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Worksheets7th grade Semester Test Terms
Total questions: 55
Worksheet time: 28mins
Name
Class
Date
1.
A form of an atom that has different number of neutrons. For example: Carbon-12 and Carbon 14
a)
Compound
b)
Molecule
c)
Element
d)
Isotope
2.
A mixture in which substances can not be easily identified
a)
Compound
b)
Molecule
c)
Isotope
d)
Homozygous mixture
3.
A mixture of elements chemically combined
a)
Compound
b)
Molecule
c)
Isotope
d)
Homozygous Mixture
4.
A mixture of two or more elements chemically combined
a)
Compund
b)
Mixture
c)
Molecule
d)
Element
5.
Two or more substances physically combined
a)
Compound
b)
Mixture
c)
Element
d)
Isotope
6.
A mixture in which substances can easily be identified
a)
Compound
b)
Molecule
c)
Heterozygous Mixture
d)
Isotope
7.
The smallest form of a substance that can retain the features of that substance. Any further division results in individual atoms
a)
Atom
b)
Element
c)
Compound
d)
Isotope
8.
An organism that must eat food to obtain energy
a)
Autotroph
b)
Carnivore
c)
Consumer
d)
Food Chain
9.
A flow of energy in many directions from producers to consumers
a)
Autotroph
b)
Carnivore
c)
Consumer
d)
Food web
10.
An organism that only consumes meat
a)
Autotroph
b)
Carnivore
c)
Omnivore
d)
Herbivore
11.
An organism that only consumes producers
a)
Autotroph
b)
Carnivore
c)
Omnivore
d)
Herbivore
12.
An organism that consumes producers and consumers
a)
Autotroph
b)
Carnivore
c)
Omnivore
d)
Herbivore
13.
An organism that uses inorganic sources, like the sun, to produce its own energy
a)
Autotroph
b)
Heterotroph
c)
Carnivore
d)
Omnivore
14.
An organism that eats both plants and animals
a)
Carnivore
b)
Herbivore
c)
Omnivore
d)
Detritivore
15.
The flow of energy in one direction from producers to consumers
a)
Food web
b)
Food Chain
c)
Energy Pyramid
d)
Pyramid of numbers
16.
Stored energy due to position
a)
Gravitational potential energy
b)
Kinetic Energy
c)
Work
d)
Mechanical energy
17.
The ability to do work
a)
Conduction
b)
Convection
c)
Radiation
d)
Energy
18.
Energy is transmitted through a fluid
a)
Conduction
b)
Convection
c)
Radiation
d)
Energy
19.
Energy is transmitted through a substance
a)
Convection
b)
Conduction
c)
Radiation
d)
Energy
20.
Energy of light
a)
Thermal Energy
b)
Radiant Energy
c)
Mechanical Energy
d)
Kenetic
21.
The sum of potential and kinetic energy
a)
Thermal Energy
b)
Radiant Energy
c)
Mechanical Energy
d)
Kinetic
22.
Energy of movement
a)
Thermal Energy
b)
Radiant Energy
c)
Mechanical Energy
d)
Kinetic
23.
Stored Energy
a)
Thermal Energy
b)
Radiant Energy
c)
Mechanical Energy
d)
Potential Energy
24.
Form of energy that is emitted from objects in the form of electrical and mechanical waves. Includes x-ray, gamma ray, infrared, microwave, radio waves and visible light
a)
Thermal Energy
b)
Radiant Energy
c)
Electromagnetic Energy
d)
Potential Energy
25.
Energy of the electromagnetic spectrum
a)
Conduction
b)
Radiation
c)
Electromagnetic Energy
d)
Potential Energy
26.
Using force to move an object
a)
Energy
b)
Work
c)
Conduction
d)
Convection
27.
The energy of heat
a)
Work
b)
Thermal Energy
c)
Radiation
d)
Convection
28.
All the biotic and abiotic factors in an area
a)
Ecosystem
b)
Community
c)
Population
d)
Organism
29.
The living layer of the earth
a)
Biosphere
b)
Community
c)
Population
d)
Organism
30.
The living factors of the environment
a)
Biotic
b)
Community
c)
Population
d)
Organism
31.
A group of ecosystems with similar climates and regions
a)
Biosphere
b)
Biome
c)
Ecosystem
d)
Habitat
32.
All the population living in one area
a)
Ecosystem
b)
Community
c)
Biome
d)
Biosphere
33.
A place where an organism lives
a)
Niche
b)
Ecosystem
c)
Habitat
d)
Community
34.
A job of an organism
a)
Habitat
b)
Niche
c)
Ecosystem
d)
Community
35.
A single living being
a)
Community
b)
Population
c)
Niche
d)
Organism
36.
A group of the same species living in an area
a)
Population
b)
Community
c)
Ecosystem
d)
Biome
37.
A positive subatomic particle found in the nucleus of atoms
a)
Atom
b)
Proton
c)
Neutron
d)
Electron
38.
A Neutral subatomic particle found in the nucleus of atoms
a)
Atom
b)
Proton
c)
Neutron
d)
Electron
39.
A negative subatomic particle found in the nucleus of atoms
a)
Atom
b)
Proton
c)
Neutron
d)
Electron
40.
The shorthand representation of an element
a)
Proton
b)
Neutron
c)
Atomic number
d)
Symbol
41.
The sum of protons and netrons in an atom
a)
Mass number
b)
Atomic Number
c)
Symbol
d)
Element name
42.
The smallest form of matter
a)
Proton
b)
Neutron
c)
Electron
d)
Atom
43.
The number of protons in an atom
a)
Mass number
b)
Atomic number
c)
Symbol
d)
Atomic name
44.
A change in which no new substances are made
a)
Physical change
b)
Chemical change
c)
Mass
d)
Weight
45.
A change in which a new substance is made
a)
Chemical change
b)
Physical change
c)
Mass
d)
Weight
46.
The amount of mass per volume
a)
weight
b)
temperature
c)
density
d)
chemical change
47.
The measure of the amount of heat in an object
a)
Mass
b)
Weight
c)
Density
d)
Temperature
48.
The measure of the pull of gravity on an object
a)
Mass
b)
Weight
c)
Density
d)
Temperature
49.
The amount of matter in an object
a)
Mass
b)
Weight
c)
Density
d)
Temperature
50.
Usually a carnivore or omnivore. It eats an herbivore
a)
Primary consumer
b)
secondary consumer
c)
Mutualism
d)
Commensalism
51.
An organizational method that shows how much energy is in an ecosystem
a)
Primary consumer
b)
secondary consumer
c)
Energy Pyramid
d)
Commensalism
52.
Two organism that neither benefit or harm one another
a)
Primary consumer
b)
secondary consumer
c)
Energy Pyramid
d)
Commensalism
53.
two organisms that have a beneficial relationship
a)
Primary consumer
b)
Parasitism
c)
Mutualism
d)
Commensalism
54.
Usually an herbivore. it is the organism that eats the producer
a)
Primary consumer
b)
Parasitism
c)
Mutualism
d)
Commensalism
55.
One organism is harmed in the relationship while one is benefited.
a)
Primary consumer
b)
Parasitism
c)
Mutualism
d)
Commensalism
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