Worksheets1st 6 Weeks Review
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
Which of the following is the best description of an element?
a)
A substance that cannot be broken down into simpler substances
b)
A naturally occurring mineral made of more than one substances
c)
A small particle made with a specific chemical composition
d)
A collection of atoms that have different abilities when joined together
2.
Provided is a list of five different substances. How many of these substances are elements?
a)
2
b)
3
c)
4
d)
5
3.
Which element is one of the most abundant in both solid parts of Earth and in living matter?
a)
Carbon
b)
Oxygen
c)
Nitrogen
d)
Phosphorus
4.
Which element makes up most of Earth's atmosphere?
a)
Hydrogen
b)
Carbon
c)
Oxygen
d)
Nitrogen
5.
The chart lists some substances and their symbols. How many of these substances are an example of an element?
a)
1
b)
2
c)
3
d)
4
6.
How are elements and compounds different?
a)
A compound is a combination of two or more types of matter, an element is one type.
b)
Compounds are represented by chemical symbols of one letter, elements by two.
c)
There are an infinite number of elements, but a limited number of compounds.
d)
Elements are always larger units of matter, and compounds are smaller.
7.
How many elements are in the compound Fe2O3?
a)
0
b)
1
c)
2
d)
3
8.
Which of the following is a property of a non-metal?
a)
Conducts electricity and heats well
b)
Can be hammered into thin sheets
c)
Is brittle and breaks easily
d)
Has a shiny, metallic luster
9.
All of the following are properties used to classify elements as metals, non-metals, and metalloids EXCEPT —
a)
texture
b)
conductivity
c)
luster
d)
malleability
10.
Iron (Fe) is classified as a metal while Silicon (Si) is classified as a metalloid. Which physical property do these two elements most likely have in common? They both —
a)
exist as gases at room temperature
b)
have a metallic shine or luster
c)
are brittle and shatter easily
d)
conduct electricity very well
11.
Which of these nonmetals is a liquid at normal temperatures?
a)
Nitrogen (N)
b)
Boron (B)
c)
Bromine (Br)
d)
Carbon (C)
12.
Which of these elements is a semiconductor?
a)
Gold (Au)
b)
Platinum (Pt)
c)
Iron (Fe)
d)
Germanium (Ge)
13.
Which of the following elements are placed in the gap of an open circuit. In which case will the bulb NOT light up when the switch is pressed on?
a)
Iron (Fe)
b)
Copper (Cu)
c)
Sulfer (S)
d)
Aluminum (Al)
14.
Which of the following properties is NOT a property of metals?
a)
They are lustrous
b)
They are poor conductors of heat
c)
They are malleable
d)
They are good conductors of heat and electricity
15.
Which of these sets of elements are nonmetals? Use the periodic table to help you decide.
a)
Na, K, P, Ar
b)
Ca, S, Ne, O
c)
O, F, S, Xe
d)
Li, Mn, Br, B
16.
Which of these elements is a good conductor of electricity?
a)
Sulfur
b)
Neon
c)
Silver
d)
Bromine
17.
On which side of the periodic table would you find the nonmetals?
a)
Right
b)
Left
c)
Center
d)
Staircase
18.
Which of these sets of elements is arranged on a zigzag line between metals and nonmetals on the periodic table?
a)
Copper (Cu), Manganese (Mn), Gold (Ag)
b)
Sodium (Na), Calcium (Ca), Cesium (Cs)
c)
Boron (B), Germanium (Ge), Arsenic (As)
d)
Zinc (Zn), Iron (Fe), Rubidium (Rb)
19.
All metals, except mercury, are _______________ at normal temperatures.
a)
solids or gases
b)
solids
c)
liquids or gases
d)
liquids
20.
All chemicals in the lab are to be considered dangerous.
a)
True
b)
False
21.
Flammable materials, like alcohol, should never be dispensed or used near
a)
an open door
b)
an open flame
c)
the sink
d)
another student
22.
Chipped or cracked glassware is okay to use.
a)
True
b)
False
23.
When you finish working with chemicals, biological specimens, and other lab substances, always
a)
treat your hands with skin lotion
b)
wash your hands thoroughly with soap and water
c)
wipe your hands on a towel
d)
wipe your hands on your clothes
24.
It’s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.
a)
True
b)
False
25.
Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.
a)
True
b)
False
26.
The first step in the scientific method is
a)
Making Observations
b)
Conducting experiments
c)
Analyzing data
d)
Defining the problem
27.
At the end of the scientific method, we must state a
a)
Variable
b)
Purpose
c)
Question
d)
Conclusion
28.
Our recorded observations are called
a)
Data
b)
Control factors
c)
Hypothesis
d)
Experiments
29.
When we make an educated guess we are forming
a)
data
b)
a hypothesis
c)
a factor
d)
variables
30.
To gather information, we can
a)
read books
b)
ask questions
c)
use our senses to study things
d)
all of the above
100 %
