Reading a Grade 2 Fact Text
RI.2.10
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 builds the mountain?
- 2. What is the main topic of this text?
- 3. The author says magma rises. What reason is given?
- 4. What does "crust" mean in this text?
How Glass Is Recycled
Glass is unusual. It can be melted and remade for ever without getting any worse. Bottles are first sorted by colour. Clear, green and brown glass have to be kept apart, because you cannot make clear glass from green. The glass is then crushed into small pieces called cullet. Metal lids are pulled out with a magnet. Cullet melts at a lower temperature than the raw materials glass is made from. That means recycling glass uses less energy than making it new. The melted glass is poured into moulds and blown into new bottles.
- 1. What is the main topic of this text?
- 2. Why are the colours kept apart?
- 3. How are metal lids removed?
- 4. What happens to the melted glass at the end?
LessonPrint · RI.2.10 · Set 13 · free to copy for classroom use