sentences stringlengths 9 187 | label int64 0 1 |
|---|---|
melting means a substance changes from a solid into a liquid by increasing heat energy | 1 |
as state of matter changes , mass will not change | 1 |
gold melts | 1 |
as the class of a rock changes , the mass of the rock will stay the same | 1 |
a rock changes from sandstone into quartzite | 1 |
a quartzite is a kind of metamorphic rock | 1 |
sandstone is a kind of sedimentary rock | 1 |
class is a property of a rock and includes values of sedimentary / metamorphic / igneous | 1 |
matter in the solid phase has definite shape | 1 |
an eraser is a kind of solid | 1 |
definite shape means the shape of an object stays the same when moved to different spot | 1 |
tearing means changing a whole into pieces | 1 |
a paper bag is ripped into pieces | 1 |
ripping means tearing | 1 |
a piece of an object is smaller in size than the entire object / whole object | 1 |
magnifying makes seeing small things easier | 1 |
seeing small things with bare eye is difficult | 1 |
hair is thin | 1 |
texture of an object can sometimes be told by looking at the object | 1 |
a wooden block is pushed across a sheet of sandpaper | 1 |
an object being pushed across another object causes their surfaces to move against each other | 1 |
friction causes the temperature of an object to increase | 1 |
friction occurs when two object 's surfaces move against each other | 1 |
smooth is a kind of texture | 1 |
texture is a property of objects and includes ordered values of smooth or rough | 1 |
matter in the solid phase has definite volume | 1 |
one sample is a solid sample of aluminum | 1 |
matter in the liquid phase has definite volume | 1 |
one sample is a liquid sample of aluminum | 1 |
water is in the gas state , called water vapor / steam , for temperatures between 373 / 212 / 100 and 100000000000 k / f / c | 1 |
water is in the liquid state , called liquid water , for temperatures between 273 / 32 / 0 and 373 / 212 / 100 k / f / c | 1 |
earth's atmosphere contains water vapor | 1 |
arctic environments contain ice | 1 |
the oceans are located on earth | 1 |
earth's atmosphere is located on earth | 1 |
the oceans contain liquid water | 1 |
arctic environments are located on earth | 1 |
water is in the solid state , called ice , for temperatures between 0 / -459 / -273 and 273 / 32 / 0 k / f / c | 1 |
air is a kind of gas | 1 |
matter in gas phase takes the shape of the entire container | 1 |
the item takes the shape of the entire container | 1 |
matter in the gas phase has variable volume | 1 |
matter in the gas phase has variable shape | 1 |
matter with variable volume and shape expands to fill the shape and size of its entire container | 1 |
air is a kind of gas | 1 |
a bubble is made of pockets of gas trapped inside a liquid or solid | 1 |
soap bubbles are made of air trapped inside soap liquid | 1 |
a compound is a kind of substance | 1 |
matter in the liquid phase has variable shape | 1 |
matter in the liquid phase has definite volume | 1 |
indefinite means variable | 1 |
substances are made of matter | 1 |
matter in the liquid phase has definite volume | 1 |
if something has a definite volume , then its volume will not change when transferred into a different container | 1 |
particles in a liquid flows past each other | 1 |
the particles in the substance are close and able to flow past each other | 1 |
the substance has a variable shape | 1 |
matter in the liquid phase has variable shape | 1 |
particles in a liquid are close to each other | 1 |
seeing requires light | 1 |
reading requires seeing | 1 |
a light bulb generates visible light when it is turned on | 1 |
an airplane is fast in speed | 1 |
an airplane is used for moving people to far away places | 1 |
an ocean is a kind of body of water | 1 |
a airplane is used for moving products across bodies of water | 1 |
a ship is used for moving products across bodies of water | 1 |
a cake is a kind of baked product | 1 |
baking is when a human makes food by adding heat | 1 |
transportation technology is used for moving people / products | 1 |
transportation technology is a kind of system for moving people and products | 1 |
a microscope is a kind of optical tools for observing small things | 1 |
a microscope is used to see small things by making them appear bigger | 1 |
biologists study small things such as cells | 1 |
a telescope is a kind of optical instrument for observing celestial objects | 1 |
tool means instrument | 1 |
making scientific discoveries requires observing | 1 |
astronomers study celestial objects | 1 |
a telescope is used for observing celestial objects by astronomers | 1 |
killing microorganisms in food can be used to extend the shelf life of that food | 1 |
companies irradiate some fruits and vegetables | 1 |
irradiating food can be used to kill existing microorganisms in the food | 1 |
cheap means low in cost | 1 |
making products for cheaper has a positive impact on manufacturing | 1 |
a mass production manufacturing system makes products more cheaply than a custom manufacturing system | 1 |
something that is used for communication increases communication | 1 |
a weather report is a kind of information | 1 |
a radio is used for communication | 1 |
communication is used to share information | 1 |
a computer is used for communication / finding information | 1 |
radio transmitter emits radio waves | 1 |
radio station broadcasting is a source of radio waves | 1 |
a source of something emits that something | 1 |
an engineer constructs a prototype from wood | 1 |
the engineer needs a tool to smooth the surface of the wooden prototype | 1 |
sandpaper is used to smooth the surface objects | 1 |
a prototype is a kind of object | 1 |
sandpaper is a kind of tool for smoothing objects | 1 |
pliers are made of two levers for gripping | 1 |
pliers are a kind of hand tool | 1 |
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