Answer from the Sources
W.2.8
Read the text, then answer the questions.
Volcanoes
A volcano is an opening in the Earth's crust where hot rock reaches the surface. Deep underground, rock is so hot that it melts. Melted rock is called magma. Magma is lighter than the solid rock around it, so it rises. When magma reaches the surface it is called lava. Lava can pour out slowly in rivers, or it can burst out in an explosion, depending on how thick it is. As lava cools it hardens into new rock. Layer after layer, this new rock builds the mountain we call a volcano.
- 1. What is melted rock called underground?
- 2. What builds the mountain?
- 3. The author says magma rises. What reason is given?
- 4. How would a heading over the third paragraph help a reader?
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. Who crews the lifeboat?
- 2. How would numbered steps help this text?
- 3. What do the crew take off the boat first?
- 4. How long do most of the crew take to reach the station?
LessonPrint · W.2.8 · Set 9 · free to copy for classroom use