20 questions
Anything that occupies space and has mass is called _______.
Matter exists in _______ states.
Identify the process.
Freezing
Evaporation
Melting
Condensation
Identify the process.
Melting
Condensation
Freezing
Evaporation
Identify the process.
Melting
Evaporation
Condensation
Freezing
Identify the process.
Melting
Condensation
Freezing
Evaporation
The particles in solids are ___________ packed.
loosely
tightly
very loosely
The particles of liquids are __________ packed.
tightly
loosely
very loosely
The particles of gases are __________ packed.
very loosely
loosely
tightly
The state of matter depends upon the _________ of particles in it.
____________ affects the movement of the particles in the matter.
cooling
heating
mixing
When two or more substances mix together completely, they form a ____________.
Water is a _____________ solvent.
Identify the soluble substances.
When two or more liquids do not mix together completely to form a solution, they are called ____________ liquids.
State true or false - The heavier liquid floats on the lighter liquid.
true
false
Insoluble substances can be separated by-
Filtration
Evaporation
Sedimentation and Decantation
Soluble substances can be separated by ________________ process.
The process in which insoluble substance or impurities settle down is called ______________.
Decantation
Sedimentation
The process in which a liquid is poured out gently after the settling down of insoluble substances or impurities is called _____________.
Sedimentation
Decantation