Is Matter Around Us Pure Test
1. A pure substance contains:
A. only one type of particle
B. two types of particles
C. many types of particles
D. mixtures
A. only one type of particle
B. two types of particles
C. many types of particles
D. mixtures
2. An element is made up of:
A. one kind of atom
B. two kinds of atoms
C. compounds
D. mixtures
A. one kind of atom
B. two kinds of atoms
C. compounds
D. mixtures
3. Water is an example of:
A. compound
B. element
C. mixture
D. metal
A. compound
B. element
C. mixture
D. metal
4. Air is a:
A. mixture
B. compound
C. element
D. pure substance
A. mixture
B. compound
C. element
D. pure substance
5. Salt dissolved in water forms a:
A. solution
B. suspension
C. element
D. compound
A. solution
B. suspension
C. element
D. compound
6. A homogeneous mixture has:
A. uniform composition
B. different layers
C. visible particles
D. uneven composition
A. uniform composition
B. different layers
C. visible particles
D. uneven composition
7. Milk is an example of:
A. colloid
B. element
C. compound
D. metal
A. colloid
B. element
C. compound
D. metal
8. Sand in water forms:
A. suspension
B. solution
C. compound
D. element
A. suspension
B. solution
C. compound
D. element
9. In a solution the substance that dissolves is called:
A. solute
B. solvent
C. compound
D. element
A. solute
B. solvent
C. compound
D. element
10. The medium in which a solute dissolves is called:
A. solvent
B. solute
C. mixture
D. compound
A. solvent
B. solute
C. mixture
D. compound
11. A heterogeneous mixture has:
A. non uniform composition
B. uniform composition
C. same particles
D. fixed structure
A. non uniform composition
B. uniform composition
C. same particles
D. fixed structure
12. The particles in a solution are:
A. very small
B. very large
C. visible
D. heavy
A. very small
B. very large
C. visible
D. heavy
13. A suspension is:
A. a heterogeneous mixture
B. a homogeneous mixture
C. an element
D. a compound
A. a heterogeneous mixture
B. a homogeneous mixture
C. an element
D. a compound
14. Colloidal particles show:
A. Tyndall effect
B. melting
C. boiling
D. freezing
A. Tyndall effect
B. melting
C. boiling
D. freezing
15. Filtration is used to separate:
A. insoluble solids from liquids
B. gases
C. liquids only
D. compounds
A. insoluble solids from liquids
B. gases
C. liquids only
D. compounds
16. Evaporation is used to separate:
A. dissolved solids from liquids
B. gases from liquids
C. solids from gases
D. liquids from gases
A. dissolved solids from liquids
B. gases from liquids
C. solids from gases
D. liquids from gases
17. Air is composed of:
A. many gases
B. one gas
C. only oxygen
D. only nitrogen
A. many gases
B. one gas
C. only oxygen
D. only nitrogen
18. Sugar solution is:
A. homogeneous mixture
B. heterogeneous mixture
C. compound
D. element
A. homogeneous mixture
B. heterogeneous mixture
C. compound
D. element
19. Muddy water is:
A. suspension
B. solution
C. compound
D. element
A. suspension
B. solution
C. compound
D. element
20. Colloids appear to be:
A. homogeneous but are actually heterogeneous
B. heterogeneous only
C. pure substances
D. elements
A. homogeneous but are actually heterogeneous
B. heterogeneous only
C. pure substances
D. elements