Posted on by TracyC

Understanding and Collecting Rocks and Fossils

Understanding and Collecting Rocks and Fossils by Martyn Bramwell, 1983.

This book is part of a series of beginning hobby guides for kids. It explains how to collect and study rocks and fossils and some of the deeper aspects of geology. The book emphasizes that studying geology helps us to understand the story of the Earth and the forces that have shaped our landscapes and formed the rocks and minerals we use. All through the book, there are suggested activities and experiments for readers, marked with the symbol of a red magnifying hand-lens.

The book explains some the large geological forces, like how the continents move and the plates that make up the Earth’s crust shift. Then, it explains the different types of rocks, igneous, sedimentary, and metamorphic, with examples of each type.

One of the sections I found particularly interesting is the one that explains about how to identify different minerals and what they’re used for. The activity on that page explains how to identify a mineral based on a series of factors, like whether or not it’s magnetic, the color of a streak it might leave when scraped against tile, and its hardness, which you can test by seeing what implement will scratch it.

I also liked the section about crystals and gemstones. There are instructions for growing your own crystals.

The section about fossils explains how to collect fossils, clean them, make plaster molds of them, and identify what organisms made the fossils. The book explains how fossils are made and had a timeline of past eras on Earth and the creatures that existed in each era.

The last section of the book explains the types of work that geologists do and the types of geological surveys they carry out to predict earthquakes and tsunamis and finding useful deposits of ore, minerals, oil, and natural gas.

There’s quite a lot of information to take in. Even though this is a pretty beginner guide to rock collecting and geology, I would say that the book would be better suited to older children than younger ones.

Posted on by TracyC

The Magic School Bus Inside the Earth

The Magic School Bus

MSBEarth

The Magic School Bus Inside the Earth by Joanna Cole, 1987.

Ms. Frizzle’s class has a new student, Phoebe, who is about to discover that Ms. Frizzle is no ordinary teacher and that her class trips are nothing like any other field trip.  Ms. Frizzle’s class is studying the earth and rocks, and she assigns the students homework to find a rock and bring it to class.

MSBEarthHomework

However, even though it sounds like an easy assignment, only one person actually brought a real rock to class.  The others either didn’t bring anything or brought in pieces of old Styrofoam, bits of broken glass, or chips of concrete from the sidewalk.  With only one real rock for the class’s rock collection, Ms. Frizzle decides that the class should to on a trip to collect more.

MSBEarthFieldTrip

She takes the class on a field trip to a real field, but they’re not just going to collect rocks that they find lying on the ground.  The bus changes itself into a steam shovel, and Ms. Frizzle passes out shovels and jackhammers to the students.  They start digging down into the earth, uncovering new layers of rock as Ms. Frizzle explains what types of rocks are in the layers and how they formed.

MSBEarthDigging

Before the field trip is over, the school bus, along with all the students, falls through the ground and into a massive cave.  They continue traveling all the way down through the center of the earth and out the other side, ending up on a volcano, where Ms. Frizzle calmly explains about volcanic rocks.

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I like the picture at the end of the book, after the kids return to school, which points out that there are things all around them that are made out of the different kinds of rocks and minerals that they learned about on their trip.  Each type of rock is also shown in the class’s rock collection along with notes about the type of each rock and how it can be used.

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The book ends with a mock phone conversation between a reader and the author and artist about the impossible things that happen in the book but noting the factual information contained in the story.  The book was featured on Reading Rainbow.  It is currently available online through Internet Archive.

MSBEarthRockCollection