Grade 4: PHYSICAL AND CHEMICAL CHANGES

Which of the following is NOT an evidence of chemical change taking place in matter?

• formation of bubbles

• production of light

• change in odor

• change in state

Tags

NGSS.MS-PS1-2

Which of these indicates that gas is produced due to chemical change?

• formation of solid precipitates

• change in color

• formation of bubbles

• change in texture

Tags

NGSS.MS-PS1-2

What do you call the process wherein a solid matter changes to gaseous state?

(a)  

Tags

NGSS.MS-PS1-4

Which of these is an example of deposition?

• drying fish outside

• melting of ice in the Polar region

• formation of snowflakes

• formation of fog

The process wherein gaseous matter changes to liquid is called (a)   .

Tags

NGSS.MS-PS1-4

The following are examples of sublimation EXCEPT __________.

• moth balls in the closet

• smoke from dry ice

• heating solid iodine

• solidification of oil during cold weather

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What phase change turns liquid water into water vapor?

(a)  

Tags

NGSS.MS-PS1-4

The following are examples of physical change EXCEPT _______.

• spoilage of milk

• slicing a piece of meat

• pounding rice grains

• chopping a piece of wood

When gas directly changed into solid, the process is called (a)   .

Phase changes in matter are reversible processes.

• TRUE

• FALSE

Tags

NGSS.MS-PS1-4