2025
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2021
100
A student mixed lemon juice and sugar with warm water. Which property of both lemon juice and the sugar stayed the same when they were mixed with the water?
A. Density
B. Color
C. Shape
D. Mass
D. Mass
100
A student wants to create a model to compare the size and shape of the sun to those of Earth and the moon.
Which objects would provide the BEST model?
A. A beach ball for the sun, a marble for Earth, and a pea for the moon.
B. A basketball for the sun, Earth, and the moon.
C. A golf ball for the sun, a grain of sand for Earth, and a football for the moon.
D. A soccer ball for the sun, and a baseball for Earth and moon.
A. A beach ball for the sun, a marble for Earth, and a pea for the moon.
100
A student heats 250 milliliters of water in a cup to approximately 50o C (122o Fand adds 6 grams of salt. The mixture of salt and water is then stirred for 15 seconds.
Which results will the student MOST LIKELY observe after the mixture has been stirred for 15 seconds?
Pick TWO correct answers
1. The salt will dissolve.
2. The salt will sink to the bottom of the cup.
3. The water will remain clear.
4. The salt will float on the water.
5. The water will change from clean to opaque white.
1. The salt will dissolve.
3. The water will remain clear.
100
Which statement best explains why the sun appears to move across the sky during the day?
A. The Earth is closest to the sun in the winter.
B. The Earth is revolving around the sun.
C. The Earth is tilted at 23.5 degrees.
D. The Earth is rotating on its axis.
D. The Earth is rotating on its axis.
100
For a class demonstration a student turned off the lights in the classroom. The student then shined light from a flashlight through a hole in a piece of cardboard. The class saw the narrow beam of light continue until another student placed a mirror in the light's path.
The light did not continue past the mirror because?
A. light cannot travel very far
B. the mirror absorbed all the light
C. the light was refracted back to the light source
D. light travels in a straight line and cannot go around objects
D. light travels in a straight line and cannot go around objects
200
Students want to add an electric motor that still functions when Switch K is open. At which location should the electric motor be placed?
D. Location 4
200
Students found a rock with fossils in a dry stream bed. Which question can MOST LIKELY be answered by identifying the fossils in the rock?
A. How deep was the water millions of years ago where the fossils are located?
B. What types of organisms now live in the stream when it rains hard and fills with water?
C. What was the environment like millions of years ago in the area of the dry streambed?
D. How many different organisms are now living in the area of the dry streambed?
C. What was the environment like millions of years ago in the area of the dry streambed?
200
A student makes a list to describe a friend. Which of the listed characteristics is a LEARNED BEHAVIOR? Select 2 correct answers.
1. Brown Eyes
2. Draws well
3. Has freckles
4. Reads daily
5. Blonde hair
2. Draws well
4. Reads daily
200
A student is looking directly at a lit nightlight through two different cardboard tubes as shown.
Through which tube, if any, will the light be seen and why?
A. The bent tube only because the light bounces off the sides of the tube and travels though the tube to the student's eye.
B. The straight tube only because the light travels in a straight line directly to the student's eye.
C. Both tubes because light travels equally well along straight and curved paths.
D. Neither tube because both tubes absorb all of the light.
B. The straight tube only because the light travels in a straight line directly to the student's eye.
200
A table of different properties of four samples of matter are shown.
Which conclusion can be made about the samples based on the table.
A. Sample 1 is made of plastic
B. Sample 2 is made of metal
C. Sample 3 is attracted to magnets
D. Sample 4 is less dense than water.
B. Sample 2 is made of metal
300
Which life-cycle stage is MOST similar in the two organisms, and why?
A. Stage 1, because a new living organism has formed.
B. Stage 3, because growth has not started yet.
C. Stage 4, because growth is complete.
D. Stage 5, because more body parts form.
A. Stage 1, because a new living organism has formed.
300
Students perform an investigation to determine which of four materials will keep a hot drink warm for the longest period of time.
The students gather four different cups, each made of a different material. The cups are the same size. The teacher pours equal amounts of heated water into the cups.
The students record the temperature of the water in each cup every minute for 4 minutes. The results are shown in the table.
Which material will keep a hot drink warm for the longest period of time?
A. Material 1
B. Material 2
C. Material 3
D. Material 4
D. Material 4
300
Students poured water and cooking oil into a beaker. The students then added a penny, a plastic paper clip, and a cork to the beaker and recorded their observations.
Which list puts the items in order from MOST DENSE to LEAST DENSE.
A. Cork, oil, plastic paper clip, water, penny
B. Water, penny, oil, plastic paper clip, cork
C. Penny, water, plastic paper clip, oil, cork
D. Oil, penny, cork, plastic paper clip, water
C. Penny, water, plastic paper clip, oil, cork
300
A food chain is shown
Which role do the grasses have in the food chain?
A. They decompose small organisms not produce energy.
B. They prevent the food chain from containing too many carnivores.
C. They capture the energy from the sun and are food for consumers.
D. They break down dead organisms into simpler substances.
C. They capture the energy from the sun and are food for consumers.
300
A wagon is pushed and begins to move. As the wagon moves, it slows down and comes to a stop. The wagon and the direction it is pushed are shown.
What force causes the wagon to stop?
A. The force of gravity which is acting in the same direction as the arrow
B. The force of friction which is acting in the same direction as the arrow.
C. The force of gravity which is acting in the opposite direction of the arrow.
D. The force of friction which is acting in the opposite direction of the arrow.
D. The force of friction which is acting in the opposite direction of the arrow.
400
Scientists believe that a sudden change in the environment at one point led to the disappearance of all the animals in the area.
Which statements are supported by the information in the diagram?
Select TWO correct answers.
1. Large trees most likely grew in Layers 4 and 5
2. At one time the entire area was covered by an ocean.
3. The formation of Layer 4 occurred before the formation of Layer 5.
4. Layer 1 supported only large populations of aquatic plants.
5. The disappearance of the animals occurred before the formation of Layer 1.
2. At one time the entire area was covered by an ocean.
5. The disappearance of the animals occurred before the formation of Layer 1.
400
In addition to weathering by rainwater, which process MOST LIKELY caused this landform?
A. Glacier movement
B. Volcanic Eruption
C. Coastal waves
D. Wind Erosion
D. Wind Erosion
400
Axis deer are an invasive species of deer found in Texas. There are about 125,000 axis deer in Texas. Axis deer eat grasses, flowering plants, and shrubs. The diet and habitat of axis deer are often the same as those of other animals native to Texas.
Based on this information, how do axis deer most likely affect Texas ecosystems?
A. They cause populations of native plants to increase
B. They overgraze the land, which causes soil erosion to increase.
C. They cause the predators of native animals to move to new locations.
D. They increase the availability of food, which causes an increase in herbivore populations.
B. They overgraze the land, which causes soil erosion to increase.
400
A diagram of different sections of land is shown.
Which action is most likely happening in Section Y in the diagram?
A. Wind and rain compacting rock in to larger pieces.
B. Water carrying rocky material to a new location.
C. Chemicals in water gluing sediments to each other.
D. Pressure causing layers of sediment to form over time.
B. Water carrying rocky material to a new location.
400
Students made ma chart classifying animal behaviors.
Which animals behavior is NOT correctly classified.
A. Bear looking for food in a trash can
B. Owl being active at night
C. Dog coming when its name is called
D. Squirrel getting seeds from a bird feeder
B. Owl being active at night
500
Which piece of evidence provides the LEAST support for the claim that hammerhead sharks are adapted to live in open water and stingrays are adapted to live on the ocean floor?
A. A hammerhead shark has sharp teeth to bite and tear into its prey, while a stingray has flat teeth that can be used to crush prey.
B. A hammerhead shark's eyes are positioned in a way that allows it to see in many directions, while a stingray's eyes are positioned so that it can look upward.
C. The slender body shape of a hammerhead shark allows it to swiftly swim through the water, while the flat body shape of a stingray allows it to glide along the ocean bottom and settle into the sand.
D. A hammerhead shark has a body part that is less dense than water and prevents the shark from sinking, while the stingray does not have this body part that helps it float, so it will sink when it stops swimming.
A. A hammerhead shark has sharp teeth to bite and tear into its prey, while a stingray has flat teeth that can be used to crush prey.
500
Students learn that a construction company is planning to cut down trees on a hillside. The students design an investigation to determine how the removal of trees can affect runoff. Their procedure and design are shown.
Which statement best describes an environmental effect of cutting down trees?
A. It could increase the likelihood of soil erosion.
B. It could increase the numbers of rocks in the soil.
C. It could introduce more invasive species to the area.
D. It could prevent soil loss due to pressure from construction.
A. It could increase the likelihood of soil erosion.
500
Which statement BEST describes what happens as water changes from one state to another?
A. As water is cooled, it freezes and changes from a solid to a liquid.
B. As water is cooled, it condenses and changes from a gas to a liquid.
C. As water is heated, it evaporates mand changes from a liquid to a solid.
D. As water is heated, it melts and changes from a gas to a solid.
B. As water is cooled, it condenses and changes from a gas to a liquid.
500
Students make a solar system model on the playground. The school building represents the sun. They label round objects for each planet.
Which planet should they place at the greatest distance from the school building?
Jupiter
Neptune
Mercury
Saturn
Neptune
500
Canyons and mesas are two landforms found in the western part of the United States. Which statement best describes how canyons and mesas are similar?
A. Both were formed by slow-moving glaciers.
B. Both were formed by erosion by wind and water.
C. Both were part of a mountain that was weathered by ice.
D. Both were part of a desert that was reshaped by a flood.
B. Both were formed by erosion by wind and water.