How One Thing Leads to Another
RI.2.3
Read the text, then answer the questions.
Launching a Lifeboat
When a boat is in trouble, a call goes out to the lifeboat station. Pagers sound. The crew are volunteers, so they stop whatever they are doing and drive to the station. Most arrive within six minutes. They pull on drysuits and lifejackets and climb aboard. The boat slides down a ramp into the sea and the engines start. At sea, the crew look for a flare, a light, or a shape in the water. Once they find the boat, they take the people off first and the boat second. A lifeboat can right itself if a wave rolls it over.
- 1. Put these in order: the boat slides down the ramp, pagers sound, the crew pull on drysuits.
- 2. How are the pagers connected to the launch?
Earthquakes
The Earth's crust is not one piece. It is broken into huge slabs called plates, and the plates are always moving — about as fast as your fingernails grow. Where two plates meet, they can catch on each other. Pressure builds up for years while they are stuck. When they finally slip, all that stored energy is released at once. The ground shakes. That shaking is an earthquake. Most earthquakes are too small to feel. A few are strong enough to bring down buildings, which is why new buildings in some places are made to sway.
- 1. How is pressure connected to the shaking?
- 2. Put these in order: the ground shakes, the plates catch, pressure builds.
LessonPrint · RI.2.3 · Set 15 · free to copy for classroom use