INSC 310 – TOPIC #5 (Chemical Reactions)

TEMPERATURE CHANGE FOR HYDROGEN PEROXIDE CHEMICAL REACTION

Scientific Principles:

  • Exothermic Reaction: chemical reaction that releases energy by light or heat
  • Endothermic Reaction: process describes the process or reaction in which the system absorbs energy from its surroundings, usually in the form of heat

1.) What was the point of this activity?

To see how long it would take the yeast to react with the hydrogen peroxide.

2.) Explain how you would introduce this to your class.

Using the same method, but bringing in other reactants such as different water temperatures and acid tablets.

3.) Where do you see a student having difficulty with this?

Not understanding why certain materials make the temperature increase or decrease.

4.) What changes or extensions could you do to this activity?

Possibly getting different cups, and adding food coloring and putting a thermometer in each and seeing the difference in temperature.

 

 

 

 

 

 

BUILDING MOLECULES IN A CHEMICAL REACTION

Scientific Principles:

  • Molecules: a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in chemical reaction
  • Chemical Reaction: Process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction

1.) What was the point of this activity?

Understanding that by adding or removing one atom, you could change the entire element.

2.) Explain how you would introduce this to your class?

Same method with the colors. I feel as though it is a great way to grab their attention. I would just make sure I had multiple options like M&Ms or skittles maybe.

3.) Where do you see a student having difficulty with this?

Not understanding where to attach and detach the atoms to a new molecule.

4.) What changes or extensions could you do to this activity?

Adding in different candies to represent the different atoms and having them learn the molecules based on memorization of the color.

 

 

Leave a Reply

Your email address will not be published. Required fields are marked *