WorksheetsMatter and Change
Total questions: 39
Worksheet time: 20mins
Name
Class
Date
1.
Compound that releases hydroxide ions, giving it a pH above 7.
a)
element
b)
ion
c)
catalyst
d)
base
2.
Temperature at which a liquid changes to a gas
a)
element
b)
ion
c)
catalyst
d)
boiling point
3.
Substance that cannot be chemically broken down into any other substance.
a)
element
b)
ion
c)
boiling point
d)
suspension
4.
Heterogeneous mixture in which particles of one substance are temporarily mixed
a)
suspension
b)
catalyst
c)
ion
d)
base
5.
Substance that speeds up a chemical reaction
a)
catalyst
b)
suspension
c)
base
d)
boiling point
6.
Charged particle formed when an atom loses or gains electrons
a)
catalyst
b)
ion
c)
base
d)
boiling point
7.
Compound that releases hydrogen ions, giving it a pH below 7
a)
molecule
b)
valence electron
c)
solution
d)
acid
8.
Temperature at which a solid becomes liquid
a)
molecule
b)
valence electron
c)
solution
d)
melting point
9.
Smallest unit of a compound, formed from chemically bonded atoms.
a)
molecule
b)
valence electron
c)
matter
d)
acid
10.
Homogeneous mixture in which one substance dissolves in another
a)
solution
b)
valence electron
c)
base
d)
acid
11.
Anything that has mass and takes up space.
a)
matter
b)
valence electron
c)
solution
d)
acid
12.
Negatively charged particle found in an atom's outermost energy level.
a)
valence electron
b)
base
c)
solution
d)
acid
13.
What are the fundamental building blocks of matter
a)
molecules
b)
atoms
c)
bonds
d)
enzymes
14.
The nuclei of most atoms contain __________.
a)
protons and neutrons
b)
electrons and neutrons
c)
protons and electrons
d)
ions and protons
15.
Most elements in the periodic table are __________.
a)
solids
b)
liquids
c)
gases
d)
plasma
16.
What is the chemical formula for table salt?
a)
sodium chloride
b)
H2O
c)
NaCl
d)
Cl2
17.
Compounds that have the same chemical formula but different molecular structure.
a)
organic compound
b)
polar molecules
c)
gases
d)
isomers
18.
How does the kinetic theory describe matter?
a)
matter has only physical properties
b)
particles are constantly moving
c)
matter exists only in 4 states
d)
only elements are matter
19.
Matter changes state if enough __________ is added or removed
a)
thermal energy
b)
volume
c)
potential
d)
weight
20.
When water vapor condenses to droplets, a ___________ change has taken place.
a)
chemical
b)
sublimation
c)
homogeneous
d)
physical
21.
Which of the following is an example of a chemical property?
a)
density
b)
solubility
c)
combustibility
d)
conductivity
22.
Law of conservation of matter states that during a chemical change, bonds are broken and new bonds form. The number of atoms ___________.
a)
increases
b)
remains the same
c)
decreases
d)
doubles
23.
Every chemical reaction needs ___________ to get started.
a)
activation energy
b)
oxygen
c)
an inhibitor
d)
a rate of reaction
24.
What can you use to determine whether a substance is an acid or a base?
a)
a catalyst
b)
a neutralizer
c)
water and salt
d)
an indicator
25.
An endothermic reaction _________.
a)
destroys matter
b)
is a physical change
c)
absorbs energy
d)
gives off energy
26.
Label the following change as physical or chemical:
Making a homogeneous mixture
Making a homogeneous mixture
a)
physical
b)
chemical
27.
Label the following change as physical or chemical:
burning wood
burning wood
a)
physical
b)
chemical
28.
Label the following change as physical or chemical:
baking cookies
baking cookies
a)
physical
b)
chemical
29.
Label the following change as physical or chemical:
shredding paper
shredding paper
a)
physical
b)
chemical
30.
Label the following change as physical or chemical:
photosynthesis
photosynthesis
a)
physical
b)
chemical
31.
Label the following change as physical or chemical:
iron rusting
iron rusting
a)
physical
b)
chemical
32.
Tell whether the following is a Element, Compound or Mixture:
Atoms join together in a specific pattern for this.
Atoms join together in a specific pattern for this.
a)
compound
b)
element
c)
mixture
33.
Tell whether the following is a Element, Compound or Mixture:
Soil, air, and fruit salads are examples of this
Soil, air, and fruit salads are examples of this
a)
compound
b)
element
c)
mixture
34.
Tell whether the following is a Element, Compound or Mixture:
Made up of only 1 kind of atom
Made up of only 1 kind of atom
a)
compound
b)
element
c)
mixture
35.
Tell whether the following is a Element, Compound or Mixture:
2 or more elements chemically joined together
2 or more elements chemically joined together
a)
compound
b)
element
c)
mixture
36.
Tell whether the following is a Element, Compound or Mixture:
NaCl is an example
NaCl is an example
a)
compound
b)
element
c)
mixture
37.
Tell whether the following is a Element, Compound or Mixture:
A substance that cannot be broken down chemically but do not combine chemically to make a new substance.
A substance that cannot be broken down chemically but do not combine chemically to make a new substance.
a)
compound
b)
element
c)
mixture
38.
Tell whether the following is a Element, Compound or Mixture:
Fe is an example.
Fe is an example.
a)
compound
b)
element
c)
mixture
39.
Tell whether the following is a Element, Compound or Mixture:
Homogeneous and Heterogeneous are 2 types of this.
Homogeneous and Heterogeneous are 2 types of this.
a)
compound
b)
element
c)
mixture
100 %
