Melting candle wax is an example of this type of change because no new substance forms.
→ What is a physical change?
This element causes the yellow glow seen in many candle flames.
→ What is sodium?
Oxygen is classified as this type of element on the periodic table.
→ What is a nonmetal?
Candle wax is made mostly of compounds containing only these two elements.
→ What are carbon and hydrogen?
Burning a Hanukkah candle is an example of this type of reaction.
→ What is combustion?
Burning a candle is this type of change because new substances are produced.
→ What is a chemical change?
Carbon, found in candle wax, belongs to this category of elements.
→ What is a nonmetal?
Menorahs are often made of metals because metals conduct this well.
→ What is heat?
This compound is formed when candle wax burns completely.
→ What is carbon dioxide?
This law explains why mass is not destroyed when a candle burns.
→ What is the Law of Conservation of Mass?
One piece of evidence that a candle burning is a chemical change is that this is produced.
→ What is heat/light/gas/new substances?
This subatomic particle determines which element an atom is.
→ What is a proton?
Elements that react easily with oxygen are often found in this area of the periodic table.
→ What are metals?
Water is considered a compound because it is made of this.
→ What are two or more elements chemically bonded?
A candle goes out when covered because it loses access to this.
→ What is oxygen?
Oil burns slowly in candles mainly because of this property.
→ What is its high boiling point (low volatility)?
This element is required for combustion to happen in a Hanukkah candle.
→ What is oxygen?
This group of elements would not support a candle flame because they rarely react.
→ What are noble gases?
Sprinkling salt into a candle flame produces color because of this ion.
→ What is a sodium ion?
During combustion, atoms in candle wax do this.
→ What is rearrange to form new substances?
A metal menorah does not burn because metals have this physical property.
→ What is a high melting point?
Oxygen is considered this in the candle-burning reaction.
→ What is a reactant?
Aluminum is a good menorah material because it is lightweight and this.
→ What is durable / corrosion-resistant / conductive?
An ion differs from a neutral atom because it has this.
→ What is a charge?
A burning candle demonstrates chemical change because it releases this.
→ What is energy (light and heat)?