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2nd Nine Weeks Review
Test Description: 7th Grade Review for 2nd Nine Weeks Test
Instructions: Answer all questions to get your test result.
1) The measurement of an object's mass is a ____.
A
chemical property
B
physical change
C
physical property
D
chemical change
2) The ability of an apple to change color when exposed to air is a ____.
A
physical change
B
chemical property
C
chemical change
D
physical property
3) Living things are divided into two groups-______________and___________.
A
nitrogen and decomposers
B
Oxygen and hydrogen
C
Consumers and producers
D
Large and small
4) At what point does the ball have the most potential energy?
A
Just beofore you drop it
B
When it reaches its highest point
C
When it leaves your hand
D
Just before you catch the ball
5) Which of the following is NOT a possible sign of a chemical change?
A
change in state
B
the release of energy
C
the release of a gas
D
change in color
6) A process that changes light from the sun into sugar for food is called__________.
A
Photosynthesis
B
Fermentation
C
Osmosis
D
Respiration
7) Absolute age is ____.
A
the process in which the nucleus of an atom breaks down
B
the age, in years, of a rock or other object.
C
the time is takes for half of the atoms in an isotope to decay
D
the process used to calculate the absolute age of rock by measuring the ratio of parent isotope to daughter product
8) Respiration requires
A
H2O
B
CO2
C
CO
D
O2
9) Cardiac muscle is an example of
A
Involuntary muscle
B
Voluntary muscle
C
Smooth muscle
D
Rough muscle
10) Chemical energy is stored in __________molecules.
A
Plant
B
Food
C
Granulate
D
Oxygen
11) Chemical reactions break down food molecules into simpler substances and release stored energy in a process called____________.
A
metabolism
B
fermentation
C
respiration
D
photosynthesis
12) Photosynthesis and _______________ cannot take place without each other.
A
the nitrogen cycle
B
recycling
C
respiration
D
the carbon cycle
13) Energy may change into _________forms.
A
many
B
only one
C
two
D
few
14) The ____________________________states that energy is never created or destroyed.
A
law of concentration
B
law of conservation
C
law of repeated energy
D
rule of 72
15) When there is a lack of oxygen, ________ takes place instead of respiration.
A
Photosynthesis
B
Metabolism
C
Fermentation
D
Respiration
16) If a ball is being held in a glove, its energy would be__________.
A
Potential
B
Chemical
C
Physical
D
Kinetic
17) Three examples of physical change are ____.
A
boiling water, a nail rusting, a melting candle
B
melting ice, mowing the lawn, carving a statue
C
a pond freezing, breaking glass, a burning candle
D
applying lipstick, making lemonade, baking bread
18) The time is takes for half of the atoms in an isotope to decay is ----.
A
Absolute age
B
Radioactive decay
C
Radiometric dating
D
Half-life
19) What are the 3 main things that are needed for photosynthesis to take place?
A
O2, CO2, H2O
B
O2, CO2, Light
C
Light, Sugar, H2O
D
Light, H2O, CO2
20) All the chemical reactions in an organism make up its __________.
A
Metabolism
B
Enzymes
C
Respiration
D
Photosynthesis
*select an answer for all questions
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