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Facts of Matter
Periodic Table
Acids, Bases and pH
Transferring Energy
Transferring Energy II
100
The particles orbit the nucleus of an atom and have a negative charge.
What are electrons?
100
The atomic number of an element represents how many of these particles are in the nucleus of each atom of that element.
What are protons?
100
The acidity or alkalinity of a substance is measured using this scale.
What is the pH scale?
100
The law that states energy cannot be created or destroyed, only transferred or transformed is known as this.
What is the Law of Conservation of Energy?
100
To have a working electric circuit, you would need an electrical device, wires to conduct charges, and this item.
What is a voltage source?
200
Acording to this law, when substances interact to form new substances, the total amount of matter doesn't change.
What is the Law of Conservation of Matter?
200
The members of this category of elements tend to be solid, gray or silver in color, have high melting points and are good conductors.
What are metals?
200
This rating on the pH scale indicates that a substance is neither acidic or basic.
What is 7?
200
The speed of a wave can be calculated by multiplying these two measurements together.
What are frequency and wavelength?
200
For a sound wave, loudness would increase as this characteristic increases.
What is amplitude?
300
Materials that are made of two or more substances but are not chemically combined are known by this term.
What are mixtures?
300
The most reactive metals on the periodic table, these elements are sometimes known by their column number: 1.
What are alkali metals?
300
These substances react with most metals and are known to be corrosive.
What are acids?
300
You have this when an energy transformation occurs in a confined space where no energy can escape.
What is a closed system?
300
This electrical characteristic is a measure of the degree to which current is opposed in a circuit.
What is resistance?
400
An example of this type of property is the inability to react with other substances.
What is a chemical property?
400
The most nonreactive of all elements, these substances are found in the column 18 on the table.
What are noble gases?
400
According to the pH scale, the strongest alkaline substance would have this rating.
What is 14?
400
This type of energy is transferred when objects push or pull one another over a distance.
What is mechanical energy?
400
In this type of circuit, current and device efficiency decrease as new devices are added.
What is a series circuit?
500
This is a substance represented by a chemical formula. It contains more than one atom and cannot be broken down by physical means.
What is a compound?
500
This category of elements only has 7 members. That's because their properties are not quite metals and not quite nonmetals.
What are metalloids?
500
Using one of the terms weak, moderate or strong - a substance with a rating of 2 would be considered this type of substance.
What is a strong acid?
500
Electromagnetic, acoustic, mechanical and thermal energies can all by tranported from one place to another by this type of disturbance.
What is a wave?
500
Whenever energy is transformed or transferred, some of it will change to this form due to friction and be lost into the environment.
What is thermal energy(heat)?