Read the Passages

A. Building a Windproof LEGO Sailboat: First, connect two long bricks to make a narrow hull. Next, attach a mast near the center. Then, clip a small triangular sail to the mast. Finally, test the boat with a gentle fan and adjust the sail if it tips. B. Two Ways to Cross the Harbor: A kayak moves quietly and can turn quickly, while a small sailboat uses wind and can carry more supplies. Both travel across the water, but a kayak needs paddling; in contrast, a sailboat depends on its sail and rudder. C. Why the Club’s Model Boat Turned: A loose mast made the sail lean sideways. Because the sail caught the wind unevenly, the boat turned in circles. As a result, Caleb tightened the mast before the next test. D. A Challenge at the Dock: The club’s LEGO boat kept drifting away from the dock before anyone could retrieve it. To solve the problem, Camila added a lightweight anchor made from a string and a small brick. The boat stayed close enough to collect. E. Inside a LEGO Sailboat: A LEGO sailboat has several useful features. For example, its broad hull helps it float steadily. The mast holds the sail upright, and the rudder at the back helps steer. Small clips connect these parts so they can be changed during testing.