SEPARATION OF SUBSTANCES

Substances that contain only one kind of constituent paticles are called
1. pure
2. mixed
3. impure
4. unique
The unwanted particles in a substance are known as
1. weeds
2. stones
3. impurities
4. mixture
The mixture in which the particles of substances cannot be seen are called
1. impure
2. solution
3. homogeneous
4. heterogeneous
The process of separating lighter particles of suspend solid from a liquid is called
1. churning
2. filteration
3. sedimentation
4. loading
The process of obtaining crystals from impure sample is called
1. condensation
2. decantation
3. crystallisation
4. evaporation
process of removing water from a mixture on heating is called
1. condensation
2. evaporation
3. filtration
4. threshing
The method of separating small particles of dirt from grains is called
1. churning
2. handpicking
3. sedimentation
4. filtration
The process of settling of heavier particles in a mixture at the bottom is called
1. sedimentation
2. decantation
3. filtration
4. churning
a solution in which no more soluble substances can be dissolved is called
1. impure
2. pure
3. saturated
4. homogeneous
the process used to separate grains from stalks is called
1. winnowing
2. filtration
3. churning
4. treshing