GETTING THE MAIN IDEA

Front

Cactus: a spiked desert plant with colorful flowers. How does it survive in the dry desert? Its roots catch rain just below the soil surface, storing water in its thick stem. Spines instead of leaves prevent water loss, enabling survival in arid conditions.

Back

How the cactus has adapted to the desert

Front

Uses of herbs include cooking spices, fragrances for perfumes, and ancient medicine.

Back

The uses of herbs

Front

Homes in hot deserts had tall towers with thick walls and tiny windows to block the sun's heat. These towers caught wind and cooled the rooms below.

Back

Wind towers

Front

Blossoms sprouted everywhere from stems on the ground and tree trunks. Crista saw many plants, shaped like Earth's but in different colors: red and orange leaves, flowers streaked with pink, yellow, brown, and blue.

Back

Plants

Front

King crabs use unique methods for self-protection, including young crabs forming groups and males holding claws with females during shell shedding.

Back

How king crabs protect themselves

Front

The dictionary is a vital reference for students, aiding in quick information retrieval. Words are arranged alphabetically, making it crucial to know a letter's position in the alphabet.

Back

The dictionary as an important reference

Front

Leonardo da Vinci: painter, sculptor, musician, engineer, inventor, and a key figure in science.

Back

Many talents of Leonardo da Vinci

Front

Everybody enjoyed the blind man playing a lively tune on his guitar. Men and women stopped to listen, whistled, clapped, and some opened their windows to enjoy the music.

Back

The blind man playing a lively tune

Front

Purpose of every creature for being on earth

Back

Purpose of every creature for being on earth

Front

Bamboo is a versatile grass, resembling a tree, used for fences, houses, toys, and more. Its leaves feed animals and make paper, while the stem produces buckets, pipes, and flutes. Juice is medicinal, and young stems are edible.

Back

Many uses of bamboo