WorksheetsPure Substances & Mixtures - Quiz#1 Prep - GJ
Total questions: 80
Worksheet time: 40mins
Name
Class
Date
1.
What is matter?
a)
Anything that can be seen and touched
b)
Anything that has mass and takes up space
c)
Anything made of molecules
d)
All of the above
2.
Which of the following best describes a solid?
a)
It expands to fill its container
b)
Its particles move freely at high speeds
c)
It holds its shape unless a force is applied to it
d)
It has no defined shape
3.
What is the definition of chemistry?
a)
The study of living organisms
b)
The study of matter and changes in matter
c)
The study of matter and energy
d)
The study of atoms
4.
The amount of space an object occupies is known as its...
a)
Mass
b)
Volume
c)
Weight
d)
Density
5.
Which state of matter has particles that are spread far apart and move freely?
a)
Liquid
b)
Solid
c)
Gas
d)
All of the above
6.
All matter is made up of tiny particles called...
a)
Neutrons
b)
Protons
c)
Atoms
d)
Electrons
7.
Which subatomic particles are found inside the nucleus of an atom?
a)
Protons and Neutrons
b)
Protons and Electrons
c)
Electrons and Neutrons
d)
Only Protons
8.
A liquid is a form of matter that...
a)
Has a defined shape
b)
Has particles packed tightly together
c)
Takes the shape of its container
d)
Is always invisible
9.
Which of the following is a property of a gas?
a)
It has a definite shape
b)
It expands to fill the volume of its container
c)
Its particles are in a fixed position
d)
It does not flow
10.
What is mass?
a)
The amount of space an object occupies
b)
The physical size of an object
c)
A measure of the amount of matter in an object
d)
The central part of an atom
11.
According to the text, chemistry is sometimes called the...
a)
Central Science
b)
Hardest Science
c)
Primary Science
d)
Living Science
12.
Which statement is FALSE regarding solids?
a)
Solids hold their shape
b)
Solids do not flow
c)
Solids take the shape of their container
d)
A tree stump is an example of a solid
13.
Which particles are found orbiting the nucleus of an atom?
a)
Protons
b)
Neutrons
c)
Molecules
d)
Electrons
14.
How are the particles in a liquid described?
a)
They are packed tightly together in a fixed shape
b)
They are close together but can flow past one another
c)
They are spread far apart and move at high speeds
d)
None of the above
15.
Which of these is mentioned as a real-world application of chemistry?
a)
Baking food
b)
Making medicine
c)
Solving crimes
d)
All of the above
16.
What happens when you pour a solid into a bowl?
a)
It takes the shape of the bowl
b)
It keeps its same shape
c)
It expands to fill the bowl
d)
It becomes a liquid
17.
According to the documents, which statement is true?
a)
Water can be a solid, liquid, or a gas
b)
Gases take up space
c)
A gas expands to fit the volume of its container
d)
All of the above
18.
Which state of matter has no defined shape and its particles can flow?
a)
Solid
b)
Liquid
c)
Gas
d)
Both Liquid and Gas
19.
Which two components must all matter have?
a)
Mass and atoms
b)
Atoms and volume
c)
Mass and volume
d)
Protons and neutrons
20.
What is the basic unit of a chemical element?
a)
A molecule
b)
An atom
c)
A proton
d)
A compound
21.
What is the process of a liquid turning into a solid called?
a)
Evaporation
b)
Melting
c)
Freezing
d)
Sublimation
22.
Sublimation is the change of state from...
a)
Liquid to gas
b)
Solid to gas
c)
Gas to liquid
d)
Solid to liquid
23.
Rain falling from clouds is an example of which change of state?
a)
Condensation
b)
Evaporation
c)
Freezing
d)
Deposition
24.
According to the particle theory, what happens when heat is added to a substance?
a)
The particles stop moving
b)
The particles move closer together
c)
The particles move faster
d)
The particles get smaller
25.
A mixture where the individual components are not visible and the composition is uniform is called...
a)
A pure substance
b)
A heterogeneous mixture
c)
An element
d)
A homogeneous mixture
26.
Which of the following is an example of a heterogeneous mixture?
a)
Saltwater
b)
Air
c)
Pizza
d)
Tea
27.
In a solution of sugar and water, the sugar is considered the...
a)
Solvent
b)
Mixture
c)
Solution
d)
Solute
28.
What is referred to as the "universal solvent" because it can dissolve more substances than any other liquid?
a)
Vinegar
b)
Water
c)
Oil
d)
Alcohol
29.
Which separation technique would be best to separate iron nails from wood chips?
a)
Filtration
b)
Evaporation
c)
Magnetism
d)
Sifting
30.
The process used to separate saltwater to obtain solid salt is...
a)
Sifting
b)
Magnetism
c)
Filtration
d)
Evaporation
31.
What is the change of state when a gas turns directly into a solid?
a)
Deposition
b)
Sublimation
c)
Condensation
d)
Freezing
32.
When a solution contains as much solute as it can possibly dissolve at a given temperature, it is described as...
a)
Unsaturated
b)
A solvent
c)
Diluted
d)
Saturated
33.
The oil industry separates petroleum into its useful components using which method?
a)
Distillation
b)
Magnetism
c)
Filtration
d)
Sifting
34.
A substance that contains only one type of particle throughout is called a...
a)
Mixture
b)
Pure substance
c)
Solution
d)
Solvent
35.
What is the process of a solid turning into a liquid called?
a)
Freezing
b)
Condensation
c)
Evaporation
d)
Melting
36.
Which of these is used to separate mixtures based on the size of the particles?
a)
A sieve
b)
A magnet
c)
A heater
d)
A filter
37.
The disappearance of a puddle from the sidewalk on a hot day is an example of...
a)
Evaporation
b)
Condensation
c)
Melting
d)
Freezing
38.
Maple syrup production relies on which separation process to concentrate the sugar?
a)
Filtration
b)
Distillation
c)
Evaporation
d)
Sifting
39.
Improper handling or disposal of which items can release harmful heavy metals like mercury and lead into the earth?
a)
Pesticides
b)
Sewage
c)
Technological devices
d)
Nuclear waste
40.
What is the process of a gas changing into a liquid called?
a)
Sublimation
b)
Melting
c)
Condensation
d)
Evaporation
41.
What is the primary purpose of the particle theory?
a)
To explain the color of substances
b)
To explain why matter behaves the way it does
c)
To classify elements on the periodic table
d)
To measure the mass of particles
42.
According to particle theory, what happens to particles when heat is added?
a)
They slow down
b)
They stop moving
c)
They move faster
d)
They become larger
43.
Which of the following is a key point of the particle theory?
a)
All particles are the same size
b)
Particles in a substance are stationary
c)
There is space between all particles
d)
Adding heat makes particles move slower
44.
How do the particles in a pure substance compare to one another?
a)
They are all different
b)
They are always bonded together
c)
They are all the same
d)
They are different shapes and sizes
45.
Are the particles that make up a solid object, like a brick wall, moving?
a)
No, they are completely still
b)
Only when heat is applied
c)
Yes, they are always moving
d)
Only the particles on the surface move
46.
What are the two main classifications of matter?
a)
Elements and Compounds
b)
Solids and Liquids
c)
Pure Substances and Mixtures
d)
Homogeneous and Heterogeneous
47.
Why do solids have a fixed shape?
a)
Their particles have a lot of space between them
b)
Their particles can flow past one another
c)
Their particles are held in place and cannot move freely
d)
Their particles have the most energy
48.
What must be done to change a gas into a liquid?
a)
Heat must be removed
b)
The pressure must be lowered
c)
Heat must be added
d)
The particles must be separated
49.
A substance that is physically combined with other substances but can be separated is called a...
a)
Compound
b)
Element
c)
Mixture
d)
Pure substance
50.
What are the two types of pure substances?
a)
Elements and Compounds
b)
Mixtures and Solutions
c)
Solids and Gases
d)
Atoms and Molecules
51.
Why can liquids and gases flow?
a)
Because their particles do not move
b)
Because they are always pure substances
c)
Because their particles are in a fixed shape
d)
Because their particles can move past one another
52.
What is matter defined as?
a)
Anything that is a pure substance
b)
Anything made of moving particles
c)
Anything that has mass and takes up space
d)
Anything visible to the naked eye
53.
If enough heat is applied to a solid substance, what are the two possible changes of state?
a)
Melting or Freezing
b)
Freezing or Condensation
c)
Melting or Sublimation
d)
Evaporation or Deposition
54.
What is required to change a solid into a liquid?
a)
Removing heat
b)
Adding pressure
c)
Adding heat
d)
Stirring the substance
55.
Which state of matter has particles with enough kinetic energy to move in any direction without restrictions?
a)
Solid
b)
Liquid
c)
Gas
d)
All of the above
56.
The particles in which state of matter have the least amount of energy compared to the others?
a)
Gas
b)
Liquid
c)
Plasma
d)
Solid
57.
Which statement is NOT part of the particle theory?
a)
Particles are always moving
b)
All particles in every substance are the same
c)
All matter is made of tiny particles
d)
There is space between particles
58.
A substance made of only one type of particle is a...
a)
Mixture
b)
Compound
c)
Pure Substance
d)
Solution
59.
[cite_start]The diagram on page 8 shows that matter is the main category for...[cite: 42]
a)
Only pure substances
b)
Only mixtures
c)
Both pure substances and mixtures
d)
Neither pure substances nor mixtures
60.
What exists in the areas between tiny particles of matter?
a)
Air
b)
Nothing but smaller particles
c)
Energy
d)
Space
61.
What is a defining characteristic of a pure substance?
a)
It can be easily separated
b)
It contains only one type of particle throughout
c)
It is always a solid
d)
Its composition is not uniform
62.
A substance made of two or more elements, like water (H₂O), is called a...
a)
Element
b)
Compound
c)
Mixture
d)
Solution
63.
Which of the following is an example of an element?
a)
Salt
b)
Water
c)
Gold
d)
Air
64.
A mixture where you can see the separate components, like in a salad, is known as a...
a)
Homogeneous mixture
b)
Pure substance
c)
Compound
d)
Heterogeneous mixture
65.
What is another name for a homogeneous mixture?
a)
A solution
b)
A mechanical mixture
c)
An element
d)
A compound
66.
In the compound for methane (CH₄), how many hydrogen (H) atoms are there?
a)
1.0
b)
2.0
c)
3.0
d)
4.0
67.
Which of these is listed as an example of a heterogeneous mixture?
a)
Tea
b)
Vinegar
c)
Air
d)
Pizza
68.
The prefix "hetero-" in heterogeneous mixture means...
a)
Same
b)
Different
c)
Pure
d)
Solid
69.
A mixture is a substance that contains...
a)
Only one kind of particle
b)
Only a single kind of atom
c)
More than one kind of particle
d)
Only one element
70.
What is a key feature of a homogeneous mixture?
a)
You can see the different parts
b)
It is a type of pure substance
c)
Its composition is uniform
d)
It can't be a gas
71.
The prefix "homo-" in homogeneous mixture means...
a)
Different
b)
Liquid
c)
Mixed
d)
Same
72.
Which of the following is an example of a homogeneous mixture?
a)
Soil
b)
Chilli
c)
Saltwater
d)
Cereal with milk
73.
How can you identify a mixture from a particle diagram?
a)
It will only show one type of particle
b)
It will show two or more different types of particles
c)
All the particles will be in a fixed shape
d)
The particles will not be moving
74.
What is another name for a heterogeneous mixture?
a)
Solution
b)
Mechanical mixture
c)
Compound
d)
Pure substance
75.
According to the documents, matter can be classified into which two main categories?
a)
Elements and Compounds
b)
Pure Substances and Mixtures
c)
Homogeneous and Heterogeneous Mixtures
d)
Solids and Liquids
76.
The chemical formula for sugar is C₁₂H₂₂O₁₁. How many carbon (C) atoms are in a sugar molecule?
a)
11.0
b)
22.0
c)
12.0
d)
1.0
77.
Which of the following is a pure substance?
a)
Gasoline
b)
Vinegar
c)
Baking soda
d)
Air
78.
Steel, which is made from different elements, is given as an example of a...
a)
Solid mixture
b)
Gaseous mixture
c)
Pure compound
d)
Liquid mixture
79.
When salt is completely dissolved in water, it forms a...
a)
Heterogeneous mixture
b)
Pure substance
c)
Mechanical mixture
d)
Homogeneous mixture
80.
The compound for ammonia is NH₃. What elements is it made from?
a)
Nitrogen and Helium
b)
Sodium and Helium
c)
Nitrogen and Hydrogen
d)
Sodium and Hydrogen
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