Free Grade 4 Reading Comprehension Passages & Answers

During her summer vacation, Maya loved exploring the rocky beach near her aunt’s old lighthouse. One morning, the tide went out further than usual, revealing a dark cave that was normally underwater. Carefully stepping over slippery green seaweed, Maya entered the cave with her flashlight. Tucked high on a rocky shelf, safe from the water, sat a heavy brass spyglass. It was covered in scratches and smelled like salt. When Maya looked through it, she noticed tiny initials carved into the metal: C.H. She wondered if a famous sea captain had left it there a hundred years ago.

Long before GPS was invented, sailors used compasses for navigation across the empty ocean. A compass works because the Earth itself is a giant magnet! Deep inside our planet, a core of spinning, liquid iron creates a massive magnetic field that stretches all the way out into space. The needle of a compass is actually a tiny, lightweight magnet balanced on a pin. Because opposite magnetic poles attract each other, the “north” end of the compass needle is naturally pulled toward the Earth’s magnetic North Pole, showing travelers which way they are facing.

Leo was determined to win the school baking competition. He decided to make his grandfather’s famous blueberry muffins. He carefully mixed the flour, sugar, and butter in a large bowl. Then, he grabbed the small blue box from the pantry and added a tablespoon of powder. Twenty minutes later, he pulled the tray out of the oven, but his heart sank. The muffins were flat, hard, and looked like heavy rocks! He checked the recipe and then looked closely at the blue box on the counter. He had accidentally used baking soda instead of baking powder.

Did you know that the water you drink today is the exact same water the dinosaurs drank millions of years ago? This is because of the water cycle. First, the hot sun heats up water in oceans and lakes, turning it into an invisible gas called water vapor. This is called evaporation. As the vapor rises high into the cold sky, it cools down and turns back into tiny liquid water droplets, forming clouds. This is called condensation. Finally, when the clouds get too heavy, the water falls back to Earth as rain or snow, which scientists call precipitation.

Before the 1870s, people communicated over long distances using the telegraph, which sent clicking sounds (Morse code) over a wire. But a man named Alexander Graham Bell wanted to do something much more amazing: he wanted to send human voices over a wire. Bell understood how sound waves traveled through the air. He invented a device that used a thin piece of metal to turn the vibrations of a person’s voice into an electrical current. On March 10, 1876, Bell spoke the first words ever transmitted through a telephone to his assistant in the next room: “Mr. Watson, come here, I want to see you.”