Kira Vermond leads a double life. She's written more than 2,000 articles for adults as a journalist and seven nonfiction books for kids about money, puberty, geography, science, fads, and lies. In other words, she likes to mix things up. She lives in Guelph, Ontario.Suharu Ogawa is a Toronto-based illustrator originally from Japan. After working as an art librarian in California for several years, she packed up her suitcase and moved to Canada in 2011. Now she creates illustrations for various publications.

• Table of contentsIntroduction Chapter 1: CUTE CRITTERS AND UP-ROAR-IOUS CREATURESEarth is crawling with incredible animals What do cats use their whiskers for? Why do dogs see in black and white? Why don’t owls fly in the morning? Why do scorpions glow under ultraviolet light? Why don’t wasps make honey? Why do bees sting? What is the oldest animal on Earth? Why are sharks so scary? Why didn’t sharks become extinct with the dinosaurs? How do scientists know a T-rex was standing on two feet? Are birds really dinosaurs? Chapter 2: THE WORLD INSIDE USFrom nose to toes and brains to bums, our bodies are amazing What makes us human?Why do we grow hair? Why do we have butts? How many times can you spin before you puke? Why does my pee smell? How does sound get to our brain? Do we all see color the same? Why are games so fun? Will humans ever fly? Is genetic mutation that creates super abilities possible? Chapter 3: THIS PLANET WE CALL HOMEEarth is a naturally curious place Why do we have to go outside? How did water get on Earth? What makes volcanos explode? Why are flowers different colors? Why is a cactus prickly? How do mirrors reflect? What color is sunlight? Why does my shadow follow me? How does static make hair fly? How many people live on Earth? Chapter 4: TREMENDOUS TECH AND INSPIRING INNOVATIONSScience can make life better, safer, and more fun How do you get the strawberry in the strawberry candy? Why does my bag of popcorn explode after microwaving for two minutes? Why is glue sticky? How does an X-ray see through bodies? When will they cure cancer? Can stem cells bring back the dead? Can we live forever one day? Why do we pollute? How does information travel so fast on the internet? Is there Wi-Fi in space? Chapter 5: OUR OUT-OF-THIS WORLD UNIVERSEFar-out facts about space Why do northern lights exist? Why is there no gravity in space? When will the sun explode? What is the coldest star? Do bacteria grow in space? Why are there astronauts in space when we have robots? How far is it possible to go in a spaceship? How do people survive on Mars? Conclusion Acknowledgments Further Reading and Select Sources Index

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Kira Vermond leads a double life. She's written more than 2,000 articles for adults as a journalist and seven nonfiction books for kids about money, puberty, geography, science, fads, and lies. In other words, she likes to mix things up. She lives in Guelph, Ontario.Suharu Ogawa is a Toronto-based illustrator originally from Japan. After working as an art librarian in California for several years, she packed up her suitcase and moved to Canada in 2011. Now she creates illustrations for various publications.

• Table of contentsIntroduction Chapter 1: CUTE CRITTERS AND UP-ROAR-IOUS CREATURESEarth is crawling with incredible animals What do cats use their whiskers for? Why do dogs see in black and white? Why don’t owls fly in the morning? Why do scorpions glow under ultraviolet light? Why don’t wasps make honey? Why do bees sting? What is the oldest animal on Earth? Why are sharks so scary? Why didn’t sharks become extinct with the dinosaurs? How do scientists know a T-rex was standing on two feet? Are birds really dinosaurs? Chapter 2: THE WORLD INSIDE USFrom nose to toes and brains to bums, our bodies are amazing What makes us human?Why do we grow hair? Why do we have butts? How many times can you spin before you puke? Why does my pee smell? How does sound get to our brain? Do we all see color the same? Why are games so fun? Will humans ever fly? Is genetic mutation that creates super abilities possible? Chapter 3: THIS PLANET WE CALL HOMEEarth is a naturally curious place Why do we have to go outside? How did water get on Earth? What makes volcanos explode? Why are flowers different colors? Why is a cactus prickly? How do mirrors reflect? What color is sunlight? Why does my shadow follow me? How does static make hair fly? How many people live on Earth? Chapter 4: TREMENDOUS TECH AND INSPIRING INNOVATIONSScience can make life better, safer, and more fun How do you get the strawberry in the strawberry candy? Why does my bag of popcorn explode after microwaving for two minutes? Why is glue sticky? How does an X-ray see through bodies? When will they cure cancer? Can stem cells bring back the dead? Can we live forever one day? Why do we pollute? How does information travel so fast on the internet? Is there Wi-Fi in space? Chapter 5: OUR OUT-OF-THIS WORLD UNIVERSEFar-out facts about space Why do northern lights exist? Why is there no gravity in space? When will the sun explode? What is the coldest star? Do bacteria grow in space? Why are there astronauts in space when we have robots? How far is it possible to go in a spaceship? How do people survive on Mars? Conclusion Acknowledgments Further Reading and Select Sources Index

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Kira Vermond leads a double life. She's written more than 2,000 articles for adults as a journalist and seven nonfiction books for kids about money, puberty, geography, science, fads, and lies. In other words, she likes to mix things up. She lives in Guelph, Ontario.Suharu Ogawa is a Toronto-based illustrator originally from Japan. After working as an art librarian in California for several years, she packed up her suitcase and moved to Canada in 2011. Now she creates illustrations for various publications.

• Table of contentsIntroduction Chapter 1: CUTE CRITTERS AND UP-ROAR-IOUS CREATURESEarth is crawling with incredible animals What do cats use their whiskers for? Why do dogs see in black and white? Why don’t owls fly in the morning? Why do scorpions glow under ultraviolet light? Why don’t wasps make honey? Why do bees sting? What is the oldest animal on Earth? Why are sharks so scary? Why didn’t sharks become extinct with the dinosaurs? How do scientists know a T-rex was standing on two feet? Are birds really dinosaurs? Chapter 2: THE WORLD INSIDE USFrom nose to toes and brains to bums, our bodies are amazing What makes us human?Why do we grow hair? Why do we have butts? How many times can you spin before you puke? Why does my pee smell? How does sound get to our brain? Do we all see color the same? Why are games so fun? Will humans ever fly? Is genetic mutation that creates super abilities possible? Chapter 3: THIS PLANET WE CALL HOMEEarth is a naturally curious place Why do we have to go outside? How did water get on Earth? What makes volcanos explode? Why are flowers different colors? Why is a cactus prickly? How do mirrors reflect? What color is sunlight? Why does my shadow follow me? How does static make hair fly? How many people live on Earth? Chapter 4: TREMENDOUS TECH AND INSPIRING INNOVATIONSScience can make life better, safer, and more fun How do you get the strawberry in the strawberry candy? Why does my bag of popcorn explode after microwaving for two minutes? Why is glue sticky? How does an X-ray see through bodies? When will they cure cancer? Can stem cells bring back the dead? Can we live forever one day? Why do we pollute? How does information travel so fast on the internet? Is there Wi-Fi in space? Chapter 5: OUR OUT-OF-THIS WORLD UNIVERSEFar-out facts about space Why do northern lights exist? Why is there no gravity in space? When will the sun explode? What is the coldest star? Do bacteria grow in space? Why are there astronauts in space when we have robots? How far is it possible to go in a spaceship? How do people survive on Mars? Conclusion Acknowledgments Further Reading and Select Sources Index

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