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Worksheets6th grade Unit 4 (PfISD)
Total questions: 45
Worksheet time: 1hrs 29mins
Name
Class
Date
1.
Which is the definition of chemical property?
a)
a property or characteristic of a substance that is observed during a reaction where the chemical composition of a substance is changed
b)
any change that results in the formation of new chemical substances
c)
a property or characteristic of a substance that can be observed without changing the original identity of the substance
d)
any change that does not change the identity of the substance
2.
Which is the definition of physical property?
a)
a property or characteristic of a substance that is observed during a reaction where the chemical composition of a substance is changed
b)
any change that results in the formation of new chemical substances
c)
a property or characteristic of a substance that can be observed without changing the original identity of the substance
d)
any change that does not change the identity of the substance
3.
Which is an example of a chemical property?
a)
odor
b)
combustibility
c)
solubility
d)
all of the above
4.
One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?
a)
evaporation; chemical change
b)
condensation; physical change
c)
evaporation; physical change
d)
condensation; chemical change
5.
What happens when water freezes?
a)
ice is formed; chemical property
b)
cold water is formed; physical change
c)
ice is formed; physical change
d)
cold water is formed; chemical change
6.
Flammability is an example of what property?
a)
Chemical property
b)
Physical property
7.
What type of property is the ability to combust?
a)
Physical property
b)
Chemical property
8.
Freezing in to ice is an example of a
a)
physical change
b)
chemical change
9.
Ability to rust is this type of property:
a)
Physical property
b)
Chemical property
10.
Which is NOT a physical property?
a)
odor
b)
reacts with bleach
c)
sinks in water
d)
density
11.
Which of the following is a chemical property?
a)
how something tastes
b)
ability to explode
c)
ability to float in water
d)
size of an object
12.
Which of the following is a chemical property of water?
a)
Reacts with pure sodium
b)
Boils at 100 oC
c)
Is liquid at room temperature
d)
Has a density of 1 gm/mL
13.
What kind of properties can only be observed when a substance changes into a different substance?
a)
physical properties
b)
chemical properties
c)
liquid properties
d)
real properties
14.
A sheet of copper can be pounded into a bowl
a)
Physical Property
b)
Chemical Property
15.
Barium melts at 725 degrees Celsius
a)
Physical Property
b)
Chemical Property
16.
Gasoline is flammable
a)
Physical Property
b)
Chemical Property
17.
Helium does not react with any other element
a)
Physical Property
b)
Chemical Property
18.
Two clear liquid chemicals are mixed and a solid substance forms, this is an example of what?
a)
Temperature change
b)
Precipitate formation
c)
Gas production
d)
Odor change
19.
Which of the following atomic symbols is written correctly?
a)
ee
b)
hE
c)
C
d)
CL
20.
Which of the following is a pure substance that can't be broken down?
a)
Compound
b)
Element
c)
Law
d)
Molecule
21.
Which of the following atomic symbols is written correctly?
a)
OH
b)
oH
c)
fe
d)
H
22.
Which chemical formula contains exactly four different elements?
a)
CO2
b)
Si4O3B3
c)
BaFeSi4O10
d)
Al3Br4O
23.
Which of the following chemical formulas represents a compound?
a)
C3
b)
O2
c)
CH3CHO
d)
H2
24.
These things make elements
a)
Teachers
b)
Pure substance
c)
Atoms
d)
Gasses
25.
Which of the following is a chemical compound?
a)
Co
b)
CO2
c)
Mg
d)
Al
26.
Compounds are two or more elements that are chemically bonded together.
a)
True
b)
False
27.
A compound is represented by a:
a)
Heart
b)
Atomic Mass
c)
Atomic Number
d)
Formula
28.
Which is evidence that a chemical change has happened?
a)
Bending or Breaking
b)
Nothing happens
c)
The change can be reversed
d)
Color Change
29.
When you bake a cake, it is a chemical change. How do you know this?
a)
The cake tastes good
b)
The cake changed shape
c)
The cake stayed the same
d)
You can't turn the cake back into the ingredients.
30.
H2
a)
Element
b)
Compound
31.
CaCo3
a)
Element
b)
Compound
32.
CO2
a)
Element
b)
Compound
33.
Ca23
a)
Element
b)
Compound
34.
Which of the following is a compound?
a)
Co
b)
He
c)
CO
d)
H
35.
Which best describes a compound?
a)
found on the periodic table
b)
made from one or more elements
c)
a pure substance
d)
only 100 in the world
36.
Which statement best describes an element?
a)
made from mixture
b)
thousands in the world
c)
pure, made of only one thing
d)
can be separated
37.
Elements are represented by a...
a)
More than one capital letter
b)
Chemical symbol
c)
Chemical formula
d)
Oxygen
38.
Which one can be found on the periodic table?
a)
Compound
b)
Element
39.
Water is an example of:
a)
Element
b)
Compound
c)
Solution
40.
This picture represents part of the Periodic Table. “Na” is called the elements
a)
formula
b)
name
c)
symbol
d)
compound
41.
Which of the following is the best description of an element?
a)
substance that cannot be broken down into simpler substance.
b)
A naturally occurring mineral made of more than 1 substance
c)
A small particle made with a specific chemical composition.
d)
atoms that have different abilities when joined together.
42.
Provided is a list of five different substances. How many of these substances are elements?
a)
2
b)
3
c)
4
d)
5
43.
How are elements and compounds different?
a)
A compound is two or more types of matter, an element is one
b)
Compounds are represented by one letter, elements by two.
c)
Infinite num. of elements,but a limited num. of compounds.
d)
Elements are always larger, and compounds are smaller
44.
While elements and compounds are related, they are different. Unlike elements, compounds
a)
consists of only one type of atom
b)
are the smallest form of a particle
c)
exist only as pure substances
d)
are made of at least two types of matter
45.
Which of the following is a compound?
a)
water
b)
oxygen
c)
chlorine
d)
aluminum
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