Atoms
8.P.8.5 + 8.P.8.6
8.P.8.5 + 8.P.8.6
Nature of Science 8.N.1.6
EM Spectrum 7.P.10.1 + 8.E.5.11
Behavior of Waves 7.P.10.2 + 7.P.10.3
Space
8.E.5.1 + 8.E.5.10
8.E.5.1 + 8.E.5.10
Spheres of the Earth
6.E.7.4 + 6.E.7.9
6.E.7.4 + 6.E.7.9
100
Which of the following statements is correct about matter?
A.Elements combine to form compounds.
B.Compounds combine to form elements.
C.Elements combine to form atoms.
D.Compounds combine to form atoms.
A. Elements combine to form compounds
100
What type of evidence are you using if you conduct an experiment and draw conclusions that relies on gathering and evaluating evidence?
A.deductive evidence
B.subjective evidence
C.empirical evidence
D.inductive evidence
C. empirical evidence
100
Which waves on the electromagnetic spectrum have the lowest frequency and longest wavelength?
A.gamma rays
B.visible light waves
C.microwaves
D.radio waves
D. Radio waves
100
You may see something under water and reach into the water to pick it up. However, the object is not where you thought it would be.
What property of light is responsible for this?
A.absorption
B.transmission
C.refraction
D.reflection
C.refraction
100
The table shows distances between two objects or places in kilometers. Kilometers, however, are not the units that scientists usually use to measure all the distances shown in the table.
The distance between which two objects or places would BEST be measured in light years?
A.Boston and Los Angeles
B.Our Sun and the nearest star
C.Earth's maximum distance from Saturn
D.Earth's surface and an orbiting satellite
B.Our Sun and the nearest star
100
Which set of the spheres on Earth would BEST represent animal species in a forest?
A.atmosphere, geosphere, cryosphere
B.geosphere, hydrosphere, atmosphere
C.biosphere, geosphere, atmosphere
D.cryosphere, biosphere, and hydrosphere
C.biosphere, geosphere, atmosphere
200
Which is the smallest unit of matter?
A.compound
B.mixture
C.atom
D.element
C. Atom
200
Ptolemy, believed that all objects in space, including the sun, revolved around Earth. Nicolaus Copernicus made observations showing that Earth and other planets revolved around the sun, which refuted Ptolemy’s argument. What is this an example of?
A.Scientific knowledge starts as a scientific theory and becomes a scientific law.
B.Scientific knowledge is communicated between scientists.
C.Scientific knowledge always stays the same.
D.Scientific knowledge changes as a result of new evidence.
D.
Scientific knowledge changes as a result of new evidence.
200
The diagram below shows a portion of the electromagnetic spectrum.
Which type of wave should be placed in the shaded box?
A.Visible lightB.Long waveC.Short waveD.Non-visible light
A. Visible light
200
Jimmy told his friend about the rainbow he saw just after a rainstorm. Jimmy then explained to his friend how a rainbow forms.
What was Jimmy’s explanation?
A.The intensity of light increased as the waves passed through tiny droplets of water.
B.Light traveled faster after the rainstorm because of the moisture in the air.
C.Tiny droplets of water reflected the light waves that struck them.
D.The light waves were refracted by moisture in the air.
D.The light waves were refracted by moisture in the air.
200
Space exploration has advanced our knowledge of the universe. Which space journey would take the longest amount of time?
A.a trip from Earth to the Sun
B.a trip from Earth to the Moon
C.a trip from Earth to a star in the constellation Centaurus
D.a trip from Earth to Neptune, the farthest planet in our solar system
C.a trip from Earth to a star in the constellation Centaurus
200
According to the following graph, the coast line of Antarctica is receiving increased snow fall as well as ice melt over the past 10 years.
What would be the MOST LIKELY reason for this occurrence?
A.Decreased surface temperature produces less ice, resulting in less snow fall in the region.
B.Increased surface temperature evaporates more ice, resulting in less snow fall in the region.
C.Decreased surface temperature produces more ice, resulting in more snow fall in the region.
D.Increased surface temperature evaporates more ice, resulting in more snow fall in the region.
D.Increased surface temperature evaporates more ice, resulting in more snow fall in the region.
300
Which of the following is a compound?
A.carbon
B.gold
C.oxygen
D.water
D. Water
300
Brandon noticed that hummingbirds in his yard visited all the flowers, but especially seemed to like the red trumpet-shaped ones. He read that they use the nectar in the flowers for food. He assumed that since the parents were eating nectar, they must feed their babies nectar as well. To his surprise, he saw hummingbirds bringing small insects and spiders to feed the young hummingbirds. How does this new evidence affect his original assumption?
A.He should change his original assumption that they only feed their babies nectar.
B.He should be able to stick to his assumption that the babies eat nectar since he thought that first.
C.He should believe what he read in the book and disregard what he witnessed.
D.He should ask other people what they think and agree with the majority.
A. He should change his original assumption that they only feed their babies nectar.
300
Some night vision goggles use infrared waves to show objects in the dark. Radar uses radio waves and microwaves to detect objects.
Which statement explains the difference between these two devices?
A.Night vision goggles uses longer wavelengths of radiation than radar.
B.Night vision goggles uses shorter wavelengths of radiation than radar.
C.Only night vision goggles depend on detecting electromagnetic radiation.
D.Only radar depend on detecting electromagnetic radiation.
B.Night vision goggles uses shorter wavelengths of radiation than radar.
300
The pitch of a sound wave describes how low or high it sounds to the human ear. Pitch and frequency are related.
Which of the following BEST describes this relationship?
A.The higher the frequency, the higher the pitch of the sound.
B.The higher the frequency, the lower the pitch of the sound.
C.The lower the frequency, the higher the pitch of sound.
D.The lower the frequency, the lower the speed of sound.
A.The higher the frequency, the higher the pitch of the sound.
300
Which of the following statements does NOT support how scientists have built upon knowledge over time?
A.We build upon prior knowledge from the past.
B.Many early science discoveries were foundational.
C.Some of the early science has been proven to be not valid.
D.Only current discoveries are important as we move forward.
D.Only current discoveries are important as we move forward.
300
Karen is teaching her younger brother about interactions on Earth. She tells him that the geosphere and hydrosphere are in constant interaction. What evidence could she use to support her statement?
A.Rain falls on the ground and runs along the surface of the ground, eroding soil and depositing it into a nearby lake bed.
B.The Sun's energy evaporates water which rises as water vapor and condenses as clouds.
C.Tree roots weather rock by breaking it into smaller pieces.
D.Moist soil allows Earthworms to absorb oxygen through their skin.
A.Rain falls on the ground and runs along the surface of the ground, eroding soil and depositing it into a nearby lake bed.
400
Which of the following is the primary purpose of collecting empirical evidence in a scientific investigation?
A. To determine which scientific theory is correct
B. To support or refute a hypothesis based on observable data
C. To make the results of the investigation more creative
D. To avoid the need for logical reasoning
B. To support or refute a hypothesis based on observable data
400
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 has different wavelengths.
B.It travels at a different speed through space.
C.It has different amplitudes.
D.It travels a different distance through space.
A.It has different wavelengths.
400
Which of the following materials would sound travel fastest through?
A.a wooden desk
B.a sponge
C.a beaker of water
D.the air in the room
A.a wooden desk
400
Which of the following technological innovations is described correctly?
A.The telescope allows us to examine microorganisms with great detail that were once invisible to us.
B.Fiber optics allows large amounts of information to be transmitted around the world in just a few seconds.
C.Computers allow us to peer into space and view distant stars and their exoplanets.
D.Microscopes can handle huge amounts of data and can be used in all fields of science.
B.Fiber optics allows large amounts of information to be transmitted around the world in just a few seconds.
400
Which feature of the stratosphere helps to protect Earth from the Sun’s ultraviolet radiation?
A.carbon dioxide
B.nitrogen
C.ozone
D.water vapor
C. Ozone
500
What can you predict from an element’s location in the Periodic Table?
A.its chemical symbol
B.its chemical name
C.its properties
D.when it was discovered
C. its properties
500
Imagine a scientist finds conflicting results in an experiment about plant growth under artificial light. Which approach best integrates logical reasoning and creativity to resolve the conflict?
A. Ignoring the conflicting data and focusing on results that match the hypothesis
B. Designing a new experiment to test additional factors affecting plant growth
C. Using imagination to guess what caused the conflicting results without further testing
D. Concluding that artificial light does not affect plant growth
B. Designing a new experiment to test additional factors affecting plant grown
500
Which of the following statements about the electromagnetic spectrum is NOT true?
A.Long wave radiation has high energy.
B.Short wave radiation has high energy.
C.The electromagnetic spectrum includes visible light.
D.The energy in the electromagnetic spectrum is related to its wavelength and frequency.
A.Long wave radiation has high energy.
500
Which of the following materials would light travel fastest through?
A.plastic
B.air
C.water
D.Light waves travel the same in each one.
B.air
500
Astronomers observe that the sun appears much larger and brighter than other stars in the night sky. Using this observation, which of the following hypotheses best explains the difference, and how could this be tested further?
A. The sun is the largest and hottest star in the universe; this could be confirmed by comparing its size to all known stars.
B. The sun’s proximity to Earth makes it appear larger and brighter; this could be tested by analyzing the apparent brightness of stars at varying distances.
C. The sun emits a special type of light not found in other stars; this could be tested by examining the sun’s spectrum for unique elements.
D. The sun is moving closer to Earth while other stars are stationary; this could be tested by measuring the sun’s movement relative to Earth.
B. The sun’s proximity to Earth makes it appear larger and brighter; this could be tested by analyzing the apparent brightness of stars at varying distances.
500
The peak of Mount Everest is at an elevation of almost 9 km, entering the lower stratosphere. Why would a mountain climber need an air tank to breathe when climbing Mt. Everest?
A.Air is less dense at this altitude.
B.The air is too cold to breathe safely at this altitude.
C.The air is too dense to breathe safely at this altitude.
D.The air is too warm to breathe at this extreme altitude.
A.Air is less dense at this altitude.