Kay Manolis

Simple text and full color photographs introduce beginning readers to the characteristics of blizzards.

Why do police cars patrol the streets? Police cars help police officers fight crime and stop people from driving dangerously. Get a look into these cars and the equipment police use inside them.

Screws are simple machines used for many different jobs. The concept of a screw is used in snow blowers, drills, and presses. Kids will learn how screws work and how they are used in complex machines.

Gases, liquids, and solids are all matter. Everything that has mass and takes up space is matter. This book instructs eager learners about the different forms of matter and explains how matter can change forms.

Why is a small piece of metal heavier than a large piece of foam? Why does wood float in water? This books answers these questions as it teaches children about density in water and air.

The nervous system is a complex network of nerves that allows you to experience the world around you. Children will find out how nerves carry messages to the brain so that people can do things like jump and eat.

Pulleys are simple machines used to lift and move loads. Builders use pulley systems to lift tools or materials. Elevators use pulleys to move up and down. Kids will learn how pulleys make work easier and how they are often part of complex machines.

Wave down a taxi and catch a ride! These helpful cars take people where they need to go. Beginning readers will learn how to catch a taxi, how taxis work, and where taxis can take people.

As soon as food touches your tongue, it begins a long process of moving through different parts of your body. This book explains how the human body breaks down food to get nutrients and stay healthy.

Gravity keeps people grounded and prevents them from floating away into space! Young readers will learn how and why gravity works and discover how to measure it on Earth.