Worksheetsscience star test 2025
Total questions: 116
Worksheet time: 4hrs 51mins
To give the organisms a way to escape
To provide oxygen for the organisms
To help dry out the habitat
To allow water to get in to the terrarium
The Sagebrush will decrease.
The number of Frilled Lizards will decrease.
The Sun will receive more energy.
The number of Frilled Lizards will increase.
A hedgehog is a small animal that lives in the
forest ecosystem. They are covered with sharp
quills and have the ability to roll themselves into
a little ball when feeling threatened by an
enemy. Which of the following is an adaptation
of a hedgehog?
Breathing in oxygen
having sharp quills
living in a forest ecosystem
their diet
Giant Salvinia is a water plant that grows in South
America. The United States brought the water
plant over for use in ponds and aquariums. A
disadvantage of this plant is that it grows quickly
in Texas and can completely cover ponds and
lakes. What effect does this most likely have on
an ecosystem?
The Salvinia blocks sunlight that other native
plants need.
The water supply increases in the area.
Other plant growth in the area increases.
The amount of rainfall in the area changes.
The chicken goes through complete
metamorphosis.
The moth goes through incomplete
metamorphosis.
The chicken needs oxygen but the moth does not.
Both the chicken and the moth start out as an egg.
wheat only
hawk, wheat,
and grasshopper
snake only
hawk and snake
Different monkey species eat a variety of
foods such as fruit, insects, leaves, and
reptiles. A monkey that knows which tree
has the most fruit is an example of --
an adaptation
a learned behavior
an inherited trait
an environmental trait
Which of the following statements about
ecosystems is true?
A decrease in an organism’s population will
affect another organism in an ecosystem.
Plants provide all the energy in an ecosystem.
Non-living elements in an ecosystem are not
important.
Not all ecosystems need oxygen.
Which statement best explains what happens
in step Y of the tomato plant life cycle?
Fruit forms.
The plant grows roots.
The seed is
planted.
The seedling emerges.
What were the students most likely
investigating?
Which bird’s feet have hollow bones?
Which birds can hop the farthest?
Which model of a bird’s foot moves more
water?
Why do bird’s have different feet?
Which of these is NOT an example of a bicycle using mechanical energy? 5.6A
The pedals, gears and chain help turn the wheels
The wheels turn when the bicycle moves
The front wheel guides the bike when it moves
The reflector allows the bike to be seen at night
Which of the following is a learned behavior? 5.10B
Bees make return trips to drink sugar water from a bowl placed near their hive
Bees have dark eyes and black and yellow stripes
Bees produce honey from nectar they collect
Bees will sting when threatened or disturbed
The lightbulb does not glow. Which statement explains this observation? 5.6B
The battery is not charged
The lightbulb is not part of a complete circuit
The circuit does not have a switch
The bell uses most of the energy from the battery
How do structures such as whiskers and antennae benefit an organism? 5.10A
They help an organism detect their surroundings
They help the organism eat quickly
They help the organism fight predators
none of these
A student looks into a mirror and sees an image of an object. Which diagram shows an X where the object is located? 5.6C
F
G
H
J
All of the following describe the properties of a cork EXCEPT... 5.5A
Lighy brown
Has small holes
Is magnetic
Floats in water
An African savanna is a grassland with shrubs and small trees, yearlong warm temperatures, a dry winter season and a rainy summer season. Which group of animals would you find there? 3.9A
frog, monkey, toucan, penguin
lizard, rattlesnake, pelican, rabbit
bison, rabbit, polar bear, owl
rhinoceros, cheetah, gazelle, giraffe
Which characteristic does NOT describe both the Earth and the Moon? 5.8D
Meteor craters can be found on the surface
Water covers most of the surface
Rocks and dust can be found on the surface
The source of light is the su
Which organism obtains energy without depending on another organism (living thing)? 5.9A
Mountain lion
Cottontail rabbit
Oak tree
Hawk
Which statement best describes the relationship between humans and plants in the Oxygen-Carbon Dioxide cycle? 5.9D
Humans and plants both depend on sunlight to produce their own food
Humans depend on carbon dioxide released by plants and plants depend on oxygen from humans
Humans and trees do not need oxygen or carbon dioxide
Humans depend on Oxygen released by plants and plants depend on carbon dioxide from humans
A student stirs 10 grams of four different powdered solids into 4 beakers with 50 ml of water in each. Which question is the student trying to answer? 5.5D
At what water temperature do the substances dissolve?
How much water is needed to cause a substance to change state?
Which substances float
Which substances dissolve in water?
If the temperature increased by 7 degrees Celsius which city would have a temperature of 39 degrees Celsius? 4.8A
Houston
Lubbock
San Antonio
Brownsville
Which diagram does NOT correctly represent the location of the sun at he time indicated? 5.8C
F
G
H
J
Look at the picture of a freshwater food web. Which organisms transfer the most energy within the food web? 5.9B
Bass, because they are the predators
Copepods, because they support two chains in the web
Crayfish, because they are at the bottom of the food web
Algae, because they are the producers in the web
The fish appears to be closer to the surface than it really is. What causes this difference? 5.6C
Light is reflected
Light is refracted
Light is focused
Light is blocked
Fossil fuels form when particles in water settle to the sea floor and form mud. What kind of particles need to be present for fossil fuels to form? 5.7A
Mostly sand and some wood
Mostly decaying organisms
Mostly lava and sedimentary rocks
How was this canyon most likely formed? 5.7B
Floods eroded the sandstone away from the canyon walls
Glaciers eroded the canyon as the ice melted
Ice wedged into the cracks in the rock and weathered the walls
Wind blew large rocks that smashed into the walls
To make the bulb light brighter the student could....
Remove the switch
Add another battery
Connect a larger bulb to the circuit
Open the switch
If you were sitting around this campfire what kinds of energy would you be experiencing?
sound energy, electrical energy
mechanical energy, electrical energy
light energy, thermal energy
thermal energy, sound energy
If you wanted to test the effect of gravity on an object, which set of materials should you choose?
battery, wires, lightbulbs
hot plate, water, thermometer
two different types of balls, metric ruler
two cups, two different types of soil, water and seeds
Which statement describes weather, rather than climate?
The weather is usually hot and humid year around
The destination has hot summers and cold winters
The summer temperatures average between 29 and 35 degrees
The humidity level on Tuesday was 30%
A class learns about fossil fuels. They learn that coal, oil and natural gas are classified as nonrenewable resources because they take so long to form. How can the class conserve fossil fuels?
Use both sides of notebook paper
Arrange a car pool to and from school
Create a backyard compost pile
Plant flowers in front of the school
Students conduct an investigation to observe the Sun's movement. Which safety procedure should students following during this investigation?
Wear gloves and goggles
Keep loose hair tied back
Never look directly at the Sun
Record all data in science notebooks
Students conduct and investigation to determine which substances are soluble in water. All of the following have the property of solubility in water EXCEPT -
sugar cubes
salt crystals
cooking oil
food coloring
Which testable question could be used to investigate the effects of force on an object?
Why do toy cars move?
Which type of battery lasts the longest?
Where can magnets be purchased?
Do balls roll faster on rough or smooth surfaces?
Which of the following is a learned behavior of a kitten?
Having gray fur
Playing with yarn
Drinking Water
Having two ears
A bear receives the energy it needs to survive after it -
drinks plenty of water
eats fish and berries
takes a nap
rests in the sunlight
All of the following are poor insulators of electricity EXCEPT -
penny
nail
eraser
paperclip
Which mixture can be separated using a coffee filter?
rocks and sand
sand and water
lemon juice and water
sand and iron filings
Plants are known as producers because they produce their own food. How do producers receive the energy for this process?
By consuming soil nutrients
By absorbing sunlight
By releasing water
By producing oxygen
What physical property of matter can be measured using the triple beam balance?
length
height
volume
mass
Which of the following shows conservation of natural resources?
Throw litter on the side of a highway
Write on both sides of notebook paper
Leave the water running while brushing teeth.
Leave the lights on when exiting a room.
Students are combining dried beans and rice. What would be the most efficient way to separate the ingredients?
Evaporation
Coffee Filters
Tweezers
Microscope
The force of friction is caused by:
surfaces rubbing against one another
objects heating or cooling
rough surfaces
smooth surfaces
Mrs. King has a mixture of pepper, sugar, and water. If she wanted to separate them, what should she use?
tweezers and coffee filter
strainer and magnet
her hands
a hot plate
What describes the ability of a solid to dissolve in water?
melt
dissapear
solubility
evaporate
What is the state of matter that has a definite volume but no definite shape
solid
liquid
plasma
gas
What are physical properties of matter?
A mixture that is evenly mixed
A combination of two or more substances
solids, liquids, and gases
characteristics of matter that can be observed or measured
Which type of objects would float?
Those heavier than water
Those with the same density as water
Those less dense than water
Those that are only made of gas
Students are asked to classify renewable and non-renewable resources during class. The classification chart is shown below.
Which two answer choices best complete the blanks.
Petroleum and water
Plants and coal
Timber and natural gas
Air and fish
Students collected data on several objects and recorded the data in a T-chart. Which object would replace the question mark to complete the chart?
Glass marble
Aluminum can
Rubber eraser
Wool sock
Boiling water was placed in containers made of four different materials. Based on the data, which material was the best conductor of heat?
Material 1
Material 2
Material 3
Material 4
Water and oil are poured into the same container. An object is added. The materials are allowed to sit and their final positions are shown in the illustration. What is the most reasonable conclusion that can be made from this test?
The object has the lowest density.
Water is more dense than oil.
The object is more dense than water.
Oil has the highest density.
The table shows how the temperature changed over six minutes of water samples kept in four different containers. Which container was made of the best heat insulator?
Container 1
Container 2
Container 3
Container 4
The table shows how the temperature changed over six minutes of water samples kept in four different containers. Which container was made of the best heat insulator?
Container 1
Container 2
Container 3
Container 4
Students placed three spheres in a tank of water. Which of the following can be concluded based on the results?
Sphere 1 is more dense than Sphere 3.
Sphere 2 is less dense than Sphere 3.
Sphere 3 is less dense than Sphere 2.
Sphere 2 is less dense than Sphere 1
A science class performed an investigation by evaporating a solution containing 10g of salt and 50ml of water. How much salt would you expect to find in the cup at the end of the investigation?
60g
50g
10g
5g
When white marbles are mixed with black marbles the mixture will –
be all the same color
contain black and white marbles
change its state of matter
have less volume
A tablespoon of a substance is added to warm water and stirred. The result was that the substance could no longer be seen. We can conclude from the results that the substance –
is less dense than water
heated the water
flavored the water
dissolved in the water
What tool would best help you sort iron bolts from aluminum bolts?
Which set of procedures would be best to follow when separating a mixture of sand, salt, and water?
The illustration shows a lamp giving off light. What form of energy does the lamp use to produce light?
Mechanical
Thermal
Electrical
Sound
All of the following devices produce light energy EXCEPT –
laser pointer
air conditioners
fluorescent lamps
computer monitors
The table shows some different forms of energy and some ways they are used. Which of the following could be used to complete the table?
Provide energy for refrigerators
Communicate with other people
Used to produce electrical energy
Allows people to see around them
The picture shows a wind-up toy frog. After winding, the toy frog flips over. This toy demonstrates what kind of energy?
Light
Thermal
Electrical
Mechanical
A student observed that sugar in hot water dissolved more quickly than in cold water. The student was investigating the effects of what form of energy?
Thermal
Sound
Electrical
Mechanical
A battery is attached to a buzzer with wire as shown. The buzzer will make noise only when -
another wire connects the buzzer to the battery
the battery is replaced with a stronger one
switch that can open and close is added
the wire is replaced with a longer one
Which of the following correctly shows the configuration of a closed circuit in which the bulb will light?
Light traveling through the air moves in a straight line. An object viewed through water looks different because light rays that travel through water are –
bent
bounced
reflected
absorbed
Which of the following best models how light is reflected?
An arrow hitting a target
a ball bouncing off a wall
An apple falling from a tree
A marble rolling down a ramp
Which illustration best shows light being reflected?
The diagram shows a periscope used to see objects that are behind or under a barrier. What makes it possible to see an object when looking through a periscope? The periscope –
contains mirrors that reflect the object
magnifies small objects so they can be seen
absorbs the light rays passing through it
separates the light into different colors
Students often use a hand lens to make small objects appear larger. A hand lens makes objects appear larger because the lens —
increases the light’s strength
changes the color of the light
bends light passing through it
converts light energy to heat
Students conducted an investigation in which they measured the distance a toy car traveled after rolling down a ramp covered with sandpaper or wax paper. Which of these questions can the students answer by analyzing the results of their investigation?
How does changing the height of a ramp affect the distance a toy car rolls?
How does changing the surface of a ramp affect the distance a toy car rolls?
ow does mass affect the distance a toy car moves after rolling down a ramp?
How does the design of a toy car affect its movement after rolling down a ramp?
Which two tools below would be most useful in testing how the mass of an object can affect the distance it moves after being pushed?
Spring scale and hot plate
Balance and meter stick
Graduated cylinder and beaker
Magnet and thermometer
If a student has two magnets, how might it be determined which magnet is stronger?
Count how many paper clips each magnet can lift
Submerge each magnet in a bowl of water.
Examine each magnet to determine the north pole.
Measure the length and mass of both magnets.
Students conducted an investigation in which they rolled a soda can down a ramp that was 30 cm high and one that was 40 cm high. Which question were the students most likely trying to answer?
How does mass of a soda can affect the distance it will roll?
How does surface friction affect the distance a soda can will roll?
How does the size of a soda can affect the distance it rolls?
How does ramp height affect the distance a soda can rolls?
A science class wanted to know if a golf ball and a table tennis ball would roll the same distance after rolling down a ramp. Which of the following shows a fair test of this idea?
If I mix one cup of sand with a half cup of iron fillings, can I separate them? If yes, how?
No, you can not separate this mixture
By using your hand
With a filter
By using a magnet
Which of the following does NOT have mass?
Light from a flashlight
Water in a glass
Air in a balloon
An empty box
Which of the following is NOT a Conductor?
Water
Iron
Penny
Wood
If a piece of wood is floating at the top of the pitcher with water, that means that the wood is.....
more dense than water
less dense than water
is neither an insulator or conductor
solid
What name is given to any material that allows electricity to pass through it?
Battery
Conductor
Insulator
Appliance
A source of power would be a....
battery
open circuit
closed circuit
a wire
In science, what is the definition of energy?
Movement of things
Ability to do work
Use of electricity
Cycle of work
What kind of energy do we use when we carry out trash to the trash can?
Sound
Mechanical
Thermal
Solar
Which statement about light and water is correct?
Light cannot pass through water.
Light bends just before entering water.
Light changes speed when passing through water.
Light bounces in the difference directions when passing through water.
Sunlight can pass through our classroom windows because the windows are...
clean
opaque
translucent
transparent
Which process would probably create the most rapid change in Earth's surface?
Erosion
Heating
Volcanic eruption
Weathering
Soil is made up of both living and non-living materials. Which of the following is a living material that might be found in soil?
Air
Algae
Mineral
Silt
Which landforms would normally be created by water erosion?
Lakes and cliffs
Canyons and deltas
Mountains and hills
Sand dunes and valleys
Which Earth-changing process involves the gradual wearing away of rock by wind, water, and ice?
Cooling
Rotation
Sedimentation
Weathering
Large cities use hydroelectric power to produce electricity. Hydroelectric power is energy created from....
the heat from the Sun
the movement of wind
moving or falling water
materials that were once alive
What is the source of all energy on Earth?
Coal
Wind
Water
Sun
Which statement BEST explains why soils are different in appearance and texture?
Soils form only after a very long period of time.
Soils can contain different amounts of air and water.
Soils contain living things that affect their appearance and texture.
Soils come from different rocks and develop under different conditions.
Which best describes fossil fuels?
Organic matter trapped in the Earth's crust
Organic matter trapped in igneous rock
Organic matter trapped in sedimentary rock
Non-organic matter trapped in metamorphic rock
In which layer of sedimentary rock would a scientist find the oldest fossil?
youngest layer
top layer
bottom layer
middle layer
Which causes the formation of sand dunes?
erosion
gravity
water
wind
Picture a glacier moving down a mountain....Which statement about glaciers is correct?
Glaciers are the main force in the creation of mountains
Glaciers move to slowly to change Earth's landscape
Glaciers create both deep valleys and mountain lakes
Glaciers carved all of the rivers that currently exist on Earth.
Nathan checks the outside temperature every morning before he gets ready for school. Nathan is checking....
climate
weather
forecast
pattern
During which season of the year does Texas receive them most direct rays from the Sun?
Spring
Summer
Fall
Winter
Which of the following correctly describes the Sun
A gaseous satellite Earth
The largest star in the universe
A star at the center of the solar system
A gaseous planet at the center of the solar system
The Sun appears to move across the sky from morning until nightfall because....
Earth rotates on its axis
the Sun rotates on its axis
Earth is tilted toward the Sun
Earth revolves around the Sun
How many times does Earth revolve around the Sun in one year?
1
7
24
365
Which organisms release oxygen into the air as part of the carbon-dioxide oxygen cycle?
Consumers
Decomposers
Predators
Producers
During which stage of complete metamorphosis does an insect change itself completely from a larva to an adult...
Egg stage
Larva stage
Nymph stage
Pupa stage
Nymphs do not have
eyes
legs
antennae
wings
In order for me to MASTER the Science STAAR TEST I must...
Stay focused! I will read the questions carefully and box in power words that will help me remember the skills I have acquired; also use all of the acronyms I learned and have been using all year.
Try my best but rush on the test before my time is up so that I may finish earlier than everyone else.
Guess the best answer and hope that I am able to remember everything.
Read the questions and record the best answer in hope I do well.
