sentences stringlengths 9 187 | label int64 0 1 |
|---|---|
food is a kind of chemical energy | 1 |
green plants perform photosynthesis to get food | 1 |
a redwood tree is a kind of tree | 1 |
a giant redwood tree is a kind of redwood tree | 1 |
photosynthesis means green plants convert solar energy to food | 1 |
energy transformation means one kind of energy changes into another kind of energy | 1 |
lighting a candle causes that candle to burn | 1 |
burning is similar to combustion | 1 |
a candle is made of wax | 1 |
wax contains chemical energy | 1 |
combustion means fire converts chemical energy into light energy and heat energy | 1 |
fuel is a source of mechanical energy for cars to move | 1 |
if an object is not moving it does not have any motion to counter | 1 |
a car is moving on a level road | 1 |
if an object has 0 mechanical energy, then the object will stop moving | 1 |
the car runs out of fuel | 1 |
if one surface is moving on another surface then those surfaces are touching | 1 |
friction acts to counter the motion of two objects when their surfaces are touching | 1 |
if something is decreased and there is no source of that something to provide more of that something, then that something will decrease to 0 | 1 |
countering the motion of a moving object means decreasing the mechanical energy of the moving object | 1 |
sonar usually is used for locating objects underwater | 1 |
sonar is used to find the location of an object by sound waves | 1 |
electromagnets generate magnetic fields | 1 |
a electromagnet is formed by attaching an iron nail wrapped in a copper wire to a circuit | 1 |
creating a simple circuit requires a wire / battery | 1 |
wire was looped several times around an iron nail | 1 |
the wire's ends were connected to a battery | 1 |
moving a coil of wire in the magnetic field generates electrical current | 1 |
a metal loop is similar to a coil of wire | 1 |
a battery converts chemical energy into electrical energy for powering electrical devices | 1 |
a radio is a kind of electrical device | 1 |
a flashlight emits light | 1 |
a kind of is similar to a form of | 1 |
a flashlight is a kind of battery-operated device | 1 |
electrical devices convert from electrical energy into other forms of energy | 1 |
batteries convert chemical energy to electrical energy | 1 |
battery is the source of electrical energy for battery-operated device | 1 |
a flashlight is a kind of electrical device | 1 |
light is a kind of energy | 1 |
batteries convert chemical energy to electrical energy | 1 |
a flashlight is a kind of electrical device | 1 |
a kind of is similar to a form of | 1 |
a flashlight emits light | 1 |
electrical devices convert from electrical energy into other forms of energy | 1 |
a flashlight is a kind of battery-operated device | 1 |
light is a kind of energy | 1 |
battery is the source of electrical energy for battery-operated device | 1 |
a wind turbine converts wind energy into mechanical energy for a generator | 1 |
a generator converts mechanical energy to electrical energy | 1 |
hammering an object requires movement | 1 |
an example of mechanical energy is an object in motion | 1 |
a nail is a kind of object | 1 |
an electric circuit is a vehicle for moving electrical energy from the source to the electrical device | 1 |
electricity is a kind of electrical energy | 1 |
a light bulb is a kind of electrical device | 1 |
an electrical device requires electricity to turn on | 1 |
when a switch in a simple series circuit is closed , electricity will flow through the circuit | 1 |
plastic is an electrical insulator | 1 |
plastic tape is made of plastic | 1 |
an electrical insulator prevents the flow of electricity | 1 |
light is a kind of energy | 1 |
sound is a kind of energy | 1 |
heat is a kind of energy | 1 |
if something converts one kind of energy into other kinds of energy then that something originally stores that energy as the first kind of energy | 1 |
a firecracker converts chemical energy into sound energy and light energy and heat energy | 1 |
gas is a kind of state of matter | 1 |
water is a kind of substance | 1 |
liquid is a kind of state of matter | 1 |
heat energy can change the state of matter | 1 |
heat is a kind of heat energy | 1 |
liquid is a kind of state of matter | 1 |
heat energy can change the state of matter | 1 |
solid is a kind of state of matter | 1 |
melting means a substance changes from a solid into a liquid by increasing heat energy | 1 |
an ice cube is a kind of solid | 1 |
heat is a kind of heat energy | 1 |
a car engine is a source of heat | 1 |
heat energy can change the state of matter | 1 |
ice is a kind of solid | 1 |
liquid is a kind of state of matter | 1 |
melting means a substance changes from a solid into a liquid by increasing heat energy | 1 |
solid is a kind of state of matter | 1 |
ice is a kind of solid | 1 |
melting means a substance changes from a solid into a liquid by increasing heat energy | 1 |
heat energy can change the state of matter | 1 |
heat is a kind of heat energy | 1 |
solid is a kind of state of matter | 1 |
the sun is a source of radiation / heat called sunlight | 1 |
liquid is a kind of state of matter | 1 |
an x ray is a kind of electromagnetic wave | 1 |
ultraviolet light is a kind of electromagnetic energy | 1 |
electromagnetic energy travels as electromagnetic waves | 1 |
a block is a kind of object | 1 |
mechanical energy exerted by an object can be used to push or pull another object | 1 |
a person is a kind of object | 1 |
pedals are a kind of object | 1 |
pedalling a bicycle requires moving the pedals in a circular motion | 1 |
mechanical energy can cause objects to move | 1 |
a vehicle is a kind of object | 1 |
an example of mechanical energy is an object in motion | 1 |
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