Houghton Mifflin provides over 400 classroom activities and lesson plans, arranged either by Curriculum Areas and Grade Levels or by choosing a Theme.

If you head directly to the activity page on their web site at http://www.eduplace.com/search/activity.html you are provided with the following selection criteria:
 

   The Education Place Activity Search is a searchable database
                      of 400+ original K-8 classroom activities and lesson plans
                                    for teachers and parents.

                You may search for activities by both curriculum area and grade level.
                         (You can select more than one item from each list)
                                  or browse activities by theme.
 

I find that I am attracted to themes, so I think I will take a look at browse activities by theme
 
 

Browse
by Theme

Let's take a look at what kind of theme you can create from Disasters

Disasters

Catastrophe versus Accident -- You Decide
Science; Grades 3-6
Students will learn the difference between accidents and catastrophes.

Disaster Drill Guide
Social Studies; Grades 2-4
In this activity, students will create an emergency drill guide that will help them to know what to do in the event of an emergency at school.

Disaster Shapes
Art/Science; Grades 2-4
Some natural elements of disasters exhibit distinct shapes that students will recognize. In this activity, students will make a mobile that will allow them to take a closer look at these shapes.

Monster Waves
Math/Science; Grades 4-6
In this activity, students will build a tabletop village and use it to visualize the relative height and affects of gigantic waves called tsunamis.
 

OK. It's the Disaster Drill Guide for me.
 

Disaster Drill Guide

Social Studies Activity

In this activity, students will create an emergency drill guide that will help them know what to do in the event of an emergency
at school.

WHAT YOU NEED

     Cassette tape recorders and tapes (optional)
     Age-appropriate magazines, newspapers, and nonfiction books that focus on disasters
     Poster boards (optional)
     Colored pencils or markers, crayons

WHAT TO DO

   1.Brainstorm with students a list of potential emergencies that could happen as a result of a disaster such as a flood, an earthquake, a tornado, a hurricane, or an explosion. Then discuss what emergency drills are and why they are necessary.

   2.Divide the class into small groups and explain that each group will make a disaster drill guide that will focus on any of the emergencies discussed. (Encourage each group to focus on a different disaster.)

   3.Suggest the following ways for students to gather information for their guides: Interview members of the school staff (principal, teachers, secretaries, librarian, custodians, nurse). Find out what role they play in conducting drills and preparing for possible disasters. Encourage groups to write interview questions (in advance) that explore the staff members' responsibilities in preparation for and during an emergency drill. Some students may find it easier to tape record their interviews. Invite a local fire fighter and/or police officer to class to talk about the different kinds of emergency drills that students might need to know about. Again, students should prepare some questions in advance. Read what others have done to prepare for different kinds of disasters. Some good sources are age-appropriate student magazines (National Geographic World ) , newspapers, and nonfiction books.

   4.Have students choose a format for their guide. They may wish to create a guide in the form of a large poster or make a booklet complete with pictures and a map that shows escape routes.

   5.Encourage students to make copies of their guides and pass them out to other classes. They may need to explain the guides to younger students. Students may also wish to take home a copy of their guides to share with their families.

TEACHING OPTIONS

     Have students use their guides to practice appropriate emergency drills.
     Have students make an emergency drill guide for use at home.

Take a look at the activities outlined at this site. Their are probably many activities appropriate for your classroom.