Sea turtles lay their eggs on sandy beaches. The mother digs a hole, lays the eggs and covers them with sand. About two months later, the baby turtles hatch and crawl to the sea. Where do sea turtles lay their eggs?
We blink many times every minute. Blinking spreads tears across the eye, which keeps it moist and washes away dust. Why do we blink?
Honeybees communicate by dancing. When a bee finds flowers, it returns to the hive and moves in a pattern called the waggle dance. The direction and length of the dance tell other bees where the food is. What is the main idea of the passage?
Some birds, such as Arctic terns, migrate thousands of kilometres every year. Scientists think birds find their way using the sun, the stars and Earth’s magnetic field. Which word best describes the scientists’ explanation?
“Unlike typical classrooms, the new science lab has movable tables, large screens on every wall and sinks at each station.” What is the author mainly doing in this sentence?
Some animals hibernate in winter. Their heart rate and breathing slow down, and their body temperature drops. This saves energy at a time when food is hard to find. Why do some animals hibernate?
Some scientists argue that the dinosaurs died out because a huge asteroid struck Earth. Others point to massive volcanic eruptions that changed the climate. Many now think both events played a part. Which statement best describes the passage?
“It was the kind of morning that made you want to stay in bed — grey skies, steady drizzle and a cold wind rattling the windows.” What mood is the author creating?
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