Our World 5: Unit 7 Work Book

Exercise 1 (Page 82).

Across 1 A book with many pages is a ... book.

Down 2 The door of a house lets you go from the ... to the outside.

Down 3 It is hard to breathe near an erupting volcano because of the ... .

Across 4 When the sea has no waves, it is ... .

Across 5 Only ... remains after a fire burns completely.

Across 7 Magma is melted rock ... inside the volcano.

Across 8 When something rises to the top of a pool of water, it rises to the ... .

Down 6 When a volcano ..., lava flows down the sides.

Across 10 When something breaks up and throws pieces into the air with a loud noise, it ... .

Down 9 A ... is a mountain that contains hot magma.