WorksheetsBiology Unit 2 Review
Total questions: 9
Worksheet time: 5mins
Name
Class
Date
1.
What is the smallest unit of matter that retains the properties of an element?
a)
Molecule
b)
Particle
c)
Compound
d)
Atom
2.
Which subatomic particle has a positive charge?
a)
Proton
b)
Neutron
c)
Ion
d)
Electron
3.
Which of the following is an example of a compound?
a)
Nitrogen
b)
Oxygen
c)
Water
d)
Hydrogen
4.
An acidic solution has a pH value:
a)
Less than 7
b)
Equal to 7
c)
Equal to 0
d)
Greater than 7
5.
Which of the following is a characteristic of bases?
a)
They taste sour
b)
They have a high concentration of H+ ions
c)
They turn litmus paper blue
d)
They have a pH less than 7
6.
What are the roles of solvents and solutes in a solution?
a)
Solute gets dissolved in the solvent
b)
Solute dissolves the solvent
c)
Solvent dissolves the solute
d)
Solvent increases the concentration of the solution
e)
Solute provides the medium for the solution
7.
Which two of the following statements are true about acids?
a)
Acids have a pH value below 7
b)
Acids produce H+ ions in solution
c)
Acids taste sweet
d)
Acids have a pH value above 7
e)
Acids turn litmus paper blue
8.
What is the property of water that allows it to stick to other substances?
a)
Adhesion
b)
Cohesion
c)
Capillarity
d)
Bonding
9.
Which of the following involve cohesion?
a)
Ink sticking to paper
b)
Formation of water droplets
c)
Ice melting into water
d)
Oil spreading on water surface
e)
Formation of spherical mercury droplets
100 %
