WorldCat Identities

Rahn, Joan Elma 1929-

Overview
Works: 30 works in 46 publications in 1 language and 5,355 library holdings
Genres: Juvenile works  History 
Roles: Author
Classifications: SB71, 909
Publication Timeline
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Most widely held works about Joan Elma Rahn
 
Most widely held works by Joan Elma Rahn
Animals that changed history by Joan Elma Rahn( Book )

1 edition published in 1986 in English and held by 380 WorldCat member libraries worldwide

Discusses the effects on history--for better or worse--made by the horse, rat, and beaver
Plants that changed history by Joan Elma Rahn( Book )

1 edition published in 1982 in English and held by 368 WorldCat member libraries worldwide

Recounts five episodes from history when the introduction of new plants or plant products, from grains and spices to coal, influenced the course of civilization
How plants are pollinated by Joan Elma Rahn( Book )

3 editions published between 1975 and 1978 in English and held by 352 WorldCat member libraries worldwide

Describes the many ways that flowers are pollinated and the pollinating agents that make the differences in flowers possible
Eyes & seeing by Joan Elma Rahn( Book )

2 editions published in 1981 in English and held by 318 WorldCat member libraries worldwide

Describes some diverse types of eyes from flatworms to humans. Includes information on light and simple experiments
Grocery store botany by Joan Elma Rahn( Book )

2 editions published in 1974 in English and held by 305 WorldCat member libraries worldwide

Describes the anatomy of some common food plants and gives directions for 25 simple demonstrations and experiments illustrating the functions of some plant parts, especially those used for food
Ears, hearing & balance by Joan Elma Rahn( Book )

2 editions published in 1984 in English and held by 297 WorldCat member libraries worldwide

Explains the importance of ears, hearing, and the sense of balance, and describes how we hear, how various animals hear, and how animal hearing differs in structure and usage from human hearing
Keeping warm, keeping cool by Joan Elma Rahn( Book )

2 editions published in 1983 in English and held by 292 WorldCat member libraries worldwide

Describes how living things, especially animals and human beings, adapt to environmental temperature changes, in order to conserve heat in cold weather and lose it in hot weather
Holes by Joan Elma Rahn( Book )

2 editions published in 1984 in English and held by 268 WorldCat member libraries worldwide

Introduces holes and the many ways they are useful to us, as in scissors, flower pots, fish nets, tunnels, lace, keys, garden hoses, and computer cards
Biology: the science of life by Joan Elma Rahn( Book )

3 editions published between 1974 and 1980 in English and held by 247 WorldCat member libraries worldwide

More plants that changed history by Joan Elma Rahn( Book )

1 edition published in 1985 in English and held by 243 WorldCat member libraries worldwide

Discusses the influence papyrus and paper, rubber growing, and the tea and opium trade have had on the relationships between nations
The metric system by Joan Elma Rahn( Book )

1 edition published in 1976 in English and held by 234 WorldCat member libraries worldwide

Explains the principles and uses of the metric system
Seven ways to collect plants by Joan Elma Rahn( Book )

1 edition published in 1978 in English and held by 234 WorldCat member libraries worldwide

Discusses ways to collect and preserve plants and several techniques to produce prints and photographs of the collection
Plants up close by Joan Elma Rahn( Book )

2 editions published in 1981 in English and held by 233 WorldCat member libraries worldwide

Examines five different plants in order to show how the parts of a plant function and how they contribute to the plant's life
How plants travel by Joan Elma Rahn( Book )

2 editions published in 1973 in English and held by 232 WorldCat member libraries worldwide

Describes the many ways plants are dispersed by wind, water, animals, and people
Seeing what plants do by Joan Elma Rahn( Book )

2 editions published in 1972 in English and held by 216 WorldCat member libraries worldwide

Twenty-one experiments explain the growth process in a variety of plants
Watch it grow, watch it change by Joan Elma Rahn( Book )

1 edition published in 1978 in English and held by 212 WorldCat member libraries worldwide

Discusses the formation and growth of plant parts such as stems, leaves, roots, flowers, tubers, and buds and the germination of seeds
Grocery store zoology : bones and muscles by Joan Elma Rahn( Book )

1 edition published in 1977 in English and held by 208 WorldCat member libraries worldwide

Introduces the function of bones, joints, and muscles using the chicken and other meat available at the grocery store as examples
More about what plants do by Joan Elma Rahn( Book )

1 edition published in 1975 in English and held by 193 WorldCat member libraries worldwide

A collection of simple experiments concerned with plant growth. A sequel to Seeing What Plants Do
Traps & lures in the living world by Joan Elma Rahn( Book )

1 edition published in 1980 in English and held by 168 WorldCat member libraries worldwide

Introduces the many ways plants and animals capture animals for food, pollination, mating, and other purposes
Alfalfa, beans & clover by Joan Elma Rahn( Book )

1 edition published in 1976 in English and held by 146 WorldCat member libraries worldwide

An introduction to the characteristics, uses, and importance of about sixty members of the bean family, one of the largest and most diverse families of flowering plants
 
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Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.23 (from 0.19 for Animals th ... to 0.84 for Joan Elma ...)

Alternative Names
Rahn, Joan E.

Languages
English (33)