Question

what states of water occur on earth?active reading 9 identify as you read, underline the three states of water that occur on earth:most of earths water is in liquid form. earth is the only planet in our solar system with abundant liquid water. gravity causes liquid water to flow downhill and to rest in low-lying areas. as a result, earth has rivers, lakes, and oceans. like other liquids, liquid water takes the shape of whatever contains it.liquid water can change into an invisible gas called water vapor, or it can freeze into solid ice or snow. like liquid water, water vapor and ice also have the chemical formula $\text{h}_2\text{o}$. so liquid water, water vapor, and ice are simply varieties, or states, of water. conditions on earth allow water to exist in these three different states. the three states of water can change into one another. when water changes state, it either takes up or releases energy.water vapor is a gas, so most water vapor is found in earths atmosphere. water vapor cannot be seen. clouds form when water vapor in the atmosphere condenses into liquid water droplets. like all gases, water vapor expands or contracts to fill available space.unlike other liquids, water expands when it freezes. molecules in liquid water, therefore, are closer together than are the molecules of solid water. in other words, there is more open space between the water molecules in ice. due to this fact, solid water, or ice, is less dense than liquid water. so ice floats on liquid water.when liquid water changes into an invisible gas it is called __________.what is the chemical formula of what? ________.what states of matter does water exist on earth?1. ________2. ________3. ________where is water vapor found on earth? ________when do clouds form?________why is water different than other liquids?__________

Explanation:

All answers are directly extracted from the provided reading text about water's states on Earth.

Answer:

1. When liquid water changes into an invisible gas it is called: water vapor
2. What is the chemical formula of water? $\text{H}_2\text{O}$
3. What states of matter does water exist on Earth?
4. Liquid water
5. Water vapor (gas)
6. Ice/snow (solid)
7. Where is water vapor found on Earth? Earth's atmosphere
8. When do clouds form? When water vapor in the atmosphere condenses into liquid water droplets.
9. Why is water different than other liquids? Water expands when it freezes, making solid ice less dense than liquid water so ice floats.