Matter in our surrounding

Which of the following is most suitable for summer?

• Cotton

• Nylon

• Polyester

• Silk

On heating, a solid is converted to liquid. This change is called

• Melting

• Fusion

• Diffusion

• Freezing

Tags

NGSS.MS-PS1-4

Seema visited a Natural Gas Compressing Unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions

• Low temperature, low pressure

• High temperature, low pressure

• Low temperature, high pressure

• High temperature, high pressure

Tags

NGSS.MS-PS1-4

The property to flow is unique to fluids. Which one of the following statements is correct?

• Only gases behave like fluids

• Gases and solids behave like fluids

• Gases and liquids behave like fluids

• Only liquids are fluids

Which of the following is not a characteristic of matter?

• Matter is made up of extremely small particles

• There is no space between particles of matter

• The particles of matter are continuously moving

• The particles of matter attract each other.

During summer, water kept in earthen pot becomes cool due to phenomenon of

• Diffusion

• Transpiration

• Distillation

• Evaporation

Which of the following is correct order of forces of attraction?

• Water > Air > Sand

• Air > Sugar > Oil

• Air < Water < Sugar

• Salt > Air > Juice

solidified carbon dioxide is an example of which process

• sublimation

• fusion

• evaporation

• condensation

Tags

NGSS.MS-PS1-4

when water changes its state from liquid to gas when in sunlight this is called

• condensation

• vapourisation

• evaporation

• boiling

Tags

NGSS.MS-ESS2-4

the magnitude of temperature at which matter changes its state from liquid to gas is called ________.

Tags

NGSS.MS-PS1-4