Are You Smarter Than An 8th Grader?
Written by Pamela Ferdinand Science Expert
Last updated · 5 min play time
A Greek word for “fire” is associated with the rocks that change due to pressure, temperature or hot fluids. Test and see how much you know about this kind of rock and other 8th grade science facts.
This quiz was expert-written by Pamela Ferdinand. Pamela is a longtime journalist and author who has written about everything from science and politics to books and travel. She has covered hurricanes and plane crashes, elections and terrorism. She has her Bachelor’s in Political Science and Master’s in Journalism and is currently working on a book.
Quiz written by
Pamela Ferdinand8th Grade Quiz Questions
20 Questions · 156.6K Plays · 2 Comments
Question 1
Where can you find your pulse?
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AOn the inner wrist of either arm
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BOn your legs
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COn your palm
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DOn your forehead
On the inner wrist of either arm
To find your pulse, gently place your index and middle fingers on the artery located on the inner wrist of either arm, below your thumb. You should feel a pulsing or tapping against your fingers. Using a seconds timer, count the number of pulses you feel in 30 seconds. Double that number to get your heart rate or pulse for one minute.
Question 2
How is a moon different than a planet?
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AA moon is in orbit around a planet.
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BA moon is less massive than any planet.
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CA moon is smaller than any planet.
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DA moon is unable to have an atmosphere.
A moon is in orbit around a planet.
NASA states that for an astronomical body to be considered a moon, that object must orbit a planet. For a planet to be classified as such, it must meet certain strict criteria set by the International Astronomical Union.
Question 3
A species on the brink of extinction is called _____.
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AExotic
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BEndangered
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CThreatened
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DCommon
Endangered
Endangered species is any species of plant, animal, or other organism that is at risk of extinction because of a sudden rapid decrease in its population or a loss of its critical habitat.
Question 4
What are the regions where the magnetic force exerted by a magnet is strongest?
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AAnodes
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BMagnetic poles
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CElectrodes
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DCathodes
Magnetic poles
The magnetic pole is the area at each end of a magnet where the external magnetic field is strongest. A bar magnet suspended in Earth's magnetic field orients itself in a North-South direction.
Question 5
Which adaptation enables organisms to hide from predators?
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AMimicry
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BEvolution
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CMutation
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DCamouflage
Camouflage
Camouflage varies. Several animal species, including scorpionfish and leaf frogs, can change their appearance to match their surroundings. Others can make themselves appear to be something boring, like the walking stick, which looks very much like a twig.
Question 6
What is the minimum amount of energy necessary for a chemical reaction?
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AActivation energy
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BActivation speed
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CMass
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DMotion ratio
Activation energy
Activation energy, in chemistry, is the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.
Question 7
What does a wave carry?
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ARoots
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BEnergy
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CMass
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DCells
Energy
Waves are said to be an energy transport phenomenon. As a disturbance moves through a medium from one particle to its adjacent particle, energy is being transported from one end of the medium to the other. In a stadium wave, each fan in the bleacher ultimately returns to its original position. A wave is said to involve the movement of a disturbance without the movement of matter.
Question 8
Blood flows back to your heart from the lungs through _____.
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AKidneys
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BPulmonary veins
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CRibcage
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DVentricles
Pulmonary veins
Oxygen-rich blood from your lungs passes through the pulmonary veins into the heart.
Question 9
Where is a proton located?
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AOutside of the cell
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BOutside the nucleus
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CIn the nucleus
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DIn the membrane
In the nucleus
Protons and neutrons are heavier than electrons and reside in the center of the atom, which is called the nucleus. Electrons are extremely lightweight and exist in a cloud orbiting the nucleus.
Question 10
What is the theory that life could spring from nonliving matter?
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ASponteneous generation
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BAsexual reproduction
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CHomeostasis
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DEvolution
Sponteneous generation
Spontaneous generation, the hypothetical process by which living organisms develop from nonliving matter, does not exist. Life produces life.
Question 11
What kind of diagram includes the symbol for an element surrounded by dots?
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AElectron dot diagram
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BBar graph
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CPeriodic table
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DGrid
Electron dot diagram
An electron dot diagram is a method of writing the chemical symbol of an element by surrounding it with dots to indicate the number of valence electrons. Valence electrons are found in an atom's outer shell and are the ones involved in chemical reactions.
Question 12
What is a kind of non-foliated metamorphic rock?
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AErosion
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BMarble
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CSlate
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DLimestone
Marble
Non-foliated metamorphic rocks such as hornfels, marble, quartzite, and novaculite do not have a layered or banded appearance.
Question 13
What is a solar eclipse?
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AWhen the Earth is directly between the moon and sun.
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BWhen the sun is completely blocked by the moon.
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CWhen the moon passes between Earth and the sun, blocking the sunlight from reaching Earth.
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DWhen part of the sun is visible from Earth.
When the moon passes between Earth and the sun, blocking the sunlight from reaching Earth.
During a solar eclipse, the moon casts two shadows on Earth. The first shadow is called the umbra. This shadow gets smaller as it reaches Earth. It is the dark center of the moon's shadow. The second shadow is called the penumbra. The penumbra gets larger as it reaches Earth. People standing in the penumbra will see a partial eclipse. People standing in the umbra will see a total eclipse.
Question 14
What is Earth's outermost sphere?
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AHydrosphere
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BLithosphere
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CBiosphere
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DAtmosphere
Atmosphere
The Earth is a sphere with a roughly 8,000 mile diameter. The thickness of the atmosphere is about 60 miles. If the Earth were the size of a basketball, the thickness of the atmosphere could be modeled by a thin sheet of plastic wrapped around the ball.
Question 15
What is an ionic bond?
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AThe attraction between neutral ions
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BThe attraction between oppositely charged ions
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CThe attraction between neutral atoms
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DThe attraction between similarly charged ions
The attraction between oppositely charged ions
An ionic bond is a chemical attraction or bond formed between ions of opposite charge attract.
Question 16
How many main fins do great white sharks have?
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A3
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B1
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C2
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D5
3
The great white shark has two pectoral fins and a first dorsal fin with a triangle shape.
Question 17
What are rocks that change due to pressure, temperature or hot fluids?
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ACrystal
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BIgneous
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CMetamorphic
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DCement
Igneous
Igneous rocks (from the Greek word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface.
Question 18
What is the layer of an atom where electrons are found?
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ANucleus
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BRibosome
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COrbit
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DBiosphere
Orbit
Electrons can exist only in certain specific locations called orbits. This property, first explained by Danish physicist Niels Bohr in 1913, is a result of quantum mechanics.
Question 19
A reaction between an acid and a base is called ______.
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ANitrification
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BPolymerization
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CNeutralization
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DCatalyzation
Catalyzation
A catalyst brings about a chemical reaction.
Question 20
To find the number of neutrons in an atom, you subtract the number of protons from the _____.
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AAtomic mass
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BAtomic number
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CAtomic symbol
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DElectrons
Atomic mass
The atomic number is a number that is characteristic of a chemical element and represents the number of protons in the nucleus
Comments (2)
We want to hear your feedback! Share your scores and discuss the quiz, but keep it civil.
As a 6th grader about to start junior high, Took the 8th grade quiz and got a D only got 7 wrong.
Onward to high school! I may need tutoring. ?