NEW
Font size
S
M
L
XL
WorksheetsSTAAR Category 2 Science
Total questions: 23
Worksheet time: 12mins
Name
Class
Date
1.
Henry is investigating the properties of elements in section A. What are the general characteristics of elements from section A?
a)
conducts heat and electricity, shiny, and solid
b)
mostly gases and are very reactive
c)
share properties of metals and nonmetals
d)
liquids that are stable in pure form
2.
Some elements have properties of metals and nonmetals, which make them useful in electronic devices. Where can these elements be found?
a)
section A
b)
section B
c)
section C
d)
section D
3.
Transition metals are malleable and are found in section B. What is another property of metals in section B?
a)
conducts heat
b)
liquid state of matter
c)
highly reactive and never found as a pure element
d)
poor conductors of electricity
4.
Which two sections of elements are mostly likely to react and form chemical bonds with one another?
a)
section A and section B
b)
section B and section C
c)
section C and section D
d)
section D and section A
5.
CH4 +2O2 → CO2 +2H2O
How many different elements are involved in this reaction?
How many different elements are involved in this reaction?
a)
two
b)
three
c)
four
d)
five
6.
CH4 +2O2 → CO2 +2H2O
How many atoms are there on the left side of the equation compared to the right side?
How many atoms are there on the left side of the equation compared to the right side?
a)
The left side has more atoms than the right side.
b)
The right side has more atoms than the left side.
c)
The left and right side have the same number of atoms.
d)
It is impossible to know because it depends on the reaction speed.
7.
CH4 +2O2 → CO2 +2H2O
How many atoms of hydrogen are involved in this reaction? Record you answer below.
How many atoms of hydrogen are involved in this reaction? Record you answer below.
a)
6
b)
10
c)
4
d)
2
8.
In the table above, what would be an appropriate title for column C?
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Solid Compounds
9.
The chart below shows the densities of various substances. Which of the answer choices indicate the mass of 6 cm3 of salt?
a)
0.06 grams
b)
6.0 grams
c)
12.6 grams
d)
81.0 grams
10.
When comparing two elements on the periodic table, elements in the same ___________ are most likely to have similar chemical and physical properties.
a)
group
b)
period
c)
area
d)
section
11.
All living things require oxygen to survive. Where on the periodic table above would you find gases like oxygen?
a)
section A
b)
section B
c)
section C
d)
section D
12.
The ability of an element to transfer heat or electricity through it.
a)
Chemical Formula
b)
Coefficient
c)
Conductivity
d)
Density
13.
Found on the left side of the periodic table, these elements have high luster, are usually solid, and conduct electricity
a)
metals
b)
non metals
c)
metalloids
d)
gasses
14.
The amount of matter in a given space
a)
luster
b)
coefficient
c)
malleability
d)
density
15.
A number written slightly smaller, below, and after an element's symbol indicating the number of atoms in a compound
a)
coefficient
b)
subscript
c)
luster
d)
chemical formula
16.
A physical property that describes how a substance reflects light
a)
luster
b)
malleability
c)
density
d)
subscript
17.
Found in a small diagonal section of the periodic table, these elements have unique properties of metals and nonmetals
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Gasses
18.
A number written preceding a chemical formula indicating the number of molecules
a)
Coefficient
b)
Subscript
c)
Density
d)
Periods
19.
A visual representation of the elements grouped by similar properties
a)
Chemical Formula
b)
Periods
c)
Groups
d)
Periodic Table
20.
Found on the right side of the Periodic Table, these elements are poor conductors of electricity and are mostly gases
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Groups
21.
Rows of elements on the Periodic Table
a)
Groups
b)
Periods
c)
Metalloids
d)
NonMetals
22.
A set of symbols and numbers representing the number and type of elements in a compound
a)
Subscript
b)
Coefficient
c)
Chemical Formula
d)
Groups
23.
Columns of elements on the Periodic Table that share similar physical and chemical properties
a)
Groups
b)
Periods
c)
Periodic Table
d)
Subscripts
Reset
