Books with author john o'hara

When we're checking thermometers to see what the temperature is outside, inside, or our own body temperature, we rarely think about what makes the thermometer function. This amazing, reliable invention is attributed to Galileo. Readers will learn about the first mercury thermometers and how they work and they'll review the digital models they may be more familiar with today. Many important science concepts are presented along with beneficial photographs and images to support reading comprehension.

The Great Depression was a terrible time in the United States. Americans had never known such hunger and poverty. This crisis lasted 10 years. What happened to cause this catastrophe, how it finally ended, and the lasting effects it had on the nation are all addressed in this invaluable look at a critical period in American history. Engaging and accessible text is supported by striking historical images and interesting fact boxes. A timeline summarizes and reinforces the most essential concepts.

It's field trip day, and students are excited to travel on their yellow spaceship bus from their space station to the moon.Climb aboard the spaceship bus for a fantastic field trip adventure to the moon. Once they land, students debark and set out with their teacher to explore. They jump over trenches and see craters and mountains on the moon's surface and even Earth in the faraway distance. One student takes a break to draw some pictures, falls asleep, and wakes up to discover that the rest of the class and the spaceship are gone. How the student passes the time waiting to be rescued makes for a funny and unexpected adventure that will enchant children all over the galaxy.With rich atmospheric art, John Hare's wordless picture book invites children to imagine themselves in the story--a story full of surprises including some friendly space creatures. Published in time for the fiftieth anniversary of the first moon walk, it is a perfect complement to discussions and lessons on the moon landing.

Rocks are everywhere. How they formed in the first place is a question we may have never asked, but it's something we all should learn. With this engaging volume, budding geologists will come to appreciate Earth's remarkable rock cycle and marvel at the processes that create, destroy, and reshape the landforms we know. Essential vocabulary terms, accessible explanations, and helpful diagrams make this a valuable book for every earth science collection.

The Great Depression was a terrible time in the United States. Americans had never known such hunger and poverty. This crisis lasted 10 years. What happened to cause this catastrophe, how it finally ended, and the lasting effects it had on the nation are all addressed in this invaluable look at a critical period in American history. Engaging and accessible text is supported by striking historical images and interesting fact boxes. A timeline summarizes and reinforces the most essential concepts.

Rocks are everywhere. How they formed in the first place is a question we may have never asked, but it's something we all should learn. With this engaging volume, budding geologists will come to appreciate Earth's remarkable rock cycle and marvel at the processes that create, destroy, and reshape the landforms we know. Essential vocabulary terms, accessible explanations, and helpful diagrams make this a valuable book for every earth science collection.

Rainbows are those rare phenomena that make people stop and appreciate the beauty of nature. Why and how they appear are the high-interest topics of this accessible book. While readers will be captivated by beautiful color photographs of rainbows, they'll also be intrigued by the properties of light that make such a display possible. A concluding diagram reinforces comprehension of the key concepts, which relate closely to elementary science curricula.

Once, in a magical time where everything is possible two children lived by a wonderful Fountain from which the rainbow spray spread happiness throughout the world. An evil, but powerful Wizard plotted to steal the Fountain and to distort its magic so that instead of happiness it would spread misery and terror everywhere. The Fountain's magic could only be released by means of an enchanted spell known only to the children's parents. Because they refused to give this spell to the Wizard they were thrown into a dark prison within the Wizard's castle, and the terrible prison door was locked with seven magical locks. The keys were scattered over seven strange worlds..... "Let someone find these keys and open the locks", the Wizard raged, "Only then the prisoners will go free..." This story tells of the adventures of Charlotte and Jeremy as they search through the Seven Enchanted Worlds for the Seven Magic Keys which will free their parents from the Dungeons of the Great Wizard. Many of the worlds have been distorted and changed by the Wizard's evil magic, but, somehow before they set off the children receive some mysterious help - a magic mirror, a cloak of invisibility - and a strange cat who (sometimes) talks and sometimes does not, but always seems to know exactly what to do. They travel through their own Homeworld where they escape the Trolls, Witches and Ogres and also an enormous man-eating tree.....This is where they win the first key!Then IceWorld where the Ice Demons almost destroy Jeremy and there are no real children, only little snow-people. At the top of a beacon reaching far into the sky they gain the second key.Up in the clouds the World of Air is peopled by Rainbow Horses who are being destroyed by the Storm Sprites. They capture Jeremy who escapes by causing a terrible explosion of all the thunder and lightening spells. With the magic keys drawing them on from world to world, the children continue to meet evil enchantment, and dreadful creatures with magic powers at every twist and turn. They discover an empty factory, with robots ceaselessly doing meaningless tasks, whilst their masters - all children - are sleeping. The air is full of the Wizard's sleep-dust and it lays thick on the ground where Jeremy, Charlotte and Twitch walk. Near the Golden Castle they must escape from the Bone Suckers and thread their way through the great flesh-eating wheels....... Within the Golden Castle, the Mind-Stealing giant bats almost destroy Charlotte and the next key is given to the children by the Comet-Blazer...In the Underground World they are trapped by the Rock Growlers, they enter the land of the Giant Ants and Electric Bees....... Spidermaze, where the Devil Imps force the children to meet the huge SpiderKing. He knows of their search for the Seven Keys and does not intend that they should succeed. They are thrown into the miles and miles of the SpiderKing's maze - full of bones from those who had never been able to get though.... As they search for the last key they almost fail...... The final dangers are all there, worse than before as they find their way to the Wizard's castle. They must cross the murderous pathway; they must open each of the strange enchanted locks which are not real locks but magic creations; they must count the tolling of the bell...On every page the story tells of magic, danger and adventure...and how Jeremy, Charlotte and Twitch finally meet their Mother and Father again and find their way home..

The rights of a nation's citizens are civil rights. In the 1950s and 1960s, black Americans organized a movement to demand these rights, including equal education, the right to vote, and many other freedoms. This significant and accessible volume takes readers through the key events of the movement, including its victories and disappointments. Central figures such as Martin Luther King, Jr. and Malcolm X are featured, and a timeline helps readers understand the movement's progression.

Rainbows are those rare phenomena that make people stop and appreciate the beauty of nature. Why and how they appear are the high-interest topics of this accessible book. While readers will be captivated by beautiful color photographs of rainbows, they'll also be intrigued by the properties of light that make such a display possible. A concluding diagram reinforces comprehension of the key concepts, which relate closely to elementary science curricula.