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STAAR #1

Total questions: 88

Worksheet time: 2hrs 47mins

Name
Class
Date
1.

A scientist is studying an unknown substance. When placed in an open, rectangular container, the substance is a rectangle. When placed in an open, triangular container, the substance is a triangle. The substance is which state of matter?

a)

Definitely gas

b)

Definitely liquid

c)

Definitely sold

d)

Possibly gas or possibly liquid

2.

All of the following are solutions EXCEPT...

a)

salt and water

b)

sugar and water

c)

water and oil

d)

lemon juice and water

3.
What is condensation?
a)
gas to solid
b)
gas to liquid
c)
liquid to solid 
d)
solid to liquid 
4.
What is happening when my ice cream changes from a solid to a liquid?
a)
freezing
b)
melting
c)
burning
d)
evaporation
5.
The speed of the molecules determines the _____.
a)
volume
b)
density
c)
pressure
d)
temperature
6.
To separate sand and iron filings you would use a  ___________.
a)
a screen strainer
b)
coffee filter paper
c)
a magnet
d)
your hands
7.
Students collected data on the appearance of four substances and how they reacted when mixed with water. Which substances dissolved when mixed with water?
a)
A and B
b)
A and C 
c)
B and C 
d)
C and D
8.
____________ stops the flow of electricity.
a)
A conductor
b)
An insulator
c)
A magnet
9.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
10.
When the switch is closed, the light
a)
comes on
b)
stays off
c)
burns out
11.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
12.
What type of circuit is shown in the picture?
a)
Double circuit
b)
Series circuit
c)
Magnetic circuit
d)
Parallel circuit
13.
What type of circuit is shown in the picture?
a)
Series
b)
Parallel
c)
Double
d)
Switch
14.
What type of circuit is shown in the picture?
a)
Parallel
b)
Series
c)
Closed
d)
Open
15.
The flower’s stem appears larger under water because the water —
a)
absorbs light
b)
produces light
c)
repels light
d)
refracts light
16.
A shiny aluminum screen can be placed on the windshield of a parked car.This screen helps to keep the car cool because it —
a)
reflects the sunlight
b)
absorbs heat
c)
causes evaporation
d)
conducts electricity
17.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
18.
a)

a

b)

b

c)

c

d)

d

19.
Smooth surfaces _______ a lot of light.
a)
reflect
b)
bend
c)
absorb
d)
twist
20.
Energy cannot be created or destroyed but exists in different forms, such as
a)
mass and weight
b)
boiling point and melting point
c)
light, heat and sound
d)
direction and speed
21.
The energy associated with an object that is moving is called
a)
mechanical energy
b)
thermal energy
c)
electromagnetic energy
d)
chemical energy
22.
Which form of energy is best shown in this picture?
a)
mechanical
b)
electrical
c)
chemical
d)
nuclear
23.

Water flows through turbines in dams like the one shown above. The flowing water makes the turbines spin. What type of energy is used to make the turbines spin in this type of dam?

a)

Light energy

b)

Thermal energy

c)

Sound energy

d)

Mechanical energy

24.

Three different objects that use the same source of energy are shown above. What is the energy source for these objects?

a)

Light energy

b)

Mechanical energy

c)

Sound energy

d)

Electrical Energy

25.

Many people ride a bicycle for fun and exercise. Some people ride a bicycle to work because it saves money and benefits the environment by reducing the use of fossil fuels. Which of these is NOT an example of the bicycle using mechanical energy?

a)

The pedals, gears, and chains help turn the wheels

b)

The wheels turn when the bicycle moves

c)

The front wheel guides the bicycle as it moves

d)

The reflector allows the bicycle to be seen at night

26.

Which object requires only mechanical energy to perform its main function?

a)
b)
c)
d)
27.
Which experiment listed below will best determine how friction affects the speed of a rolling object?
a)
Roll 3 objects of various sizes across the floor.
b)
Roll 3 objects of equal size from various heights across the floor.
c)
Roll 3 objects of equal size across 3 different types of surfaces.
d)
Roll 3 objects of equal size from equal heights across the floor.
28.
The location of an object.
a)
Speed
b)
Position
c)
Friction
d)
Gravity
29.
A polar bear slides down an ice covered hill. As he slides, he slows down. Eventually he comes to a stop. What force  acts on an object to slow or stop its motion?
a)
Speed
b)
Friction
c)
Gravity
d)
Direction
30.
A student drops a ball from shoulder height. The ball bounces 5 times before coming to a stop. What force causes the ball to fall to the ground?
a)
Friction
b)
Magnetism
c)
Position
d)
Gravity
31.
Looking at the picture, what two tools would be needed to measure the effect of friction on the ball?
a)
Hand lens and balance
b)
Balance and spring scale
c)
Measuring tape and stop watch
d)
Spring scale and hand lens
32.
A boy applies a pushing force on a ball thrown into the air. What applies a pulling force on the ball at the same time?
a)
Gravity
b)
The height of the boy
c)
Friction
d)
The mass of the ball
33.
A flammable liquid produced from organic matter buried under layers of sediment  for millions of years
a)
oil
b)
coal
c)
natural gas
d)
pressure
34.
A flammable material, without definite form, produced from organic material buried under sediments found near oil
a)
Pressure
b)
Oil
c)
Natural Gas
d)
Coal
35.
The action of force by one object against another
a)
Pressure
b)
Fossil Fuel
c)
Natural gas
d)
Sedimentary rock
36.
Rock made of layers of compressed organic and inorganic sediments
a)
Fossil Fuel
b)
Oil
c)
Sedimentary Rock
d)
Natural Gas
37.
Non-renewable flammable material made from the remains of plants and animals, buried, that is used for power and heat
a)
Sedimentary Rock
b)
Pressure
c)
Natural Gas
d)
Fossil Fuel
38.
Fossil fuel created from swamp plants millions of years ago that have undergone heat and pressure
a)
Pressure
b)
Sedimentary rock
c)
fossil fuel
d)
coal
39.
Preserved parts or traces of animals and plants that lived in the past 
a)
Evidence
b)
Weathering
c)
Decay
d)
Fossils
40.
Artifacts that provide information about the Earth's past (ex: fossils)
a)
Evidence
b)
Weathering
c)
Decay
d)
Imprint
41.
To rot and break down into small parts
a)
Imprint
b)
Paleontonlogist
c)
Fossils
d)
Decay
42.
The breakdown of rock into smaller particles from the effects of wind, water, and ice
a)
Imprint
b)
Fossils
c)
Weathering
d)
Decay
43.
Students wanted to model the way erosion by water can create certain land forms. They let water pour, in a thin line, over a salt brick for half an hour. The way in which the brick changed is shown above. Which of the following best describes the real world landform they modeled?
a)
Stream deposits creating a delta
b)
A river carving out a canyon
c)
Folding of rock layers building a mountain
d)
Glacial melt water filling a lake
44.
Coal and oil formed in places that, in ancient times, produced large amounts of –
a)
Thermal energy
b)
Organic matter
c)
Ocean currents
d)
Volcanic activity
45.
In order for plants to be changed into fossil fuels, the plants must first die, and then be –
a)
decomposed by bacteria
b)
eaten by consumers
c)
completely dried out
d)
buried deep underground
46.
Which of the following locations would most likely produce sedimentary rock after much time has passed?
a)
A beach where sand is being deposited
b)
A mountain that receives snow year around
c)
A volcano that erupts frequently 
d)
A rocky desert that is windy all the time
47.
What is another word for an educated guess?
a)
Conclusion
b)
Hypothesis
c)
Scientific Investigation
d)
Prediction
48.
What tool do we use to measure volume
a)
Thermometer
b)
Balance Scale
c)
Graduated Cylinder
d)
Meter Stick
49.
This occurs when light bounces off of a smooth surface.
a)
Refraction
b)
Echo
c)
Reflection
d)
Transparent
50.
Sounds needs this to travel.
a)
sunlight
b)
a medium
c)
instruments
d)
a vaccuum
51.
Which of these is transparent?
a)
Basketball
b)
Diamond
c)
Paper
d)
Fish Bowl
52.
We see color because when the light hits the object, that color is---
a)
reflected
b)
absorbed
53.
What tool would you use to measure the distance a ball rolled?
a)
Graduated Cylinder
b)
Meter Stick
c)
Balance Scale
d)
Thermometer
54.
What is the base unit for mass?
a)
Liter
b)
Centimeter
c)
Gram
d)
Millimeter
55.
What is the system used for measurement?
a)
US Customary
b)
SI or Metric System
56.
All of these are measurements of length EXCEPT---
a)
Centimeter
b)
Kilometer
c)
Meter
d)
Milligram
57.
If you set a pencil in a glass of water, what seems to happen to the pencil?
a)
The pencil reflects the light from the water.
b)
The pencil absorbs the light.
c)
The water reflects the light.
d)
The pencil seems to bend because of the light refracting through the water.
58.
John wants to measure how much his backpack weighs at dismissal. What tool should he use?
a)
Balance Scale
b)
Graduated Cylinder
c)
Thermometer
d)
Meter Stick
59.
How does light travel?
a)
Through compression waves
b)
Through solids
c)
In a straight line
d)
By vibrations
60.
Sounds travel best through which type of medium?
a)
Large
b)
Liquid
c)
Gas
d)
Solid
61.
What do the Earth and Moon have in common?
a)
They both have the same gases in the atmosphere.
b)
B  Gravity is the force that keeps them both in their orbits.
c)
The gravity of the Earth and the Moon is the same.
d)
Earth and Moon both have one natural satellite.
62.
Which object in space produces, rather than reflects, light?
a)
Sun
b)
Moon
c)
Venus 
d)
Pluto
63.
Which describes the orbital position of Earth in our solar system?
a)
the third rocky planet
b)
the third of four gas planets
c)
the third of five ringed planets
d)
the planet between a belt of asteroids and a gas giant
64.
Why does erosion happen on Earth, but not on the Moon?
a)
The Moon does not receive enough sunlight to erode.
b)
The Moon does not experience wind or rain.
c)
The rock on the Moon is too hard to erode.
d)
D  Erosion occurs only where there is plant and animal life.
65.
Which of the following best describes rotation?
a)
the length of time it takes for Earth to make one turn on its axis
b)
the length of time it takes the Moon to go around the Earth
c)
the length of time it takes Halley’s Comet to go around the Sun
d)
the length of time it takes Venus to go around the Sun
66.
A student is looking for evidence that Earth is always rotating on its axis. Which of the following would provide the best evidence?
a)
The different amount of rain that falls each day
b)
The appearance of shadows changing throughout the day
c)
The presence of other planets in the night sky
d)
The different phases of the moon in a month
67.
The moon is characterized as having
a)
little or no atmosphere
b)
large bodies of water
c)
no surface dust
d)
large amounts of oxygen
68.
One way the Moon is different from the Earth is - 
a)
no craters on Earth
b)
no weather on Earth
c)
no weather on the moon
d)
more gravity on the moon
69.

A woodpecker must build its nest high above the ground to protect its eggs. It also feeds on insects that live in wood. What part of its environment provides for both its needs of egg protection and feeding?

a)

Humans

b)

Lakes

c)

Trees

d)

Clouds

70.

In the diagram, which is the best description of the role of the producer in the food chain illustrated below?

a)

The Sun creates energy that is used by the animals, including the small and large fish.

b)

The plant uses sunlight to make food energy that is passed to the small fish.

c)

The small fish gives its energy to the plant when it breaks the plant down after eating it.D

d)

The large fish gives its energy to the plant when it decomposes and becomes part of the so

71.

The primary source that provides the original source of energy in any food web is –

a)

The atmosphere

b)

The water

c)

The soil

d)

The Sun

72.

When humans bring large herds of cattle into a prairie region to graze on the grasses, it is likely to have a harmful effect most directly on –

a)

prairie animals that eat only grasses

b)

birds that eat insects stirred up by grazers

c)

plants that compete with grasses for space

d)

insects that pollinate wild flowers on the prairie

73.

Which of the following would most likely result in a decrease in the population of insect-eating birds that build their nests in trees?

a)

Overhunting of animals that prey on birds

b)

Observation of the birds by scientist

c)

Introduction of a new type of insect

d)

Clearing of forests to build a highway

74.

The hunting by humans of a population of buffalo is likely to have what effect on the ecosystem of the buffalo?

a)

The buffalo will struggle to find enough food

b)

The predators that prey on buffalo increase

c)

The buffalo will become more numerous.

d)

The amount of grasses that the buffalo eat will increase.

75.

Scientist have been collecting data for a number of years on the number of elephants in one of Africa’s largest national parks. Based on the data in the chart, in which year is it most reasonable to conclude that the park experienced a severe drought, when very little rain fell and the animals did not have enough water?

a)

2001

b)

2002

c)

2003

d)

2004

76.

In the illustration, arrow 1 represents the gas that animals contribute to the atmosphere, and arrow 2 represents the gas that plants contribute to the atmosphere. Which of the following correctly identifies these gases?

a)

1 = oxygen, 2 = carbon monoxide

b)

1 = nitrogen, 2 = carbon dioxide

c)

1 = oxygen, 2 = nitrogen

d)

1 = carbon dioxide, 2 = oxygen

77.

Plants are interacting directly with another living element of their environment when they are -

a)

soaking up water

b)

absorbing sunlight

c)

attracting insects

d)

taking in carbon dioxide

78.

Information on the brown tree snake and the habitat on the island of Guam are given here. The brown tree snake was introduced to the island of Guam by humans in the 1950’s. What direct effect did the introduction of the tree snake likely have there? The island today probably has fewer -

a)

humans bitten by snakes

b)

roads built on the island

c)

lizards living in the trees

d)

hours of sunlight each day

79.
Many animals in an ecosystem depend on other animals for —
a)
air
b)
energy
c)
shelter
d)
water
80.
The diagram shows a woodlands food chain.
What is the role of the sunflower in the food chain?
a)
To make energy available directly to the hawk
b)
To use the sun’s energy to produce food
c)
To break down waste products left by squirrels
d)
To provide a place for the hawk to build its nest
81.
Plants are interacting directly with another living element of their environment when they are - 
a)
soaking up water
b)
absorbing sunlight
c)
attracting insects
d)
taking in carbon dioxide
82.
If humans over-hunted a population of insect-eating birds, what immediate change would likely be seen in the area?
a)
Severe loss of vegetation
b)
Migration of small mammals 
c)
Increased seedling germination
d)
Increased populations of insects
83.
Which organism would be LEAST likely to live in a desert?
a)
Cactus
b)
Snake
c)
Alligator
d)
Tarantula
84.
Which sentence best describes the relationship between climate and ecosystems?
a)
Climate does not affect ecosystems
b)
Climate determines the nature of ecosystems
c)
Climate is determined by ecosystems 
d)
Climate is a minor factor in ecosystems
85.
How do decomposers obtain nutrients from their environment?
a)
by making their own food
b)
by eating live animals
c)
by breaking down dead organisms
d)
by feeding on living plants
86.
What would most likely happen in this ecosystem if there was a decline in the number of foxes?
a)
The number of mice would increase
b)
The number of mice would decrease
c)
The number of grasses would increase
d)
Nothing would happen in the ecosystem
87.
If sunlight could no longer reach the habitat shown, which of these would happen first?
a)
The fish in the lake would increase.
b)
The deer would get larger
c)
The grass would die
d)
The lake would dry up
88.
Based upon this food web, which two organisms compete for plants?
a)
Hawk and Mouse
b)
Grasshopper and Snake
c)
Mouse and Lizard
d)
Rabbit and Grasshopper

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