Earth Science
Life Science
Physical Science
Mixed Up Science 1
Mixed Up Science 2
100
The picture below shows a natural process in which soil and rock are moving quickly down a hill.
What is this process called?
A. hurricane
B. landslide
C. drought
D. earthquake
What is B. landslide
100
Plants and animals are both made of many cells. Which of the following describes one thing that a plant cell has but that an animal cell does not have?
A. cytoplasm to contain structures and chemicals that the cell needs
B. a nucleus to control the activities of the cell
C. a cell wall to give a rigid structure to the cell
D. a cell membrane to control what substances enter and leave the cell
What is C. a cell wall to give a rigid sstructure to the cell
100
The image below shows an electromagnet and a horseshoe magnet.
Which of the following statements best describes the difference between these magnets?
A. The horseshoe magnet is a permanent magnet, but the electromagnet is not.
B. The electromagnet is a permanent magnet, but the horseshoe magnet is not.
C. The horseshoe magnet can attract other magnets, but the electromagnet cannot.
D. The electromagnet can attract other magnets, but the horseshoe magnet cannot.
What is A. The horseshoe magnet is a permanent magnet, but the electromagnet is not.
100
The picture below shows a seawall.
Image courtesy of USGS
Seawalls are sometimes built around cities next to the ocean. They are big structures that slope down from the land to the ocean. A seawall would most likely help reduce the impact of which of the following?
A. shaking from an earthquake
B. lava flow from a volcano
C. waves from a tsunami
D. lightning from a thunderstorm
What is C. waves from a tsunami
100
A levee is a man-made or natural wall that prevents water from entering a certain area.
Image courtesy of National Weather Service
Where would a levee be most helpful?
A. in an area that receives heavy snowfall
B. beside a house that may fall easily
C. in an area where earthquakes occur often
D. beside a river that floods often
What is D. beside a river that floods often
200
A student created a model of a beach using a paint roller pan, which is a tray that has a deep end and a shallow end. The student placed sand in the shallow end of the pan and water in the deep end of the pan. She formed waves by bobbing a water bottle up and down in the water end, as shown in the picture below.
What was the student most likely modeling?
A. how water waves change sand on the beach
B. how sand changes water in the ocean
C. how water waves can be prevented at the beach
D. how sand causes waves in the ocean
What is A.how water waves change sand on the beach
200
Double Jepordy
Salmonella is a kind of microorganism that lives inside many kinds of animals. When humans eat food that contains live Salmonella, they can get diarrhea, abdominal cramps, and fever.
Which of the following statements does this information demonstrate?
A. Most microorganisms are beneficial to humans.
B. Some microorganisms can be harmful to humans.
C. Salmonella is harmful to many animals.
D. Salmonella is beneficial to most animals.
What is B. Some microorganisms can be harmful to humans.
200
The red object shown below produces a force that causes some kinds of metal to be attracted to it.
Image provided by Education Clip Library
with permission from ITN Source
In the picture, this object is being used to pick up many small pieces of metal. The force between the object and these metal pieces is known as _______.
A. friction
B. electricity
C. gravity
D. magnetism
What is D. magnetism
200
The picture below shows cliffs that were formed by flowing water. As the water moved over the rock, some of the rock was slowly broken down over time.
This breakdown of rock by flowing water is an example of _______.
A. erosion
B. deposition
C. condensation
D. weathering
What is D. weathering
200
A model of a plant cell is shown below.
Which of the labeled structures most likely represents the cytoplasm?
A. Y
B. W
C. Z
D. X
What is A. Y
300
A science teacher sets up a stream table filled with sand. He sprays water onto the table. The water carries some of the sand off the stream table.
What kind of process is represented by the movement of the sand?
A. erosion, which is a constructive process
B. deposition, which is a destructive process
C. erosion, which is a destructive process
D. deposition, which is a constructive process
What is C. erosion, which is a destructive process
300
A scientist observes the same Arctic fox over a year. The Arctic fox has white fur during the winter. In the summer, the Arctic fox's fur becomes darker. When it starts to becomes winter again, the Arctic fox's fur turns back to white.
The pictures below show the Arctic fox during the winter (left) and during the summer (right).
Which of these is most likely true?
A. The changes to an Arctic fox's fur do not help the fox survive in its environment.
B. The changes to an Arctic fox's fur cannot be predicted over time.
C. The color of an Arctic fox's fur is not affected by the fox's environment.
D. The color of an Arctic fox's fur is affected by changes in temperature and light.
What is D. the color of an Arctic for's fur is affected by changes in temperature and light.
300
Beth added a piece of metal to a test tube that contained an acid. She observed bubbles forming on the surface of the metal. What does the formation of bubbles in this experiment show?
A. Reaction with the acid caused the metal to burn up.
B. The metal caused the acid to go through a physical change.
C. The metal reacted with the acid to form a new substance.
D. The metal reacted with the acid but did not form a new substance.
What is C. The metal reacted with the acid to form a new substance.
300
The image below shows a type of electroscope. When the ball at the top of the electroscope is touched with a charged rod, some of the charge flows into the two pieces of gold foil inside the jar. The two pieces of gold foil separate from each other because they have the same kind of charge.
What is the electroscope most likely used to test?
A. whether static electricity is built up on an object
B. whether an object is a permanent magnet
C. the amount of electric current flowing through an object
D. the amount of magnetic force an object applies
What is A. whether static electricity is built up on an object
300
The picture below shows several different animals.
All of the animals shown in the picture have backbones. This means that all of the animals belong to which of the following groups?
A. vertebrate
B. mammal
C. invertebrate
D. reptile
What is A. vertebrate
400
The image below shows the delta formed as the Mississippi River enters the Gulf of Mexico.
Image courtesy of NASA/GSFC/METI/ERSDAC/JAROS,
and U.S./Japan ASTER Science Team
Deltas like this one are formed by the _______ of sediment that occurs when a river slows down as it joins the ocean.
A. weathering
B. deposition
C. pressurization
D. erosion
What is B. deposition
400
A model of a plant cell is shown below.
Which of the labeled structures most likely represents a chloroplast?
A. Y
B. X
C. W
D. Z
What is C. W
400
Beth added a piece of metal to a test tube that contained an acid. She observed bubbles forming on the surface of the metal. What does the formation of bubbles in this experiment show?
A. Reaction with the acid caused the metal to burn up.
B. The metal caused the acid to go through a physical change.
C. The metal reacted with the acid to form a new substance.
D. The metal reacted with the acid but did not form a new substance.
What is C. The metal reacted with the acid to form a new substance.
400
A dolphin at an aquarium jumps out of the water and through a hoop that a person is holding. After if jumps through the hoop, the person feeds it.
Which of the following does this best represent?
A. an inherited physical trait
B. an instinct
C. a learned behavior
D. an acquired physical trait
What is C. a learned behavior
400
Owen built a circuit using a battery, a light bulb, and a metal wire. He attached the battery to the light bulb on one side using the metal wire, but the light bulb in Owen's circuit would not turn on.
Why would the light bulb in Owen's circuit not turn on?
A. The wire should be made of plastic instead of metal.
B. The circuit is not closed, so electricity cannot flow through it.
C. The battery should not be attached to the light bulb.
D. The light bulb should be replaced with another battery.
What is B. The circuit is not closed, so electricity cannot flow through it.
500
Water waves at the ocean shoreline can hit and break apart large rocks along the coast and carry away large amounts of loose particles. This weathering and erosion can form large beaches of sand. As erosion continues, it can cause damage to the coast and harm the surrounding environment.
Which of these would best help reduce erosion along a particular shoreline?
A. building a dune fence along the beach
B. removing all of the sand from the beach
C. removing all of the trees from the beach
D. building a line of houses along the beach
What is A. building a dun fence along the beach
500
Angela is studying five different kinds of plants. She classifies the plants into two different groups based on their characteristics. The table below shows how she classifies the plants.
Which of the following best describes the two groups that Angela used to classify the plants?
A. plants that have cells and plants that do not have cells
B. plants that produce flowers and plants that do not produce flowers
C. plants that can reproduce and plants that cannot reproduce
D. plants that produce seeds and plants that do not produce seeds
What is D. plants that produce seeds and plants tht do not produce seeds
500
Marcie placed a tray of water in the freezer. She took the tray out 1 hour later and noticed the it had changed from a liquid to a solid. Which numbered step in the diagram demonstrates what happens to particles of water that Marcie observed?
A. 1
B. 2
C. 4
D. 3
Question 30 .
What is A. 1
500
Mackenzie poured a spoonful of sand into a bottle of water.
Image courtesy of USDA
After a few seconds, the sand had settled at the bottom of the bottle.
Image courtesy of USDA
What formed when Mackenzie combined the sand and the water?
A. a mixture
B. a solution
C. a gas
D. a pure substance
What is A. a mixture
500
The picture below shows several sand dunes located in a desert.
Which of these best describes the process that causes sand dunes to form?
A. Sand dunes are formed by the constructive process of deposition.
B. Sand dunes are formed by the desctructive process of weathering.
C. Sand dunes are formed by the destructive process of erosion.
D. Sand dunes are formed by the constructive process of volcanic eruptions.
What is A. Sand dunes are formed by the constructive process of deposition.