Cover of the printable tornado book, How Strong Is a Tornado?
Grades 2–5

Tornado Book for Kids: The EF Scale

How strong is a tornado? This free printable book climbs the EF scale one step at a time. Each page shows the same house, tree and car after a stronger tornado, from a few lost shingles at EF0 to a bare concrete floor at EF5.

Download the book (PDF)
14 book pages on 7 sheets of paper. Color. Free.

What is in the book

The book starts with what a tornado is and how one forms. Then it gives each level of the EF scale its own page, with the wind speed, a wind meter and something a child already knows that moves that fast. It ends with tornado records, three real tornadoes, a page on staying safe and a short quiz.

Tornado book page 1: Cover
1. Cover
Tornado book page 2: What Is a Tornado?
2. What Is a Tornado?
Tornado book page 3: How a Tornado Forms
3. How a Tornado Forms
Tornado book page 4: The EF Scale
4. The EF Scale
Tornado book page 5: EF0
5. EF0
Tornado book page 6: EF1
6. EF1
Tornado book page 7: EF2
7. EF2
Tornado book page 8: EF3
8. EF3
Tornado book page 9: EF4
9. EF4
Tornado book page 10: EF5
10. EF5
Tornado book page 11: Tornadoes by the Numbers
11. Tornadoes by the Numbers
Tornado book page 12: Tornadoes to Remember
12. Tornadoes to Remember
Tornado book page 13: Staying Safe
13. Staying Safe
Tornado book page 14: Check What You Know
14. Check What You Know

How to make the book

  1. Print the 7 sheets on one side, in color. Black and white works too.
  2. Cut each sheet in half on the dashed line.
  3. Stack the pages in order, with the cover on top.
  4. Staple down the left side.

EF scale chart

These are the wind speeds used in the book. A tornado gets its rating after the storm, from the damage it left.

RatingWind speedWhat it can do
EF0Weak65–85 mph105–137 km/hPeels shingles, snaps branches
EF1Weak86–110 mph138–177 km/hStrips roofs, breaks windows, tips mobile homes
EF2Strong111–135 mph179–217 km/hTears off roofs, uproots big trees, lifts cars
EF3Strong136–165 mph219–266 km/hDestroys whole floors of houses, tips trains
EF4Violent166–200 mph267–322 km/hFlattens well-built houses, throws cars
EF5Violentover 200 mphover 322 km/hSweeps houses off their foundations

A note for teachers and parents

This book is honest about what tornadoes do. The EF pages show a house being damaged and then destroyed, with no people in the pictures. One page names three real tornadoes and says how many people each one killed. The page after it is about warnings and where to take shelter.

Where the numbers come from

Wind speeds are the Enhanced Fujita scale used by the United States National Weather Service. The count of 60 tornadoes rated F5 or EF5 since 1950 follows the Storm Prediction Center list and includes the 2025 tornado near Enderlin, North Dakota. Tornado counts, shares and travel speeds are from NOAA’s National Severe Storms Laboratory.

Figures for the 1925 Tri-State Tornado, the 1999 Bridge Creek and Moore tornado, the 2011 Joplin tornado and the 2013 El Reno tornado are from National Weather Service records. The 1999 radar reading was first worked out as 301 miles per hour and later as 321, so the book says about 300.