This element is found in our atmosphere and has an atomic number of 1.
What is Hydrogen?
100
This type of mixture looks the same throughout.
What is a homogeneous mixture?
100
Metals and elements with metallic properties are found on this side of the periodic table.
What is the left side?
100
This is what we call the energy generated by the movement of molecules.
What is heat?
100
Atoms combine to form these.
What are molecules?
200
The symbol for this element is O and it has an atomic number of 8.
What is Oxygen?
200
These are made up of two or more elements that have chemically combined.
What is a compound?
200
This is what we call the rows on the periodic table.
What are periods?
200
This instrument, or tool, is used to measure heat.
What is a thermometer?
200
These are the 4 general properties of matter.
What are mass, weight, volume, and density?
300
This element is a metal with the symbol Fe and an atomic number of 26.
What is Iron?
300
This is the name given to a homogeneous mixture in which one substance dissolves into another.
What is a solution?
300
This is what we call columns on the periodic table.
What are groups?
300
This type of heat transfer happens when warmer, faster moving molecules collide with cooler slower moving molecules. The heat passes from warmer to cooler molecules.
What is conduction?
300
These are the 3 phases of matter.
What are solid, liquid, and gas?
400
This is a very reactive element from the Halogen group. Its symbol is F and it has an atomic number of 9.
What is Flourine?
400
This is the name given to a heterogeneous mixture where the parts physically separate (like salad dressing.)
What is a suspension?
400
Elements in the periodic table are arranged by the number of protons in the nucleus. This is what we call that number.
What is an atomic number?
400
This is the amount of energy needed to raise the temperature of 1 gram of water 1 degree Celsius.
What is a calorie?
400
These are positively charged particles found in the nucleus of an atom.
What are protons?
500
The amount of protons and neutrons in the nucleus of an atom of a certain element determine this property.
What is the atomic mass?
500
This is a solution of different metals (copper and tin create bronze, for example.)
What is an alloy?
500
The far right column of the periodic table contains gases that do not easily react with other elements. This is what these gases are called.
What are Noble Gases?
500
This is the measure of the average kinetic energy (energy of motion) in molecules.
What is temperature?
500
Theses are negatively charges particles found around the nucleus of an atom.