WorksheetsScience STAAR Released
Total questions: 25
Worksheet time: 25mins
What most likely happened to the dead plants and animals?
They were eaten by scavengers.
G They became fossil fuels.
H They were washed away by water
J They became an underground aquifer.
Based on this information, what is most likely an advantage of the bony fish tail fin over the shark tail fin?
It is easier for a bony fish to change direction quickly since muscles control the movement of the tail fin.
The bones in the tail fin help a bony fish sink to lower depths in the water when searching for food.
The flexible tail fin is fanned by the water, so a bony fish uses less energy to swim.
The thin spines of the tail fin prevent a bony fish from being seen by larger predator fish.
What property of soils is the student most likely examining with this procedure?
F The differences in texture between wet and dry soils
G How well different soils retain water
H How much water is needed to dissolve different soils
J The amount of time it takes different soils to dry
Based on their properties, which of the objects is most likely a metal?
A Object , because it is a solid that is less dense than water
B Object 2, because all metals float in water
C Object 2, because metals conduct thermal energy and electricity
D Object1, because it can be used to provide insulation for thermal energy
Which of the following best describes the role of decomposers in an ecosystem?
They produce their own food through photosynthesis.
They consume other organisms for energy.
They break down dead organisms and waste, returning nutrients to the soil.
They are the primary consumers of plants.
In the water cycle, which process involves water vapor cooling and changing into liquid water?
Evaporation
Condensation
Precipitation
Transpiration
What is the process by which plants release water vapor into the air through their leaves?
Condensation
Transpiration
Evaporation
Precipitation
What is the primary function of the chloroplasts in plant cells?
To break down sugar molecules to release energy
To store water and nutrients
To capture light energy and convert it into chemical energy
To control the entry and exit of substances in and out of the cell
Which of the following is a chemical change?
Dissolving salt in water
Boiling water
Burning wood
Melting ice
What is the term for the amount of matter in an object?
Weight
Density
Mass
Volume
What type of symbiotic relationship benefits one organism without harming the other?
Mutualism
Commensalism
Parasitism
Predation
Which of the following is NOT a renewable resource?
Solar energy
Wind energy
Coal
Hydroelectric power
Which statement correctly describes the transfer of energy in a food chain in this wetland?
F Energy is transferred from hawks to shrews to grasshoppers to marsh grasses.
G Energy is transferred from marsh grasses to crickets to hawks to frogs.
H Energy is transferred from grasshoppers to crickets to frogs to hawks.
J Energy is transferred from cattails to crickets to shrews to hawks.
Which property of light are the students observing in this situation?
F Light can be refracted and separated into different colors as it moves from air to a different medium.
G Light is refracted as it moves from one medium to another medium.
H Light travels in a straight line and can be reflected off the surface of water.
J Light is absorbed by water and reflected off glass.
A LEDs 1, 3, and 4 only
B LEDs 1, 2, 3, and 4
C LEDs 3 and 4 only
D LEDs 1, 3, 4, and 5
Based on the diagram, which statement best compares the life cycles of these two types of organisms?
Young ladybird beetles take many years to develop into adults. Young grasshoppers develop into adults quickly.
Young grasshoppers live in a habitat that is different from that of adults. Young ladybird beetles live in the same habitat as adults.
Young grasshoppers undergo incomplete metamorphosis to become adults. Young ladybird beetles undergo complete metamorphosis to become adults.
Young ladybird beetles have a nymph stage before becoming adults. Young grasshoppers are larvae before becoming adults.
A Conduct five trials, using a different scale to pull each block of wood
B Conduct five trials, pulling a different side of each block each time
C Conduct five trials, using a different table for each trial
D Conduct five trials, pulling each block of wood in the same way for each trial
F travels in straight lines and reflects from the surface of the mirror
G refracts in the glass of the mirror and is spread out all over the room
H enters the mirror and changes direction when it is refracted by the back of the mirror
J travels through air and does not change its direction in air
A science class has an aquarium in which fish and aquatic plants are growing. How is carbon dioxide directly involved in the survival of organisms in the aquarium?
The fish must absorb carbon dioxide through their gills for energy.
Both the plants and the fish need carbon dioxide to make their own nutrients.
The plants need carbon dioxide to make sugar.
The plants release carbon dioxide into the water to control the water temperature.
A Two
B Three
C Four
D Five
What is the primary role of mitochondria in animal cells?
To store genetic information
To produce energy in the form of ATP
To synthesize proteins
To digest cellular waste
Which of the following processes is responsible for the formation of clouds in the atmosphere?
Evaporation
Condensation
Sublimation
Transpiration
In a chemical reaction, what does the law of conservation of mass state?
Mass is created during a reaction
Mass is destroyed during a reaction
Mass is conserved and remains constant
Mass is converted into energy
Which of the following best describes the function of the xylem in plants?
Transporting water and nutrients from roots to leaves
Transporting sugars from leaves to roots
Storing energy in the form of starch
Protecting the plant from herbivores
