sentences
stringlengths
9
187
label
int64
0
1
a prism refracts light
1
white light is made of all colors of visible light combined
1
refracting sunlight / light causes sunlight / light to split into different colors
1
a rainbow is formed by refraction of light by separating light / splitting light into all different colors
1
sunlight is made of all colors in the rainbow
1
a light wave enters a denser medium
1
refraction is when light passes from one medium to another medium
1
if a medium is denser , then the medium will be another medium
1
a prism refracts light
1
a prism is made of glass
1
rain droplets are a kind of water droplets
1
scattering light decreases visibility
1
clouds are made of water vapor / rain droplets
1
water droplets scatter light
1
fog is a kind of stratus cloud on the ground
1
x-rays can pass through some parts of the body
1
the medical industry uses medical technology
1
doctors sometimes need an image of inside the body to diagnose
1
doctors belong to the medical industry
1
mechanical energy is used to move something by animals
1
joules j are an si unit used for measuring mechanical energy
1
an example of an object with kinetic energy is an object in motion
1
a ball is a kind of object
1
rolling is a kind of motion
1
down the hill is a kind of direction
1
a metal ball is a kind of ball
1
a ball is a kind of object
1
rolling is a kind of motion
1
moving changes potential energy into kinetic energy and heat energy
1
potential energy of an object is determined by the mass and the height of the object
1
a roller coaster is a kind of object
1
the height of a roller coaster car is known
1
a soccer ball is going upward after being kicked
1
as the altitude of an object increases , the potential energy of the object will increase
1
going upwards means increasing the altitude
1
a ball is a kind of object
1
a soccer ball is a kind of ball
1
substances are made of molecules
1
temperature is a measure of kinetic energy of molecules
1
water is a kind of substance
1
a guitar is a kind of musical instrument
1
as matter vibrates harder / faster , the volume of the sound produced will increase
1
a string is a kind of object made from matter
1
as a string of a musical instrument is plucked harder , the pitch produced will not change
1
as a string of a musical instrument is plucked harder , the string will vibrate harder / faster
1
there is a sound wave with large amplitude
1
as the amplitude of a sound wave increases , the amount of energy in that sound wave will increase
1
there is a sound wave with small amplitude
1
volume is a property of sound and includes ordered values of quiet / normal / loud
1
as the amplitude of a sound wave increases , the volume of that sound wave will increase
1
a canyon wall is a kind of surface
1
echo is when sound reflects off of a surface
1
a person speaking is a source of sound
1
echo is when sound reflects off of a surface
1
cave walls are a kind of surface
1
vibrating matter can produce sound
1
objects are made of matter
1
a rubber band is a kind of object
1
snapping a rubber band can cause the matter in the rubber band to vibrate
1
a source of something emits / produces / generates / provides that something
1
vibrations are a source of sound
1
plucking a string can cause that string to vibrate
1
a rubber band is a kind of object
1
objects are made of matter
1
vibrating matter can produce sound
1
tapping two objects together causes the particles in those objects to vibrate
1
a source of something produces that something
1
vibrations are a source of sound
1
glass is a kind of object
1
a fork is a kind of object
1
the molecules in the wood begin to vibrate from the force of the book
1
molecules vibrating can cause sound
1
sound is made of sound waves
1
sound energy is transferred by vibrational waves
1
a rattle is a kind of vibration
1
a thunder has intense sound energy
1
a window is a kind of object
1
intense sound energy can move objects
1
matter is made of particles
1
air is a kind of matter
1
vibration is a kind of motion
1
sound requires matter to travel
1
something requires motion to travel
1
someone plays the flute
1
vibrations are a source of sound
1
if a flute is played, then the air in the flute will vibrate
1
spreading around is similar to spreading in all directions
1
sound wave is a kind of wave
1
a wave is formed by the vibration of the source spreading around from the source
1
sound requires matter to travel
1
a vacuum has no matter in it
1
blowing air into a whistle causes air to vibrate inside the whistle
1
sound waves spread in all directions away from their source
1
vibrations are a source of sound
1
if the particles are farther away from each other, then the vibrations of particles will spread slower
1
sound travels through vibrations of particles
1
if the particles are closer to each other, then the vibrations of particles will travel faster
1
particles in gas are the farthest away from each other among gas, liquid, and solid state of matter
1
particles in solid are closest to each other among gas, liquid, and solid state of matter
1
iron is a kind of solid
1