Unit 7 - Nuclear Reactions

In previous unit we learned that during a chemical reaction, mass (matter) must be conserved. This week we will study a different type of reaction-- the nuclear reaction -- in which a some of the mass is not conserved but converted into massive amounts of energy. As we study nuclear reactions, we will examine the concept of radioactivity, develop an understanding of radioactive "half-life," and discuss the role of nuclear energy with its practical application and potential problems.

SPS3: Students will distinguish the characteristics and components of radioactivity.
a. Differentiate among alpha and beta particles and gamma radiation.
b. Differentiate between fission and fusion.
c. Explain the process of half-life as related to radioactive decay.
d. Describe nuclear energy, its practical application as an alternative energy source, and its potential problems.

Instruction will be a mix of direct instruction, class discussion, worksheets, and supporting videos.

Assignment 1: Nuclear Reactions vs. Chemical Reactions - mini-lecture. Take notes and fill-in the table at the top of the Nuclear Reactions worksheet as you. (Click here to see worksheet).

To view power point version of mini-lecture, click here.

Assignment 2: 3 Kinds of Nuclear Reactions - mini-lecture: Radioactive Decay, Fission, and Fusion. Take notes. Fill-in appropriate parts in the Nuclear Reactions worksheet.

To view power point version of mini-lecture, click here.

Watch the following short videos entitled the "3 Kinds of Nuclear Reactions," "Types of Radioactive Decay," Fission and the Chain Reaction" and "Nuclear Fusion" to help summarize what you have learned about nuclear reactions so far.









Assignment 3: Radioactive Half-life -- mini-lecture. Take notes.

Click here for power point version of the lecture.

Watch the following short video that explains how the radioactive half-life of carbon is used to date very old objects.



Assignment 4: Complete practice problems on radioactivity and radioactive half-life. (Click here to see worksheet) Use your notes if necessary. Afterwards, sit down with your instructor and go over the results together.

Quiz: Nuclear Reactions. It will include questions about the three basic types of nuclear reactions, the three kinds of radioactive decay, and radioactive half-life.