What am I? The second grade handwritten journal about the changing process of water. The relevant content is as follows:
Handwritten journal theme: What am I? The changing process of water
Contents of the handwritten journal:
1. Title: At the top of the handwritten journal, write the topic “What Am I and the Changing Process of Water” in large letters.
2. Three States of Water: Draw three icons or illustrations to represent the three states of water: liquid water (lake water, river water), solid water (ice cubes) and gaseous water (steam clouds). changing process of water: use text and illustrations in the handwritten journal to show the changing process of water between different states, for example:
Liquid water can become water solid, when the temperature is below freezing, water freezes into ice cubes
Solid water can transform.sea in liquid water. When ice cubes are exposed to heat, they melt into liquid water.
Liquid water can turn into carbonated water. When water is heated, it turns into steam and forms clouds.
Soda water can turn into liquid water. When steam encounters condensation, it condenses into small water droplets.
4. Water Cycle Process: Use diagrams or illustrations to show the water cycle process, including evaporation, cloud formation, precipitation, surface runoff, rivers, and lakes. Arrows can be used to indicate the direction of water flow.
5. Uses of water: Let students understand the uses of water in daily life, such as drinking water, bathing, agricultural irrigation, power generation and swimming.
6. Water conservation: emphasize the importancewater conservation and how we should save water resources, such as turning off taps, fixing leaks, not wasting water, etc.
7. Interesting Water Knowledge: Add interesting water knowledge, such as water density, water color, water taste, etc.
Illustration suggestions:
Draw illustrations of liquid water, solid water, and carbonated water in bright colors.
Use dynamic arrows in illustrations to represent the changing process and the circulation process of water.
Draw a dry map, then add clouds, rivers, lakes and raindrops in various locations to show the water cycle.
When writing this handwritten report, be sure to use simple, easy-to-understand language and illustrations so that second graders can understand and enjoy it. The objectivef of the handwritten journal is to convey basic knowledge about water through visuals and texts, while making students aware of the importance and conservation of water resources.
Think of a problem. One end of a dry towel is placed in a cup filled with water. As a result, the dry towel becomes wet. of some water has increased and the potential energy has increased, but potential energy is not generated from nothing. As a result, various forces in the capillary phenomenon perform work, which corresponds to the reduction of energy in the capillary.
Our hydroelectricity is generated by water evaporated by the sun in the sky, turning into rain and falling back to the earth to form streams. Ultimately, the sun is constantly generating energy. And the different energies in the corresponding capillaries are notCan produce continuously like the solehe. Even capillary action in plant transpiration is due to constant exposure to sunlight.
In short, when the capillary phenomenon occurs, the surface energy of the capillary is converted into the potential energy of the water. If you want to convert the potential energy of water into electrical energy, you must overcome the surface area. Energy (like blowing air into the capillary appropriately, just overcome the surface energy so the water can flow), energy is conserved.
We should think carefully about how to obtain potential energy from “water raised by capillary action”? You might say you can just use gravity, but remember that water is pulled by surface tension. We therefore still have to overcome these potential surface energies! The result is of course: a perpetual motion machine cannot be built!