From “A Journey through States of Water,” I learned about the three states of water—solid, liquid, and gas. The chapter explains the water cycle, including evaporation, condensation, and precipitation, and their importance in nature.
Tiwari Academy Discussion Latest Questions
Aavi enjoys the rain and creates a poem. You can complete the poem and present it in your class. I wonder, oh! I got a wonder call, How does rain fall? Does it splash or stall? or I wonder, oh! ...
Condensation is crucial for returning evaporated water to Earth. When water vapor cools in the atmosphere, it transforms into liquid droplets, forming clouds. Eventually, these droplets combine and fall as precipitation, replenishing water sources.
Air containing water vapor rises in the atmosphere because it is less dense than surrounding dry air. As warm air rises, it cools, allowing water vapor to condense into clouds, influencing weather patterns.
Other examples of cooling effects include sweating, which cools the body through evaporation; the use of ice packs for injuries; and the cooling sensation of menthol in products like toothpaste and cough drops.
Clothes dry slowly on a rainy day due to high humidity levels. The air is saturated with moisture, reducing the rate of evaporation. This prevents water from evaporating efficiently from the fabric, causing slower drying.
If milk is spread out on a plate instead of water, evaporation would occur, but it would be slower. Milk contains fats and proteins that affect evaporation rates compared to pure water.
You can change the state of water by adjusting temperature and pressure. Heating water turns it into steam (gas), while cooling it forms ice (solid). Reducing pressure can also facilitate evaporation and freezing.
Oxygen and carbon dioxide are crucial gases for life. Oxygen is essential for respiration in living organisms, while carbon dioxide is a byproduct of respiration and is used by plants during photosynthesis for growth.
Air is all around us but does not hinder us from seeing each other. Whereas, if a wooden door comes in between, we cannot see each other. It is because air is “transparent” and the wooden door is “opaque”.