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Worksheets7th Grade Midterm Review
Total questions: 45
Worksheet time: 35mins
Name
Class
Date
1.
What is formed when a rock undergoes weathering and erosion?
a)
It breaks down into sediment
b)
It turns into igneous rock
c)
It turns into sedimentary rock
d)
It melts into magma
2.
Which of the following is an example of chemical weathering?
a)
A rock is hit with a hammer and breaks in two
b)
A rock is picked up by a stream and moved
c)
a rock gets scratched with a nail
d)
acid rain breaks down a rock
3.
Which layer of earth has convection currents that move Earth's tectonic plates?
a)
crust
b)
mantle
c)
outer core
d)
inner core
4.
Where do volcanoes usually form?
a)
Where tectonic plates move apart and magma comes up
b)
In pockets of magma under ground
c)
Where tectonic plates scrape against each other
d)
Where tectonic plates push together and upward
5.
Which of the following minerals is the EASIEST to scratch?
a)
talc - hardness of 1
b)
calcite - hardness of 3
c)
quartz - hardness of 7
d)
diamond - hardness of 10
6.
If sedimentary rock is formed in layers, which layer is the oldest?
a)
The layer at the top
b)
The layer in the middle
c)
The layer at the bottom
7.
Sonar uses sound waves to figure out how deep the ocean is by bouncing sound waves off the bottom. Sonar uses the property of wave _______________ to do this.
a)
reflection
b)
refraction
c)
molecules
d)
repulsion
8.
All matter is made of ______________.
a)
atoms
b)
molecules
c)
energy
d)
waves
9.
The image below is showing
a)
an atom
b)
a molecule
c)
a compound
d)
BOTH a compound and a molecule
10.
Which of the following is NOT one of Earth's layers?
a)
crust
b)
mantle
c)
inner core
d)
tectonic plate
11.
Tectonic plates are made of
a)
the crust and part of the mantle
b)
only the crust
c)
only the mantle
d)
the core
12.
Which of the following natural disasters IS NOT caused by tectonic plate motion?
a)
tsunamis
b)
earthquakes
c)
volcanic eruptions
d)
tornados
13.
Which statement about matter is NOT true?
a)
matter is anything that has mass and takes up space
b)
matter is made of atoms
c)
humans are made of matter
d)
light is made of matter
14.
Molecules are constantly in motion
a)
true
b)
false
15.
When hot materials rises and cold material sinks, it creates
a)
convection currents
b)
conduction currents
c)
radiation currents
d)
tectonic plates
16.
The ___________ is the layer of Earth that is hottest, while the _____________ is the layer of Earth that is coolest
a)
inner core, crust
b)
outer core, crust
c)
crust, inner core
d)
crust, outer core
17.
Why does dye spread out when it's dropped in water?
a)
because the water molecules are moving the dye molecules around
b)
because gravity is spreading out the dye
c)
because the water molecules give the dye energy
18.
When existing rock is exposed to heat and pressure, it forms
a)
sediments
b)
sedimentary rock
c)
igneous rock
d)
metamorphic rock
19.
When rock is melted, it form
a)
sediments
b)
igneous rock
c)
magma
d)
metamorphic rock
20.
What caused the supercontinent of Pangaea to split millions of years ago?
a)
continental drift happened as the tectonic plates moved
b)
volcanic activity formed new continents
c)
earthquakes split the continents apart
d)
parts of the continent sank under water
21.
Definite shape and definite volume
a)
solid
b)
liquid
c)
gas
d)
solid, liquid and gas
22.
No definite shape or volume
a)
solid
b)
liquid
c)
gas
d)
solid, liquid and gas
23.
Which state of matter do the particles in this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
24.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
25.
Which of the phases have particles that have a fixed volume but not a fixed shape?
a)
solid
b)
liquid
c)
gas
d)
plasma
26.
What does this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
27.
What does this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
28.
Which of the following terms identifies the change from a liquid to gas?
a)
Vaporization
b)
Condensation
c)
Deposition
d)
Sublimation
29.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
30.
Phase change from a gas to a liquid.
a)
condensation
b)
evaporation
c)
melting
d)
deposition
31.
5. What is it called when a solid turns directly into a gas?
a)
Sublimation
b)
Condensation
c)
Liquid
32.
Each column in the periodic table is called a
a)
period
b)
group
c)
cluster
d)
unit
33.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
34.
The atoms along the staircase are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
35.
Elements in a ..................have similar chemical properties.
a)
period
b)
group
c)
row
36.
The yellow atoms are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
37.
Elements in the same ________ are more chemically similar.
a)
group
b)
period
c)
club
d)
table
38.
The majority of elements on the periodic table are
a)
man made.
b)
nonmetals.
c)
metals.
d)
gases.
39.
Crushing a soda can is a CHEMICAL change.
a)
True
b)
False
40.
Which of the following tells you that a chemical change may have occurred?
a)
Change Shape
b)
Melting
c)
Vaporizing
d)
Change in color
41.
What happens in ALL chemical changes?
a)
Change in state of matter
b)
A new substance is formed
c)
Bubbles are produced
d)
An explosion
42.
Is Gatorade powder dissolving in water physical or chemical change?
a)
Physical
b)
Chemical
43.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
rust
44.
The element oxygen, represented by the symbol O, is classified as
a)
a pure substance
b)
a compound
c)
a mixture
d)
a solution
45.
Atoms combine to form _______.
a)
electrons
b)
molecules
c)
nuclei
d)
neutrons
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