Question

. Define matter. Name the different states of matter. .. How can you change the shape of solids? 3. Define water cycle.​

Answer 1

Answer:

Qno:1 :Matter is anything that has weight and takes up space.

states of matter are solid, liquids, or gases.

Qno:2: shapes of solid objects made from some materials can be changed by squashing,bending,twisting and stretching.

Qno:3: water cycle is the process of water moving around between the air and land. Or in more scientific terms: the water cycle is the process of water evaporating and condensing on planet Earth in a continuous process.

Answer 2

Three states of matter :-

1. Solids
2. Liquids
3. Gases

Solids -

• Solids have fixed shape and fixed volume.
• Solids have high melting and boiling points.
• The Diffusion of solids is very slow in Liquids.
• Solids have any number of surfaces.
• Solids do not flow.
• Solids have small imterparticle distance but strong imterparticle forces of attraction.

Liquids -

• Liquids have fixed volume but not fixed shape.
• Liquids have lower boiling points than solids.
• The diffusion is faster than solids.
• Liquids have only one upper level surface.
• Liquids possess higher compressibility than solids.
• Liquids can flow.
• Imterparticle distances larger than solids but smaller than those in gases whereas imterparticle forces weaker than those in solids but stronger than those in gas.

Gases -

• Gases have neither fixed shape nor fixed volume.
• Gases have low melting and boiling points.
• The diffusion of gases is the fastest.
• Gases have no surface.
• Gases possess highest compressibility.
• Gases can flow.
• Imterparticle distances are the largest while imterparticle forces of attraction are the weakest.

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• We can change the shape of the solids by applying pressure, compressing , and applying force nd pressure.

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• Water cycle - The whole processin which water evaporates and falls on the land as rain and later flows back into sea via rivers is known as the water cycle.

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Hope it helps you