Show:
Electricity, Light, and Heat
Physical Changes
Electrictiy and Magnetism
Chemical Changes
Electricity, Sound, and Motion
100
Electricity is most commonly used to produce this.
What is light
100
These are the five changes of state.
What is sublimation, condensation, melting, freezing, and evaporation.
100
The area of force around a magnet is called this.
What is magnetic field.
100
Chemical changes always involve the production of these (2 words.
What is new substances.
100
A motor transforms electricity into this.
What is motion.
200
This kind of a lightbulb produces light by heating a filament.
What is incandescent.
200
The sugar is put into water, it does this.
What is dissolves.
200
Magnetismis the property of attracting small pieces of this.
What is iron.
200
Forest fires is where huge trees seem to disappear in minutes but they have actually not disappeared. Instead, the materials in the trees have been changed into other these.
What is materials.
200
Inside a motor is a this (2 words) and a this, which can rotate.
What is permanent magnet and electromagnet.
300
This is a type of light bulb that has a glass tube that contains gases.
What is fluorescent.
300
Physical changes taht are permanent are called this.
What is non-reversible changes.
300
The magnetic forces produced by eletricity is this.
What is electromagnetism
300
The change of when metals that contain iron get what is called this.
What is rust
300
Sound is created when something does this, or moves back and forth quickly.
What is vibrates.
400
LEDs stand for this.
What is light emitting diodes.
400
A piece of woodcut into pieces is a physical change because it is still this.
What is wood.
400
An electromagnet has a source of electricity and a this.
What is core.
400
When iron rusts, it combines with this to form a new substance.
What is oxygen.
400
When the button of a doorbell is pressed, the circuit is this.
What is closed.
500
LEDs are tiny solid light bulbus that are very this (2 words)
What is energy efficient.
500
You can reverse the process of sugar in water by this process.
What is evaporation.
500
Electromagnets used to develop high-speed trains are called this.
What is magnetic levitation or maglev trains.
500
These are the five ways to tell if a substance has undergone a chemical change.
What is a new colour, heat,light, sound given off, bubbles of gasformed or new odour, a solid material forms in a liquid, or the change is difficult or impossible to reverse.
500
The parts of how a doorbell uses electricity contains the bell, the arm, the button, the electromagnet, and the battery, and the this.
What is hammer.