Worksheets2nd Six Weeks Review Day 2 SCW
Total questions: 25
Worksheet time: 15mins
Name
Class
Date
1.
Which of the following substances is an element?
a)
CO2
b)
NaS
c)
Li
d)
K3F
2.
Which substances listed below are compounds?
a)
calcium
b)
phosphorus
c)
carbon dioxide
d)
water
3.
Which of the following chemical formulas represents a compound?
a)
C3
b)
O2
c)
CH3SO4
d)
H2
4.
Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –
a)
a gas at room temperature.
b)
made of two different elements.
c)
given off by green plants.
d)
useful to human beings.
5.
__________ are made up of one kind of atom.
a)
Elements
b)
Compounds
6.
Element or Compound?
Fe3Be4
Fe3Be4
a)
Element
b)
Compound
7.
Element or Compound?
Au
Au
a)
Element
b)
Compound
8.
Element or Compound?
Ru
Ru
a)
Element
b)
Compound
9.
Element or Compound?
NiSO4
NiSO4
a)
Element
b)
Compound
10.
Which of the following elements is most abundant in the solid part of the Earth?
a)
Calcium
b)
Iron
c)
Silicon
d)
Potassium
11.
This pie chart represents the elemental composition of the _____
a)
Atmosphere
b)
Ocean
c)
Life on Earth
d)
Crust
12.
The goofy made up word we use to remember the elements found in living matter is _____.
a)
NOTRiGHt
b)
HeMaNS
c)
CHOPSN
d)
TeXAnS
13.
Which of the following is the correct elements you would find in the Pacific Ocean?
a)
H, O, Cl, Na
b)
C, H, O, P, S, N
c)
O, Si
d)
N, O
14.
Which of the following is the correct elements you would find in the solid parts of the Earth?
a)
H, O, Cl, Na
b)
C, H, O, P, S, N
c)
O, Si
d)
N, O
15.
Which of the following is the correct elements you would find in the atmosphere?
a)
H, O, Cl, Na
b)
C, H, O, P, S, N
c)
O, Si
d)
N, O
16.
An instant ice pack getting cold when the chemicals are able to touch.
a)
Chemical Change
b)
Physical Change
17.
A car door has become rusted over time.
a)
Chemical change
b)
Physical change
c)
Neither
18.
Mixing two chemicals and the temperature increases or decreases
a)
Chemical Change
b)
Physical Change
c)
Neither
19.
Lighting a match which produces a flame(light)
a)
Chemical change
b)
Physical change
c)
Neither
20.
What is the definition of a Chemical change?
a)
Changes made that create a new substance
b)
Changes made without changing the identity of the substance
c)
neither
21.
Mixing mentos with diet coke to form bubbles
a)
Chemical Change
b)
Physical Change
c)
Neither
22.
Mixing two liquids together to form a solid (Precipitate)
a)
Chemical change
b)
Physical Change
c)
Neither
23.
As an iron nail rusts, the color changes from grey to orange.
a)
Physical Change
b)
Chemical Change
24.
Bubbles form when baking soda is poured on an acid spill.
a)
Physical Change
b)
Chemical Change
25.
A yellow precipitate forms after two solutions are mixed.
a)
Physical Change
b)
Chemical Change
100 %
