Organisms & Environment
A zookeeper sets up a habitat for a certain species of rabbit. Which answer choice describes the rabbit as it interacts with two nonliving parts of the rabbit’s habitat? A The rabbit breathing air while running down a rocky path B The rabbit licking its fur while feeding its young C The rabbit hiding under plants from loud noises D The rabbit nibbling on vegetation inside the habitat
A The rabbit breathing air while running down a rocky path
*BONUS 200* 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? A Jupiter B Neptune C Mercury D Saturn
B Neptune
*BONUS 200* Which statement best explains why the sun appears to move across the sky during the day? F The Earth is closest to the sun in the winter. G The Earth is revolving around the sun. H The Earth is tilted at 23.5 degrees. J The Earth is rotating on its axis.
J The Earth is rotating on its axis.
A beaker with 115 mL of solution has a temperature of 21°C. The solution contains 5 g of salt and 115 mL of water. Students added two ice cubes to the solution and stirred the solution with a stirring rod. Which properties of the solution changed as the ice cubes melted? A. The color and physical state of the solution B. The temperature, mass, and volume of the solution C. The volume, temperature, and mass of the salt in the solution D. The physical state and temperature of the solution
B. The temperature, mass, and volume of the solution
The moon, the sun, and Earth have different physical characteristics. Which of these best describes a physical characteristic of the sun? F It is solid and has many layers. G It rotates on its axis every 24 hours. H It is mostly made of hydrogen and helium. J It is smaller and has less gravity than Earth or the moon.
H It is mostly made of hydrogen and helium.
Which of these describes one or more living organisms that depend on another living organism to survive? F. Bacteria living in the mouth of a horse G. Ivy plants growing up a fence to obtain more sunlight H. Mold living on a hard, rocky surface J. An angelfish releasing carbon dioxide into pond water
F. Bacteria living in the mouth of a horse
A bright-red male cardinal comes to a school bird feeder every morning. Like other cardinals, this bird makes a sharp chirping sound as it hops around the bird feeder. Which of these is a learned behavior of this bird? F Having red feathers G Eating seeds during the day H Coming to the bird feeder each morning J Making a chirping sound
H Coming to the bird feeder each morning
*BONUS 200* A student is classifying objects. Answering which question will provide the best evidence that an object is a metal? F What is its mass? G What is its physical state? H Does it conduct thermal energy? J How quickly does it dissolve in water?
H Does it conduct thermal energy?
Which change occurs when lemon juice is mixed with water? F The mass of the lemon juice decreases. G The water becomes a solid. H The lemon juice dissolves and spreads out evenly in the water. J The volume of the water decreases.
H The lemon juice dissolves and spreads out evenly in the water.
Which statement correctly describes how a landform is formed? F. A lake is formed when flowing water carves out the sides of a canyon. G. A mountain range is formed when glaciers slowly move across the landscape. H. A delta is formed at the mouth of a river when flowing water slows and deposits sediment. J. A U-shaped valley is formed when winds pick up and move sediment away from the landscape.
H. A delta is formed at the mouth of a river when flowing water slows and deposits sediment.
Aquatic plants have adaptations that help them live in water. For example, the structures needed for making food are located on the tops of floating plant leaves. This adaptation helps the plants — F. absorb sunlight G. stay anchored H. avoid predators J. capture fish
F. absorb sunlight
A family takes a group picture in a park where bluebonnets are blooming. The family notices that some of the blooms are white and others are blue. The color of the blooms is most likely determined by — F air temperature G the age of the plant H the types of consumers that eat the plant J inheritance from parent plants
J inheritance from parent plants
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
A student plans to make a chart that describes each process in the water cycle. Which sentence should the student use to describe the process of condensation? A Water flows downhill. B Liquid water turns into water vapor. C Polar ice turns into liquid water. D Water vapor collects to form droplets
D Water vapor collects to form droplets
Which statement best describes the processes of weathering and erosion? F. Weathering and erosion are directly responsible for the breakdown of any type of rock into smaller particles and the carrying away of the loose sediments. G. Weathering and erosion are directly responsible for depositing loose sediments on the bottom of the ocean, forming layers of sediment. H. Weathering and erosion are directly responsible for the amount of water in a river that transports sediments to the sea. J. Weathering and erosion are directly responsible for the transportation, deposition, and compaction of loose sediments on the seafloor.
F Weathering and erosion are directly responsible for the breakdown of any type of rock into smaller particles and the carrying away of the loose sediments.
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? A. The fish must absorb carbon dioxide through their gills for energy. B. Both the plants and the fish need carbon dioxide to make their own nutrients. C. The plants need carbon dioxide to make sugar. D. The plants release carbon dioxide into the water to control the water temperature
C. The plants need carbon dioxide to make sugar.
A student raises a parrot from the time it hatches. Which of these behaviors did the parrot most likely learn from living in the student’s home? F The parrot flaps its wings while sitting on a perch. G The parrot has a loud scream that hurts the student’s ears. H The parrot imitates the family dog barking. J The parrot tucks its head under its wing when it sleeps.
H The parrot imitates the family dog barking.
Students observe a glass of ice and water. The glass is dry on the outside. After ten minutes students see drops of water on the outside of the glass. Which statement best explains the students’ observations? A The water vapor in the air changes to a liquid when it touches the cold glass. B The cold water inside the glass rises and then slides down the outside of the glass. C The ice in the glass melted and caused the water to overflow the glass. D The water moved to the outside surface through tiny holes in the glass.
A The water vapor in the air changes to a liquid when it touches the cold glass.
A group of students is given four small cubes of the same size and instructed to place them in a beaker of water. One cube floats to the surface of the water. Two of the cubes float in the middle of the beaker under the surface of the water. The last cube sinks to the bottom of the beaker. Which conclusion is best supported by what the students observed? A Two of the four cubes are soluble in water. B All four cubes have different masses. C Each cube is made of a different type of solid material. D One of the cubes is more dense than the other three.
D One of the cubes is more dense than the other three.
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.
Unlike humans, otters have special flaps that close off their nostrils and ears. These flaps help otters survive in an environment that is — A terrestrial B snowy C windy D aquatic
D aquatic
*BONUS 300* Sediments are transported at different speeds. Which type of sediment transport is the slowest? F Transport by rivers G Transport by winds H Transport by glaciers J Transport by ocean currents
H Transport by glaciers
Deltas are large landforms found along coastlines. What process forms deltas? F Cementation of sediments by rivers G Deposition of sediments by rivers H Erosion of sediments by ocean waves J Deposition of sediments by ocean waves
G Deposition of sediments by rivers
A student recorded the time it took for all the water in a puddle on a sidewalk to evaporate after a rain. Which kind of energy causes water to evaporate? A Light energy from streetlights B Sound energy from passing cars C Thermal energy from the environment D Mechanical energy from nearby streets
C Thermal energy from the environment
Earth continuously rotates on its axis while also moving in an orbit. About how much time does it take for Earth to make one complete rotation on its axis? F 24 hours G 30 days H 60 minutes J 365 days
F 24 hours