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health and illness

People are healthy when all of their body parts work well. Most of the time, we can stay healthy by eating good food, using our muscles in exercise, getting plenty of sleep, and resting if we start to feel sick. But sometimes, we can suffer injuries or become sick even when we take care of ourselves. ... read more

types of plants

There are many kinds, shapes, and sizes of plants on Earth. Among them, algae, mosses, liverworts, ferns, and some trees are non-flowering plants. Among the flowering plants are the grasses and other non-woody, herbaceous plants. Shrubs, some vines, and many kinds of trees are woody plants. ... read more

what is earth science

As far as we know, Earth is the only place in the solar system that contains all the ingredients (liquid water, chemical building blocks, and an energy source) needed for life. All the living things we know of live on Earth. It is home to plants, animals, and humans. Everything on the planet needs eve... read more

why do toucans have such big beaks

Toucans have large beaks in order to regulate their body temperature. ... read more

plant movements and adaptations

Plant Movements ... read more