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WorksheetsScience STAAR Review
Total questions: 109
Worksheet time: 55mins
Name
Class
Date
1.
When a predator is introduced to an ecosystem, the prey population will most likely-
a)
Stay the same
b)
Increase
c)
Decrease
2.
The arrows in a food chain represent the flow of-
a)
time
b)
money
c)
energy
d)
food
3.
The arrows in a food web point from the prey to the ____________.
a)
Predator
b)
Producer
c)
Parasite
4.
An organism that hunts and eats its food is -
a)
Prey
b)
Host
c)
Parasite
d)
Predator
5.
The organisms at the bottom of a food web are______________.
a)
Producers
b)
Primary Consumers
c)
Secondary Consumers
d)
Tertiary Consumers
6.
Producers have _______ of the energy in a food web.
a)
.1%
b)
1%
c)
10%
d)
100%
7.
___________________ must eat another organism to survive.
a)
Producers
b)
Consumers
8.
This organism consumes meat and plants.
a)
Producers
b)
Carnivore
c)
Herbivore
d)
Omnivore
9.
Each energy level on the food pyramid, gets _____ % of the previous level's energy.
a)
10
b)
20
c)
25
d)
50
10.
__________ is related to the number of species living in an environment.
a)
Food Web
b)
Population
c)
Ecosystem
d)
Biodiversity
11.
The more adaptations a species has, the more likely it is that it will survive.
a)
True
b)
False
12.
Food, water, shelter, light and space are all things that organisms ________ for.
a)
look
b)
compete
c)
ask
13.
Runoff with pollutants from land such as chemical fertilizer does not harm the ocean.
a)
True
b)
False, it creates excessive phytoplankton growth
c)
True, it causes animals to grow bigger
d)
False
14.
If photosynthesis is negatively impacted, what happens to plant growth?
a)
Nothing
b)
They grow bigger.
c)
They don't grow as well.
15.
What tool helps scientists classify organisms based on their characteristics?
a)
Periodic Table
b)
Dichotomous Key
c)
Reference Chart
d)
Moon Phase Chart
16.
If you have more than one cell, you are _____________.
a)
Unicellular
b)
Multicellular
17.
If you make your own food, you are___________.
a)
Autotrophic
b)
Heterotrophic
18.
If you do not have a nucleus, you are _________.
a)
Prokaryotic
b)
Eukaryotic
19.
If all of the offspring are genetically identical, they are the result of-
a)
Sexual Reproduction
b)
Asexual Reproduction
20.
If all of your offspring are genetically different, they are the result of-
a)
Sexual Reproduction
b)
Asexual Reproduction
21.
If you are breeding an animal for a specific trait, you are-
a)
conducting selective breeding
b)
conducting primary breeding
c)
conducting genetic testing
d)
isolating genes
22.
This system uses blood to move gases, nutrients, and waste in the body
a)
Circulatory
b)
Nervous
c)
Endocrine
d)
Excretory
23.
This system breaks down food so it can be used for energy
a)
Reproductive
b)
Muscular
c)
Excretory
d)
Digestive
24.
This system regulates functions like growth using hormones
a)
Circulatory
b)
Endocrine
c)
Integumentary
d)
Nervous
25.
This system removes unwanted waste from the body
a)
Skeletal
b)
Respiratory
c)
Excretory
d)
Digestive
26.
This system protects the body and provides it with a sense of touch
a)
Nervous
b)
Endocrine
c)
Integumentary
d)
Respiratory
27.
This system uses muscles to allow movement
a)
Muscular
b)
Nervous
c)
Respiratory
d)
Skeletal
28.
This system monitors the internal and external environment and coordinates the body's response to the change
a)
Integumentary
b)
Nervous
c)
Reproductive
d)
Skeletal
29.
This system allows for the production of offspring
a)
Nervous
b)
Endocrine
c)
Reproductive
d)
Circulatory
30.
This system brings oxygen to the blood and takes carbon dioxide away
a)
Circulatory
b)
Skeletal
c)
Endocrine
d)
Respiratory
31.
This system supports the body, protects organs and allows movement
a)
Muscular
b)
Nervous
c)
Skeletal
d)
Digestive
32.
1. All living things are composed of cells.
2. The cell is the basic unit of life.
3. Cells arise from existing cells.
This is the--
2. The cell is the basic unit of life.
3. Cells arise from existing cells.
This is the--
a)
Cell development theory
b)
Cell origination theory
c)
Leuwenhook theory
d)
Cell theory
33.
If an organism is prokaryotic, reproduces asexually and is unicellular, it is in the Kingdom-
a)
Protista
b)
Animalia
c)
Eubacteria/Archaebacteria
d)
Planta
34.
If an organism is eukaryotic, unicellular or multicellular and doesn't really fit in any other group, it is probably in the Kingdom-
a)
Protista
b)
Fungi
c)
Plantae
d)
Animalia
35.
If the organism is heterotrophic (mostly detrivores or decomposers), eukaryotes and multicellular/unicellular, it is in the Kingdom-
a)
Protista
b)
Fungi
c)
Plantae
d)
Animalia
36.
If the organism is autotrophic, multicellular, has cell walls and eukaryotic, it is in the Kingdom-
a)
Protista
b)
Fungi
c)
Plantae
d)
Animalia
37.
If an organism is heterotrophic, multicellular and eukaryotic, it is probably in the Kingdom-
a)
Protista
b)
Fungi
c)
Plantae
d)
Animalia
38.
What determines physical characteristics in genetics?
a)
mitochondria
b)
genes and chromosomes
c)
atomic number
d)
chloroplast
39.
The atomic number ALWAYS tells you-
a)
the number of valence electrons
b)
the number of periods
c)
the number of protons
d)
the number of neutrons
40.
The atomic number is UNIQUE to an element.
a)
True
b)
False
41.
Atomic mass minus atomic number equals-
a)
Protons
b)
Electrons
c)
Neutrons
d)
Valence electrons
42.
Protons plus neutrons equals-
a)
Atomic Number
b)
Atomic Mass
c)
Valence Electrons
d)
Electrons
43.
Protons and neutrons each have a mass of 1 amu.
a)
True
b)
False
44.
The mass of an electron is 1/2000 amu.
a)
True
b)
False
45.
The charge of a proton is-
a)
Positive
b)
Negative
c)
Neutral
46.
The charge of an electron is -
a)
Positive
b)
Negative
c)
Neutral
47.
The charge of a neutron is-
a)
Positive
b)
Negative
c)
Neutral
48.
What two subatomic particles are found in the nucleus?
a)
Protons and neutrons
b)
Protons and electrons
c)
Electrons and Neutrons
49.
What subatomic particle is found in the electron cloud?
a)
Proton
b)
Neutron
c)
Electron
d)
Valence Electron
50.
What determines the reactivity of an element?
a)
Proton
b)
Electron
c)
Neutron
d)
Valence Electron
51.
What are shiny, ductile, malleable, and good conductors of heat/electricity?
a)
Metals
b)
Metalloids
c)
Non-metals
52.
What are dull, brittle, and not good conductors or heat or electricity?
a)
Metals
b)
Metalloids
c)
Non-metals
53.
Aluminum is a-
a)
Metal
b)
Metalloid
c)
Non-metal
54.
All elements in the same family have the same number of-
a)
Protons
b)
Electrons
c)
Neutrons
d)
Valence Electrons
55.
The existence of atoms was discovered by-
a)
Dalton and Democritus
b)
Thomson
c)
Rutherford
d)
Bohr
56.
The Plum Pudding Model (positive atom with negative particles) was proposed by-
a)
Democritus and Dalton
b)
Thomson
c)
Rutherford
d)
Bohr
57.
Discovered that atoms have a nucleus with protons and neutrons and electrons circle the nucleus-
a)
Dalton and Democritus
b)
Thomson
c)
Rutherford
d)
Bohr
58.
A __________ is the large number in front of a compound and applies to all of the elements in the compound.
a)
Coefficient
b)
Atomic Number
c)
Subscript
d)
Atomic Mass
59.
A _________ is the small number behind an element. It only applies to the element that it is behind.
a)
Coefficient
b)
Atomic Number
c)
Subscript
d)
Atomic Mass
60.
A ______________________ represents the elements and numbers of atoms of each element in a compound.
a)
Chemical Formula
b)
Chemical Reaction
c)
Chemical Equation
61.
The starting components of a chemical reaction are called-
a)
Reactants
b)
Products
c)
Starting Elements
d)
Starting Compounds
62.
The final components of a chemical reaction are-
a)
Reactants
b)
Products
c)
Ending Elements
d)
Ending Compounds
63.
You must begin and end with the same amount of matter/mass is the -
a)
Law of Conservation of Heat
b)
Law of Conservation of Time
c)
Law of Conservation of Energy
d)
Law of Conservation of Mass/Matter
64.
When two or more elements chemically combine, a _____ is formed.
a)
substance
b)
mixture
c)
colloid
d)
compound
65.
Color, Gas, Light, Temperature and Precipitate are all signs of a chemical reaction.
a)
True
b)
False
66.
Bubbles and odor are signs of a gas.
a)
True
b)
False
67.
If a compound contains carbon and possibly hydrogen and oxygen, it is -
a)
Organic
b)
Non-organic
68.
If the Sun, Moon and Earth are in a straight line, they have a _________ impact on the ocean tides.
a)
Small
b)
Large
69.
The new moon is _______the Sun.
a)
Far from
b)
Halfway from
c)
Near to
70.
The full moon is ________ the Sun.
a)
Far from
b)
Halfway from
c)
Near to
71.
The moon phase changes approximately every ______ days.
a)
3-4
b)
7
c)
14
d)
21
72.
If the moon is growing larger, it is-
a)
Waxing
b)
Waning
c)
Crescent
d)
Gibbous
73.
If the moon is growing smaller, it is-
a)
Waxing
b)
Waning
c)
Crescent
d)
Gibbou
74.
The speed and direction of an object is-
a)
Time
b)
Acceleration
c)
Velocity
d)
Force
75.
On a distance-time graph, a diagonal line means-
a)
no movement
b)
constant speed
c)
acceleration
76.
On a distance-time graph, a flat line means-
a)
No motion
b)
Constant speed
c)
Acceleration
77.
On a speed-time graph, a flat line means-
a)
No movement
b)
Constant speed
c)
Acceleration
78.
On a speed-time graph, a diagonal line means-
a)
No movement
b)
Constant speed
c)
Acceleration
79.
An object at rest stays at rest and an object in motion stays in motion unless acted on by an outside force. This is Newton's Law of -
a)
Inertia
b)
Force and Acceleration
c)
Action-Reaction
80.
Force equals mass times acceleration is Newton's Law of-
a)
Inertia
b)
Force and Acceleration
c)
Action-Reaction
81.
For every action, there is an equal and opposite reaction. This is Newton's Law of-
a)
Inertia
b)
Force and Acceleration
c)
Action-Reaction
82.
If speed is increasing or decreasing, the forces are-
a)
Balanced
b)
Unbalanced
83.
This energy is the greatest at the highest point-
a)
Kinetic Energy
b)
Gravitational Potential Energy
84.
Energy caused by moving electrical charges is-
a)
Electrical energy
b)
Mechanical energy
c)
Heat energy
d)
Light energy
85.
Energy possessed by an object due to its motion/movement.
a)
Electrical energy
b)
Heat energy
c)
Mechanical energy
d)
Light energy
86.
Energy transferred by a difference in temperature-
a)
Electrical energy
b)
Heat energy
c)
Mechanical energy
d)
Light energy
87.
If distance is zero, work is zero.
a)
True
b)
False
88.
The movement of matter from one location to another with water, wind, ice or gravity
a)
Chemical weathering
b)
Mechanical weathering
c)
Erosion
89.
The breaking down of material into smaller pieces is-
a)
Erosion
b)
Weathering
90.
Day and night are the result of the _______ of the Earth.
a)
Rotation
b)
Revolution
c)
Orbit
91.
If the Northern Hemisphere is titled towards the Sun, it is-
a)
Spring
b)
Summer
c)
Fall
d)
Winter
92.
If the Earth was not tilted, there would not be-
a)
Day
b)
Night
c)
Seasons
93.
_________ ocean currents give rise to thunderstorms and HURRICANES.
a)
Cold
b)
Warm
94.
1. Continents fit together like puzzles.
2. Fossils and rocks on the continents are the same.
3. The Earth is divided into large plates.
This is evidence of-
2. Fossils and rocks on the continents are the same.
3. The Earth is divided into large plates.
This is evidence of-
a)
The Theory of Sea Floor Spreading
b)
The Theory of Continental Drift
c)
The Theory of Plate Tectonics
d)
The Ice Age Theory
95.
Triangles represent a -
a)
Warm front
b)
Cold front
c)
Stationary front
96.
Half circles represent a -
a)
Warm front
b)
Cold front
c)
Stationary front
97.
Volcanoes and mountains are the result of-
a)
Convergent boundaries
b)
Divergent boundaries
c)
Transform boundaries
98.
A fault generally forms at a-
a)
Convergent boundary
b)
Divergent boundary
c)
Transform boundary
99.
Mid-ocean ridges and rift valleys form at-
a)
Convergent boundaries
b)
Divergent boundaries
c)
Transform boundaies
100.
Steep areas on a topographic map are represented by lines that are -
a)
Close together
b)
Far apart
101.
Gentle or gradual areas are represented by ______ lines on a topographic map.
a)
Close
b)
Far apart
102.
An H-R diagram shows the ______ of stars.
a)
temperature only
b)
brightness only
c)
temperature and brightness
103.
The Earth is part of the ________ galaxy.
a)
Andromeda
b)
Centurion
c)
Milky Way
d)
Zenith
104.
Planets move in an elliptical pattern around the sun due to -
a)
Friction
b)
Time
c)
Gravity
d)
Acceleration
105.
Stars are held together by-
a)
Friction
b)
Time
c)
Gravity
d)
Acceleration
106.
a collection of gases and dusts that forms stars or results from dying stars
a)
Nebula
b)
Galaxy
c)
Planet
d)
Meteor
107.
a sphere of matter with a density and temperature that causes nuclear reactions
a)
Nebula
b)
Star
c)
Comet
d)
Planet
108.
The unit for measuring distance in space-
a)
Kilometer
b)
Mile
c)
Light year
d)
Meter
109.
shows different wavelengths of light from radio waves to gamma waves
a)
Light Spectrum
b)
Wave Spectrum
c)
EM Spectrum
d)
Light Spectrum
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