Posts Tagged books

Interview with Author Cindy Jenson-Elliot: The Doomsday Detectives

The Doomsday Detectives book

I always love bringing attention to new nonfiction books for kids and this is a GOOD one! I’m delighted to welcome author Cindy Jens0n-Elliott to the Mixed-Up Files Blog today.

Cindy Jensen-Elliott

 

She will be talking about her new book, The Doomsday Detectives

The Doomsday Detectives book

JLG Gold Standard

 

Junior Library Guild Gold Standard Selection 2025

 

 

* “Packed with explanations of scientific terminology and methods of operation, this detailed and compelling book is a superb guide for curious STEM-focused readers. An outstanding resource that depicts the winding and complex journey of scientific exploration.” — Kirkus Reviews, starred review

* “This fascinating, informative volume highlights not only the people at the center of the discovery but the scientific processes by which they came to their conclusions….Perfect for kids who want to go all-in on dinosaurs.” — Booklist, starred review

 

 

 

 

JS: Welcome to the blog. I really loved this book. Let’s start with the first question: What drew you to writing about these two scientists?

Cindy J-E:   In summer 2017, I was driving to my first day at a new full-time teaching job when my agent, Stefanie Sanchez von Borstel, called to give me some updates: a rejection of a manuscript I had recently sent to her, and an opportunity. Cheryl Klein, an editor at Lee and Low Books, was seeking a picture book family biography of Walter and Luis Alvarez, the two scientists behind the discovery of evidence that an asteroid was responsible for the Cretaceous extinction. While I was intrigued – I LOVED my college geology classes and I LOVED teaching science — I was also feeling really overwhelmed. I was making a big career switch from holding five simultaneous but flexible low-paying part-time jobs in high-end communities, to holding one full-time teaching job in a low-income community. I was also switching from teaching grades 1 – 8 science and outdoor education to teaching middle school English to three different grades. As an introvert, full-time teaching has always been challenging for my psyche, especially when my kids were young. So I was especially nervous about the return to the classroom. However, writing, even in my most successful years writing for educational test companies, magazines, newspapers and publishers, has never been enough to pay the bills. But I could feel a spark of curiosity igniting.

I told Stefanie I would read Walter Alvarez’s book, T-Rex and the Crater of Doom, and see if I wanted to write a picture book biography. How long could that take, right? Over the next few months, I read Alvarez’s book before bed and on weekends, and contemplated how I might tackle a biography. By Christmas, I realized that this would have to be much more than a picture book biography. This story, involving everything in science from Paleontology and Earth Science to Astrophysics, was a science mystery much more complex than a simple biography suggested. For children to understand how scientists solved the mystery of the Cretaceous extinction, they would need to know the science that led to the discovery. I began working on a book proposal for a longer middle grade nonfiction book, and we submitted it to Cheryl in early 2018.

 

JS: How did you decide to turn this book from a “normal” biography focusing on the scientists, to a journey of discovery? 

Cindy J-E: By summer, Cheryl had rejected my first proposal — it’s hard to remember why — but she offered to let me rewrite it, along with a sample chapter, if I wanted to make another attempt. I spent the summer and fall of my second year at the school researching and writing a second draft of the proposal. This time around, I structured it as a long-form science mystery, and developed a structure that included elements I knew my students would appreciate — graphic elements, expository elements, narrative family biography and a narrative of science discovery. I would start it with the discovery of dinosaurs and the idea of extinction, and proceed to the discovery of the crater. In the proposal, I included samples of each type of writing – comic script, expository science, science and biographical narrative — as well as a 20-page outline. We turned the proposal in again and waited. Six months later – a contract!

 

JS: Whose idea was it to use graphic novel-like insets to explain the more complex science? (I think this is brilliant, by the way).

Cindy J-E: Thank you! It was my idea to use graphic nonfiction to explain some of the science through graphic narrative, and it came about because by 2019, I had been segued over to teaching science in my school instead of English, possibly because, in my very traditionally-minded school (at that time) I was teaching students to write comic narratives in English class, in addition to essays. Prepping for science teaching, however, is a lot more work than prepping for English class, so I asked my school if I could teach two grades instead of three, and two types of science – 6th grade Earth Science and 8th grade Physical Science – instead of three (Life Science). At this particular school, this was considered part-time teaching – two preps instead of three – and working 7 -2 instead of 7-4. The best way to learn science, for me, is to teach it and to have to write about it. So having my writing and teaching focused on the same topics was helpful. I wrote the book I wanted my students – 98% of whom were English-language learners – to use to learn science, so graphics were a great resource for them.

 

JS: Can you give us a couple of  intriguing fun facts that you learned while writing this book? 

Cindy J-E: Instead of  intriguing facts, I will give you some amazing facts and experiences I had in researching and writing this book.

Intriguing fact #1: I hadn’t realized how recently, in the grand scheme of things, dinosaurs were discovered at all, AND long it took people to realize that extinction was even possible. When there were parts of Earth that were still uncharted by Europeans, folks thought that maybe dinosaurs were hiding out in some deep, dark pocket of Earth.

This also points to my own realization of how often new and alternative hypotheses are ridiculed, often for decades, until enough data comes in. I tried to include a variety of voices and viewpoints with respect.

Intriguing fact #2: When I was scripting the first and last comics, I had written sound effects for the voices of dinosaurs. Then I came across a study by a scientist who studies animal sounds and the acoustics of their skulls. His work suggested that T-Rex probably sounded more like a hunting horn than a roar.

 

JS: What would you like readers to get out of this book?

Cindy J-E: I would like readers to understand the great joy, responsibility and gift science is to our world. As I say at the end, “Scientists – geologists, paleontologists, physicists, and every other researcher in every field – never stop digging for data, collecting evidence and retesting results. The scientific practices of asking questions, tossing around ideas with colleagues from around the world (who often become friends), developing a hypothesis, and testing to see if it is actually true are the eternal pleasures of doing science. Science presents a never-ending opportunity to learn and grow, and to expand the knowledge of civilization. Scientists don’t work for themselves; they work for everyone – everyone on the entire planet, now and in the future – to bring the truth to light and make it accessible and available to the whole world.” (p. 186)

I want readers to understand what the scientific process really is, how it is used, and how our knowledge changes as we gather more information. Science is not static. It is growth.

JS: How would you like teachers/librarians to use this book?

Cindy J-E: I would like this book to be used by teachers who want to collaborate across the curriculum – science and the humanities – as a class book to teaching middle school Earth science curriculum. Students can identify science processes used as the mystery is solved. They can teach students to use comics to explain their ideas.

Thanks so much for being on our blog today, Cindy. If you want to learn more about The Doomsday Detectives or Cindy, please go to her website: https://cindyjensonelliott.com/

 

STEM Tuesday– Radio/UV Waves and Applied Physics — Writing Tips and Resources

Catch a Wave!

(This post was originally a STEM Tuesday Spin-Off guest post for the Middle Grade Book Village blog. It fits with this month’s theme of Radio/UV Waves – Applied Physics so I’m recycling it for my Writing Tips & Resources post.)

In STEM Tuesday Spin-Off, we look around at the things in life we often take for granted. We peer behind the curtain, search underneath the hood for the STEM principles involved, and suggest books and/or links to help build an understanding of the world around us. The common, everyday thing will be the hub of the post, and the “spin-offs” will be the spokes making up our wheel of discovery. As our former STEM Tuesday Writing Tips & Resources partner, Heather L. Montgomery often says, we’ll “Go deep!” on a common subject and take a look at its inherent STEM components. 

Today, we will take a closer look at something that is always with us and affects the life of the average 8-14-year-old.

Waves!

Shalom Jacobovitzderivative work: Brocken Inaglory ([[User talk:Brocken Inaglory|talk]]) [CC BY-SA]

The Hub: Waves

Waves, dude! They’re awesome. Riding a wave, either on a board or by body, is exhilarating. Throwing a rock into a calm lake or pond to watch the wave patterns is pretty entertaining and tossing in another rock or two to watch the wave patterns interact takes it to a whole new level. 

Wave motion is pretty cool. The waves created by a sheet flapping in the breeze or the waves generated with a length of rope or a Slinky toy give us hours of entertaining observation. Waves provide both satisfaction from their aesthetic and their physical principles. In short, waves rock!

As cool as the above waves are, there are multitudes of waves in constant motion around us every day and we don’t even need to hit the beach to enjoy them. We notice some of these waves, while others we don’t notice. Yet these waves profoundly affect our modern life every second of every day.  

In today’s Catch a Wave Edition, we’ll talk about these sound and electromagnetic waves and introduce some spin-off resources to learn more and dig deeper into STEM. There are waves all around us, light waves, sound waves, radio waves, microwaves, other electromagnetic waves, and, may I add, waves of middle-grade academic enthusiasm.

Spoke 1: Sound Waves

Sound waves are mechanical waves created by the vibration of a source. The vibrations create longitudinal waves consisting of regions of high pressure and low pressure called compressions and rarefactions that mimic the source vibration. A sound wave must travel from one place to another in a medium and cannot move through a vacuum. 

Sound wave in a cylinder. via Wikimedia Commons.

Transverse Waves

The remaining Spin-Off Spokes are all transverse waves of the electromagnetic spectrum. One of the amazing things about electromagnetic waves is they are a single physical phenomenon that can be separated into types by the characteristic properties associated with their frequency and wavelength.

This image has an empty alt attribute; its file name is em-spectrum-nasa_-wikimedia-commons.jpg

This image has an empty alt attribute; its file name is longitudinal-and-transverse-waves-1.png

Electromagnetic wave shape is the more familiar wave shape of crests and troughs, called a sine wave. Transverse waves of the EM spectrum travel at the speed of light in a vacuum.

Spoke 2: Radio Waves

We are all familiar with radio. Turn it on, crank it up, and dance down the hallway on the way to the lunchroom. Radio rocks! Let me tell you, that box that plays our favorite tunes is only a mere sliver of the pure awesomeness of radio waves. Radio waves are the do-it-all, blue-collar, workman of the physical world. Sound, data, and video can be pulsed (modulated) onto a radio wave carrier, transmitted great distances through an antenna, and received by another antenna. A receiver then separates (demodulates) the original signal from the carrier wave and transmits it to an output device.

Let’s say I want to play my wicked new surf guitar solo to a friend who lives six hours away. First, I create the sound into a microphone by playing my new jam. The microphone transforms the vibration of the longitudinal sound wave from the guitar strings into an electromagnetic wave which then gets pulsed/modulated onto a radio wave or microwave. The message on the carrier wave is sent by my antenna great distances at the speed of light until it reaches my friend’s antenna. The antenna catches my message, and the electromagnetic wave is decoded/demodulated from the carrier and sent to a speaker where it is transformed back into a sound wave. Next thing you know, my friend is rocking out to my surf guitar solo. All is good in the world.

A low-frequency message signal (top) may be carried by an AM or FM radio wave.

Look around your school or classroom, there are probably devices on the ceiling or on a table all around that are constantly modulating and demodulating data for your computers and Wi-Fi networks. MOdulating and DEModulating, MOdulating and DEModulating, MOdulating and DEModulating. (Isn’t “modem” an exceptional portmanteau of “modulator-demodulator”?) Did you know that’s what your modem does? Radio waves and microwaves are the carriers of modern life. Technology doesn’t go anywhere without them.

Spoke 3: Microwaves

Microwaves do more than make popcorn or heat up that frozen burrito. With higher energy and higher frequency wave than a radio wave, a microwave can penetrate obstacles that radio waves can’t. Some of the non-food functions of microwaves overlap with the functions of radio waves and the daily utility of these may surprise you. Wi-Fi, Bluetooth, GPS, satellite radio, amateur radio, weather radar, and some broadcasting and communications transmissions, to name a few, are all microwaves. See what I mean? Microwaves make life better, and the bag of popcorn popped in two minutes is truly a bonus.

A satellite dish receives satellite television over a Ku band 12–14 GHz microwave beam from a direct broadcast communications satellite in a geostationary orbit 35,700 kilometers (22,000 miles) above the Earth.

Spoke 4: Infrared Waves

Infrared is such a cool sounding word, science fiction level cool in my book. In reality, though, it simply means “below red”. Infrared waves are often associated with heat, especially the longer wavelength end of the spectrum. These heat waves are given off by fire, heat lamps, and the sun. On the opposite end, the shorter infrared wavelengths don’t give off much heat but do function in one of mankind’s greatest inventions—the remote control! Automatic doors, heat sensors, and night-vision technology are just a few ways we interact with infrared waves in our daily life. Now, where did I put that TV remote?

IR thermography helped to determine the temperature profile of the Space Shuttle thermal protection system during re-entry.

Spoke 5: Visible Waves

We are all familiar with the visible spectrum of electromagnetic waves. They’re the ones we can see and account for the rainbow of colors detected by our eyes. The different frequencies of visible waves are either absorbed or reflected by an object. If the reflected waves are at the longer wavelengths of the visible spectrum, 625-740 nm, the light is red. If the reflected waves are at the shorter end of the spectrum, 380-450 nm, the reflected light is violet. Everything we can see and the multitude of colors originate from the electromagnetic waves of the visible spectrum. You may also have heard about fiber-optic cables used for communication. Fiber optics contain light waves that carry data much like radio and microwaves. Without the visible wave spectrum, we would spend most of our time in the dark.

Spoke 6: Ultraviolet Waves

If the word “infrared” wasn’t cool enough for you, may I present “ultraviolet”? In reality, it’s just an awesome way to say “beyond violet”. Besides the level of word coolness, ultraviolet waves themselves are pretty dang awesome. UV waves are emitted by high-temperature objects, like stars, and help astronomers learn more about how the galaxies are put together. Just as “beyond violet” suggests a deeper shade of purple, ultraviolet waves have their own dark side. UV rays emitted by our sun are the cause of sunburns and prolonged exposure to ultraviolet radiation can cause cancer by changing our DNA.

Of course, there are also the UV rays of lower frequencies emitted from a blacklight bulb which we all know make the school dances spectacular events for white clothing clad individuals.

NASA image of Mira’s bow shock & hydrogen gas tail in ultraviolet, rendered in blue-visible light.

ROUGE WAVES?

There are two additional wave types in the electromagnetic spectrum. These waves, however, are ones you don’t want to expose yourself to regularly. 

X-rays are high-energy waves naturally produced by high-temperature sources, like the sun’s corona. We may be more familiar with medical imaging equipment that uses the power of X-rays to view bone structure. There’s a good reason the radiology technician wears a lead apron for protection while performing X-rays—too much exposure to X-rays can cause serious health problems.

The second waves to avoid are gamma waves. Gamma waves are such high frequency/short wavelength they can pass through the space of a single atom! Unfortunately, they can also destroy living cells. Gamma waves are mainly formed by high-energy objects in space and are absorbed by the Earth’s atmosphere. Lightning, nuclear explosions, and radioactive decay are sources on Earth that can produce gamma rays.

Franquet T., Chung J.H. [CC BY (https://creativecommons.org/licenses/by/4.0)]

Wrap-Up

The final waves needing recognition are the waves of middle-grade enthusiasm and, in particular, the waves of middle-grade enthusiasm for STEM. Keep riding the STEM wave and asking questions about how our world works.

Hopefully, I’ve given you at least six good reasons to appreciate the physical phenomenon of waves. They may not be the easiest thing in the world to understand but they are fascinating.  

Next time you switch on a radio or the TV or get your sprained ankle x-rayed at the hospital, think about all the invisible and visible waves swirling around us every second of every day. Appreciate the STEM-tastic wave and remember this:

Be curious. 

Think about the world around you.

Figure out what makes it tick and work to make it a better place.

CATCH A WAVE!!!

Mike Hays has worked hard from a young age to be a well-rounded individual. A well-rounded, equal-opportunity sports enthusiast, that is. If they keep a score, he’ll either watch it, play it, or coach it. A molecular microbiologist by day, middle-grade author, sports coach, and general good citizen by night, he blogs about sports/life/training-related topics at www.coachhays.com and writer stuff at www.mikehaysbooks.comTwo of his science essays, The Science of Jurassic Park and Zombie Microbiology 101,  are included in the Putting the Science in Fiction collection from Writer’s Digest Books. He can be found roaming Bluesky under the guise of @mikehays64.bsky.social and @MikeHays64 on Instagram.


The O.O.L.F Files

This month on the Out Of Left Field (O.O.L.F.) Files, we take a trip around the internet to further investigate the awesomeness of radio and ultraviolet waves. 

National Radio Astronomy Observatory 

The University of Central Florida’s Astronomy coursebook chapter, The Electromagnetic Spectrum.

NASA’s Hubblesite

Studious Guy

Middle School, Experiment with Radio Waves Science Projects

GCSE Physics

  • Radio Waves #65

  • Visible and UV Light #67


STEM Tuesday– Spy Science and Cryptography– Book List

From ancient ciphers to modern-day digital encryption techniques, this month’s book list explores the science, technology, engineering, and math that make code-making (and code-breaking) possible.

 

 

 

 

The Enigma Girls written by Candace Fleming

It all began with a letter in an unmarked envelope received by ten teenage girls. It was World War II, and the British were desperate to break the German Enigma code. Instead of turning to cryptographers, these women were responsible for Bletchley Park, a well-kept secret operating under the code name Station X. Award winning author Candace Fleming spins an engaging narrative based on true facts.

 

 

Unbreakable: The Spies Who Cracked the Nazis’ Secret Code by Rebecca Barone

Rebecca Barone jumps across the European continent to trace the history of the Enigma machine, an encryption device invented by the Germans and thought to be unbreakable. Barone highlights the international collaboration among Polish, French, and British spies and codebreakers that made it possible to break the Enigma cipher and secure victory for the Allies during World War II. This well-researched nonfiction book reads like a spy novel, and readers will be riveted from the first page to the last.

 

 

Can You Crack the Code?  written by Ella Schwartz and illustrated by Lily Williams

This book focuses on the history of ciphers and codes. It’s well laid out with great illustrations and would be a great fit for aspiring cryptographers and anyone who loves secret codes, ciphers, and puzzles. It includes historical stories and explanations on how letters, numbers, and symbols can translate into understandable text. The book also features sample codes to solve yourself and resources at the end.

 

 

Create Your Own Secret Language written by David J. Peterson and illustrated by Ryan Goldsberry

This how-to book will help children learn how to create their own secret language, codes, ciphers, and hidden messages. David J. Peterson is an expert language creator who invented languages for Game of Thrones, the Marvel Universe, and more. KIds can learn how to communicate in secret whether it’s written, drawn, or spoken. The illustrations are especially useful.

 

 

 

Code Cracking for Kids by Jean Daigneau

Another essential volume about codes and ciphers, this book provides a comprehensive history of “secret writing,” from hieroglyphics and invisible ink to ciphers, bar codes, and semaphores. Sprinkled throughout the text are instructions for 21 hands-on activities that give aspiring cryptologists a chance to try their hand at making and breaking their own codes.

 

 

CodeBreakers by DK Publishing

This book provides an overview of the greatest code makers and code-breakers in history through easy to read stories to engage young readers. Examples are deciphering the Rosetta Stone and cracking the Enigma code during World War II. The book includes a reference section with key facts, timelines, and a glossary of terms. It’s easy to navigate with eye popping illustrations.

 

 

Tales of the Mighty Code Talkers by Lee Francis IV, Roy Boney Jr., Arigon Starr, Jonathan Nelson, Renee Nejo, and Lee Francis III

Created by six Native American authors and illustrators, this fascinating graphic novel tells the history of Native American code talkers in the United States military. While the Navajo code talkers of World War II are the best known, this book sheds light on the many other tribes who served in Navy, Army, and Marines, beginning with the Cherokee and Choctaw during World War I. Because tribal languages were not based in Latin or written down, they became the basis for an unbreakable code that led to victories in both world wars. This book is a must-read for anyone interested in codes and cryptography!

 

 

Top Secret: Spies, Codes, Capers, Gadgets, and Classified Cases Revisited by Crispin Boyer

This book is essentially a kid-focused encyclopedia covering a slew of interesting and historical information in a fun and creative way, from Egyptian hieroglyphics to gaming nomenclature. Young readers will learn tricks of the spy trade, get the scoop behind sleuthing, and discover all kinds of skills, like how ninjas walked on water. The texts are easy to read and are paired with engaging pictures and illustrations.

 

 

 

How to Be an International Spy by Andy Briggs

Structured as a training manual for wannabe spies, this engaging book contains factoids about intelligence agencies around the world, demystifies the lingo used in espionage, and features profiles of real spies from history. There are extensive sections devoted to cryptography, digital espionage and cybersecurity, high-tech tools (including instructions for how to make your own), and even tips and tricks for conducting surveillance and going off the grid.

 

 

 

Top Secret Science: Projects You’re Not Supposed to Know About by Jennifer Swanson

Scientists have been on the front lines of secret projects throughout history, from encryption to weapons development to human experimentation. Part of the Scary Science series, the six short chapters in this easy-to-read book introduce readers to the Manhattan Project, Operation Vegetarian, Nazi experimentation, and more.

 

 

 

This month’s STEM Tuesday book list was prepared by:

Author Lydia Lukidis

 

Lydia Lukidis is an award-winning author of 50+ trade and educational books for children. Her titles include DANCING THROUGH SPACE: Dr. Mae Jemison Soars to New Heights (Albert Whitman, 2024), DEEP, DEEP, DOWN: The Secret Underwater Poetry of the Mariana Trench (Capstone, 2023), which is a Crystal Kite winner, Forest of Reading Silver Birch Express Honor, and Cybils Award nominee. A science enthusiast from a young age, she now incorporates her studies in science and her everlasting curiosity into her books. Another passion of hers is fostering a love for children’s literacy through the writing workshops she regularly offers in elementary schools across Quebec with the Culture in the Schools program. For more information, please visit www.lydialukidis.com.

 

author Callie Dean

 

Callie Dean is a researcher, writer, and musician living in Shreveport, LA. She writes stories that spark curiosity and encourage kids to explore their world. Her first picture book will be published in 2026. For more information, please visit https://calliebdean.com.