Chemistry

 

chem·is·try  

n. pl. chem·is·tries

1. The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecular systems.
2. The composition, structure, properties, and reactions of a substance.


 

Watch this video demonstrating an experiment in chemical reactions. Dr. Rebecca Kelly is detailing reactions when different forms of household products are combined. This experiment is very simple to complete and is interesting to young children. Remember to take notes, the good Dr. will have a list of all the necessary items you will need.

Facts:  Chemical reactions can be placed in one of six categories.

(1) Combustion: A combustion reaction is when oxygen combines with another compound to form water and carbon dioxide.

(2) Synthesis: A synthesis reaction is when two or more simple compounds combine to form a more complicated one.

(3) Decomposition: A decomposition reaction is the opposite of a synthesis reaction.

(4) Acid-Based: This is a special kind of double displacement reaction that takes place when an acid and base react with each other.

(5) Single Displacement: This is when one element trades places with another element in a compound.

(6) Double Displacement: This is when the anions and cations of two different molecules switch places, forming two entirely different compounds.

Challenging Question: Can you give an example of one type of chemical reaction?

Here’s one, what takes place inside a cars motor when fuel and air mix?

Answer: Combustion!

 

Note to parents: Please watch over your little ones when doing any experiments with chemicals.The substances used in this demonstration are just household items but combined with other chemicals can be hazardous. Always wear safety glasses, gloves and long sleeves. Although Dr. Kelly did not wear any eye protection in this video she is a trained professional with many years of experience. Have fun but safety first!