Chemical Reactions - The Science Spot (Page 3 of 3) in pdf

Chemical Reactions - The Science Spot Page 3

Teacher Notes:

My students have difficulty identify the different types of chemical reactions. I use this worksheet after

we have already discussed balancing equations to explore the differences between synthesis,

decomposition, single replacement, and double replacement reactions. A PowerPoint presentation is also

available for use on a SmartBoard or other interactive whiteboard device. If you do not have access to

this technology, you might consider printing the individual slides on transparencies and project them

using a standard overhead projector.

To start the lesson, the students watch a movie about chemical reactions. The "

Physical Science Series:

movie is available on United Streaming if you have a subscription.

Chemical Reactions"

A PowerPoint for this lesson is available at

After the movie, I discuss each type of chemical reaction and have the students complete the chart. We

also add letters and colors in the third column to help them focus on what happens in each equation by

comparing the reactants and products.

For #2, the students use colored pencils to circle the atoms on each side of the reaction. They use the

same color for each atom to help them see what happens and then classify each using the code listed.

NOTE: If they have not already completed the Balancing Equations worksheet on my website, you can

have them balance each equation after they are done.

T. Trimpe 2010

Chemical Reactions - The Science Spot Page 3