Life Science
Physical Science
Scientific Method
Space Science
Earth Science
100
Structures in the human body work together to perform specific functions. The diagram below shows the organization of structures found in the human body.
A picture of which of the following structures belongs in the box above?
A. Cell
B. Organ
C. Organelle
D. Tissue
Tissue
100
Matthew has six cubes of different materials. Each cube has a mass of 10 grams (g). Matthew sorts the cubes into two groups using one physical property.
Which physical property did Matthew most likely use to sort the cubes into two groups?
A. density
B. magnetism
C. melting point
D. electrical conductivity
D. electrical conductivity
100
The following statements were taken from the procedures of four different investigations.
The statement from which investigation is an example of repetition?
A. Investigation 1
B. Investigation 2
C. Investigation 3
D. Investigation 4
D. Investigation 4
100
The points labeled on the chart below represent the approximate size of Earth, the Milky Way, the Moon, and the Sun. The approximate size of the Solar System is also shown.
Which point on the chart best represents the approximate size of the Sun?
A. W
B. X
C. Y
D. Z
C. Y
100
The water level at the beach changes during the day. What causes the different water levels?
A. Earth’s revolution
B. the Moon’s rotation
C. Earth’s magnetic field
D. the Moon’s gravitational pull
D. the Moon’s gravitational pull
200
The cell theory applies to all organisms, including the five shown below.
Which of the following statements describes how these organisms are an example of cell theory?
A. The organisms have cells that lack a nucleus
B. The organisms are made of one or more cells
C. The cells of the organisms undergo photosynthesis
D. The cells of the organisms are identical to each other
B. The organisms are made of one or more cells
200
Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr) are in the same column in the periodic table. Why are these elements in the same column in the periodic table?
A. They have similar properties.
B. They have atoms of the same size.
C. They have the same number of protons.
D. They have the same number of neutrons.
A. They have similar properties.
200
Two types of models that can be used to show details of the structures of cells are shown.
Which of the following describes a limitation of the drawing but NOT the clay model?
A. It does not represent the main parts of a cell.
B. It does not contain the correct number of nuclei.
C. It cannot represent a living cell, since a true cell is three-dimensional.
D. It cannot represent a living cell, since the cytoplasm should be in constant motion.
C. It cannot represent a living cell, since a true cell is three-dimensional.
200
One physical property of a star is apparent magnitude. Which of the following is used in determining the apparent magnitude of a star?
A. the constellation the star is in
B. the distance the star is from Earth
C. the number of times the star rotates
D. the number of prominences the star makes
B. the distance the star is from Earth
200
Deforestation occurs when large areas of trees are cut down. Which of the following impacts on the environment would result from deforestation?
A. increased erosion
B. colder temperatures
C. decreased carbon dioxide
D. greater oxygen production
A. increased erosion
300
A certain reptile species is a herbivore and exists only on an isolated island. Which of the following would most likely result in the extinction of the reptile species over a period of twenty thousand years?
A. The reptile species produces many offspring with many unique traits, and the vegetation remains constant.
B. The reptile species produces few offspring with some unique traits, and the vegetation remains constant.
C. The reptile species produces few offspring with no unique traits, and the vegetation changes quickly.
D. The reptile species produces many offspring with some unique traits, and the vegetation changes slowly.
C. The reptile species produces few offspring with no unique traits, and the vegetation changes quickly
300
Sunlight is composed of energy that is visible to humans and energy that is not visible to humans. Which statement describes how the visible energy from the Sun is different from the nonvisible energy?
A. It travels at a different speed through space.
B. It travels a different distance through space.
C. It has different wavelengths.
D. It has different amplitudes.
C. It has different wavelengths.
300
A timeline of some models of atoms throughout history is shown. These models have contributed to the formation of the atomic theory.
Which statement best summarizes the development of the atomic theory over time?
A. The discovery of new evidence resulted in changes to the atomic theory.
B. Advancements in atomic models proved the atomic theory was accurate.
C. The atomic theory was modified with the discovery of every new element.
D. Changes in atomic models showed that the atomic theory was based on opinion.
A. The discovery of new evidence resulted in changes to the atomic theory.
300
The surface of Mercury has many more craters than the surface of Earth has. Which of the following statements best explains why Mercury has many more craters than Earth has?
A. Mercury rotates faster than Earth does.
B. Mercury has a smaller mass than Earth has.
C. Mercury is much closer to the Sun than Earth is.
D. Mercury has a thinner atmosphere than Earth has.
D. Mercury has a thinner atmosphere than Earth has.
300
The oldest rock formation identified on Earth is found on the shoreline of Hudson Bay in Canada. This rock formed 4.28 billion years ago. Which information does a scientist need to most accurately determine the age of a rock?
A. the percentage of each mineral that makes up the rock
B. the thickness of younger rock layers that cover the rock
C. the amount of each radioactive element present in the rock
D. the amount of weathering present on the surface of the rock
C. the amount of each radioactive element present in the rock
400
In order to maintain homeostasis, the systems of the human body work together to keep a constant internal temperature. Which of the following best describes how the human body responds in a cold environment?
A. The digestive system produces more hormones to warm the body.
B. The nervous system signals the muscles of the muscular system to contract and warm the body.
C. The circulatory system delivers less carbon dioxide to the muscular system, resulting in stiffening of the muscles.
D. The skeletal system produces more blood cells that circulate through the blood vessels, increasing the warmth of the body.
B. The nervous system signals the muscles of the muscular system to contract and warm the body.
400
Erin makes a sugar solution by adding 1 teaspoon of sugar at a time to 100 mL of water until no more sugar dissolves. Then she makes a salt solution by adding 1 teaspoon of salt at a time to 100 mL of water until no more salt dissolves. She observes that she adds fewer teaspoons of salt before it stops dissolving. What does she conclude about the solubility of sugar and salt in water?
A. They have no solubility
B. They have the same solubility
C. Salt has a higher solubility than sugar
D. Sugar has a higher solubility than salt
C. Salt has a higher solubility than sugar
400
Keesha did an experiment to study the rate of photosynthesis in the water plant Elodea. She placed a piece of Elodea in a beaker of water and set the beaker 10 centimeters (cm) from a light source. Keesha counted the bubbles released from the plant every minute for five minutes (min). She repeated the process two more times. First, she moved the light to 20 cm from the beaker, and then she moved the light to 30 cm from the beaker. Keesha’s setup and data are shown below.
What is the outcome variable (dependent variable) in this experiment?
A. the number of bubbles produced
B. the type of plant placed in the beaker
C. the amount of time the bubbles were counted
D. the distance of the light source from the plant
A. the number of bubbles produced
400
The arrows in the picture below show several ways heat is transferred from the Sun as it strikes sand on the surface of a beach.
Which arrow shows
convection?
A.1
B.2
C.3
D.4
D.4
400
In which layer of Earth are the convection currents that directly result in tectonic plate motion found?
A.1
B.2
C.3
D.4
B.2
500
The gene for curled ears (C) is dominant over the gene for straight ears (c). The picture below shows a cat with curled ears (Cc) and a cat with straight ears (cc).
What percent of the offspring are expected to have curled ears as a result of a cross between the cats shown?
A.100%
B.75%
C.50%
D.25%
C.50%
500
Mrs. Heter added a room-temperature copper (Cu) cube and an aluminum (Al) cube that she just removed from the freezer to a beaker of boiling water.
She left the cubes in the water for three hours. Which of the following describes a heat flow that took place during those three hours?
A. from the aluminum cube to the beaker
B. from the copper cube to the boiling water
C. from the aluminum cube to the copper cube
D. from the boiling water to the aluminum cube
D. from the boiling water to the aluminum cube
500
Scientific Knowledge may change as new evidence or information is discovered. Which of the following would NOT be a result of new scientific research and information?
A.Binomial nomenclature is assigned to a recently identified plant species
B.An endangered monkey species is put in a reserve for protection from extinction
C.A newly discovered chemical element will be added to the periodic table of the elements
D.A nonnative plant species will begin to reproduce rapidly after being introduced into a swap ecosystem
D. A nonnative plant species will begin to reproduce rapidly after being introduced into a swap ecosystem
500
Mangrove trees are common to the Florida Everglades. The tree roots serve as a place for freshwater oysters to attach when the tide is high, as shown in the picture below. The oysters are protected from predators when attached.
The oysters do not harm the trees nor do they provide any benefit to the trees. Which of the following relationships is most similar to the relationship between the mangrove trees and the oysters?
A. African ants living in acacia trees feed on leaf-eating insects found on the tree.
B. Spider crabs are camouflaged by the green-brown algae growing on their shells.
C. A whale is unaffected by the attached remora fish feeding on the whale’s leftover food.
D. Bees fly from one flowering plant to another gathering nectar and pollinating the flowers.
C. A whale is unaffected by the attached remora fish feeding on the whale’s leftover food.
500
The climate of an area can be different from its weather. Which of the following statements describes the climate of an area?
A. There should be heavy rains tomorrow morning.
B. The rains next week are expected to cause some flooding.
C. The average temperature from 1930–1996 was 23°C (74°F).
D. The high temperature on September 4, 2009, was 32°C (89°F).
C. The average temperature from 1930–1996 was 23°C (74°F).