air

There are thousands of plant species in the world, and each one has leaves that look different from other kinds of plants. No matter what leaves look like, they’re one of a plant’s most important parts. This text covers key life science concepts such as photosynthesis. Readers will see different shapes and sizes of leaves through highly detailed color photographs, which complement the text. By the end of the book, readers will see that there’s more to leaves than meets the eye!.

Addie, officially known as Star Girl, is having some trouble fitting in at the Space Education and Action School, but she hopes her second mission will be a success--she and Grace (Comet XS), who does not trust her, must seek out the source of the pollution that is poisoning the intelligent vine aliens on the planet Plantagan.

Ms. Frizzie takes her class on field trips to learn about the planet Earth, covering such topics as seeds, volcanoes, and air.

Presents a discussion of natural sources of air pollution and its effects on humans, plants, and animals, covering primary and secondary sources, monitoring by government agencies, and measures such as green roofs and the Clean Air Act, with commentary by experts and noteworthy case studies.

Simple text and photographs explain how plants and animals take in air and why they need it.

Introduces transportation pollution and discuses ways to reduce pollution.

"This title delves into different issues pertaining to fossil fuel pollution and its causes, effects, and how we can proactively deal with it to make our planet a cleaner and healthier place"--Provided by publisher.

Examines the nature of air, offering a number of do-it-yourself experiments illustrating its properties.

Discusses the topic of the disappearing ozone layer, including causes and consequences, and how to protect the remaining layer.