Bibliografía (100 obras)
Pollution
2011
Saving wildlife
2010
Acid rain
Changing planet
Climate change
Rain forests in danger
Water for everyone
How we use plants to make everyday things
2009
Alternative energy sources
Body doubles
Cheetahs
Clown fish and other coral reef life
Dolphins and porpoises
The food cycle
Frogs and toads
Germ killers
Global warming
Hermit crabs and other shallow-water life
How we use plants for food
How we use plants for medicine and health
How we use plants for shelter
Natural resources
Orcas and other cold-ocean life
The plant cycle
The rock cycle
Sperm whales and other deep-water life
Superfoods
The water cycle
Wild horses
Wastewater
2008
Ants
Ducks
Bats
Electricity and electrical circuits
Energy
Household waste
Leftover food
Old cars
Old clothes
Protecting threatened species
Sound
Bees
2007
Focus on Pakistan
Fish
Goats
Focus on Indonesia
Ozone hole
2006
Inside your mouth and other body parts
Tortoises and turtles
Under a leaf in forests and jungles
Under a stone and other rocky places
Waste and recycling
Body sculpting
2005
Cells and cell function
Sponges and other minor phyla
Warfare in a hi-tech age
From caterpillar to butterfly
From kitten to cat
Green plants
Rodents
2004
Insect eaters
Marsupials
Small cats
Small primates
The weasel family
From Seed to Sunflower (How Things Grow)
2002
From Tadpole to Frog (How Things Grow)
Plants and life
Plants and people
Roots, stems, and leaves
Flies and mosquitoes
2001
Oceanlife
Waste disposal
2000
Water for all
A giant tree in the rain forest
Saving the rainforests
1999
Changing climate
Homes and cities
1998
Tourism in balance
Flowers, trees, and fruits
1996
The human body
Weather
Animals and their world
Butterflies, bugs, and worms
Ecology and environment
1995
Spirals
1994
Materials
Technology in action
Circles and spheres
Squares and cubes
The super science book of the environment
Triangles and pyramids
Water
Using sound
Using energy
1993
Movement
Using light
Structures
Highlands
1992
Paper
