Introduction to Matter
Measuring Matter
Changes in Matter
Energy and Matter
Misc. Key Terms
100
The study of the properties of matter and how matter changes.
What is Chemistry?
100
Your weight is a measure of the force of _____ on you.
What is gravity?
100
A change in state, such as from a solid to a liquid or from a liquid to a gas, is an example of this.
What is a physical change?
100
This is the energy of matter in motion.
What is kinetic energy?
100
This type of change releases energy.
What is an exothermic change?
200
Every form of matter has these two kinds of properties.
What are physical properties and chemical properties?
200
This is the measurement of the amount of matter in an object.
What is mass?
200
An example of this is when iron metal combines with oxygen from the air to form the substance iron oxide, which you may know as rust.
What is a chemical change?
200
When you stretch a rubber band, your action gives this form of energy to the rubber band.
What is potential energy?
200
This is a measure of the average energy of random motion of particles of matter.
What is temperature?
300
When atoms combine, they form this.
What is a chemical bond?
300
For this reason, scientists prefer to measure matter by its mass rather than its weight.
Unlike weight, mass does not change with location.
300
The fact that matter cannot be created or destroyed in any physical or chemical change is known as this.
What is the law of conservation of mass?
300
This form of energy travels through space as waves.
What is electromagnetic energy?
300
In this type of mixture, you can see the different parts.
What is a heterogeneous mixture?
400
This is made of two or more substances that are together in the same place but are not chemically combined.
What are mixtures?
400
This is the formula used to calculate density.
What is mass/volume
400
This kind of change is a change in which energy is taken in.
What is an endothermic change?
400
Electrolysis involves this form of energy.
What is electrical energy?
400
This change in matter produces one or more new substances.
What is a chemical change?
500
These chemicals are plant based and can be broken down more quickly, therefore they are safer for the environment.
What are agrochemicals?
500
This is the density of a block of wood that has a mass of 200g and a volume of 250cm3.
What is 0.80g/cm3?
500
This is the total energy of all of the particles in an object.
What is an thermal energy?
500
This happens to chemical energy during a chemical change.
During a chemical change, chemical energy may be changed to other forms of energy.
500
These are the 6 forms of energy.
What are kinetic, potential, chemical, electromagnetic, electrical and thermal energy?
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