rice? (Caizhu) Teacher: How did you know? (Younger: Some said I saw it; some said I saw it through the water)
Teacher: Look what's in the rice. (Younger: Some said there was only rice; some said there was nothing; some said they didn't know) Then I asked a child to touch. Is there anything in the rice? What is therethere? (The teacher asked a child to take a plastic colored ball out of the rice)
Why do you immediately see the colored balls in the water, but not what is in the rice ?
Teacher Summary: It turns out that water is colorless and transparent, so we can see objects in water; The rice is opaque, so we can't see the inside.s things.
(2) Water has no taste.
Show the vinegar and ask the children to smell it and tell them what they smell. Smell the water again.
Tell me, does the water smell? Knowing that water has no taste,
Then add sugar to the water and let the children taste it. Based on the children's personal experience, I made a summary: water has no taste.
(2) Group Exploration Activities
Next, I want the children to play games with the water babies, then continue to explore the secrets of the wateru by myself, okay?
(1) Water catching game, an experience to understand that water has no shape and that it flows.
Now ask the children to roll up their sleeves and collect the water in the basin. with their hands, can we catch water? How to retain water? (Ask the children to take out the container of water from under the table) and see what the filled water looks like? Tell me, does water have a shape? Then the children poured the water into the basin again. What did you find? (Water is fluid)
(2) Dissolution Experiment
Teacher: Now the teacher wants the children to do an experiment to explore the secret of water again water. Do you agree ? (Show a paper plate with various experimental materials) Ask the children to take a cup of water from the basin, then take some items from sugar, salt, corn kernels, mung beans, etc. on the tableand put them in your water, then stir gently and take a look. What do you find?
Professor: Who will tell you what you discovered in the experiment?
Teacher: The children are watching very carefully.
Teacher Summary: Sugar and salt disappear when put in water. These elements are dissolved by water. (Have the children put the water collection tool back under the table)
3. Find a way to clean the water on the table (use a sponge to absorb the water, use a cloth to absorb the water) to understand the secret of magic.
4. Guide children to understand the uses of water and how to save and protect water.
(1) It turns out that water has so many secrets. Ask the children to face the teacher. The teacher still has questions to test you. Children, do you know what water is used for?
Children: can swimer, wash your hands, generate electricity, water flowers, drink, etc. (Teacher summarizes the uses of water: washing hands, bathing, watering flowers, swimming, irrigating, generating electricity, drinking)
Teacher: Water has so much of functions, and we cannot live without water at all times, so we have to want. Cherish every drop of water, take care of the environment and do not pollute water sources.
5. End: The children help clean up and pour the water they played with into buckets to flush the toilet and water the flowers. (Play music, a song to save water)
Water expires quickly when put in a bottle, so why doesn't it expire under earth ?
Yes, no problem. This is how I use it at home, but I have to put an isolation device in the bottle. You can buy it in stores that sell dispensersrs of water. You can boil it, but be sure to drink it immediately. If the water remains hot, it may boil several times and turn into boiling water.
The. reason why water does not expire underground There are two reasons for expiration in bottles The first reason is that the material of the bottle will change, which will cause water to deteriorate in nature and not does not easily produce other substances, therefore water. in nature it is possible to “never expire”.
Many, many years ago, there was a vast ocean of liquid water on Earth, and the water we use today actually comes from ocean water original, although we now have many methods to do this. produce water, but the water we have used from ancient times to the present is actually very ancient water. Because water itself has a natural cycle process, so after so muchyears of circulation, the water we use has actually changed nothing. .
Water in nature can actually expire. For example, scientists have discovered groundwater from billions of years ago. This water contains a high amount of metals and should not be drunk by humans. But if it is water flowing in nature, it will never run out, because the water itself can “self-clean”. In addition, water will hardly produce other substances and will not undergo essential changes during the flow process, so flowing water will. never expires. The water is safe to drink no matter how much time has passed.
So why does the water in the bottle go bad? In fact, it is not the water that has deteriorated, but the bottle that has deteriorated, as the materials of most bottles will deteriorate. During the degradation process, many other substances will be producedin water, causing it to deteriorate. But if the material of the bottle does not deteriorate and the bottle is very well sealed and sterilized, then the water will not deteriorate under such circumstances.
To summarize, water that flows in nature will never expire, while water that does not flow will become bad. The water in the bottle will deteriorate because the material of the bottle has changed. Being sealed, sterilized and does not degrade, the water in the bottle will not expire.