The Changing of Earth

Choose True of the sentence is correct and false if the sentence is wrong.
1. The Earth's continents have moved because of plates are floating on hot molten rock beneath.

• True

• False

Choose True of the sentence is correct and false if the sentence is wrong.
2. The Earth's crust is the thick layer of solid rock that surrounds the Earth.

• True

• False

Choose True of the sentence is correct and false if the sentence is wrong.
3. The continental crust is thicker than the ocean-floor crust.

• True

• False

4. 4. Volcanoes and earthquakes are common along plate .................. where the plates move against each other.

Match the picture and the vocabulary following .

• Rift

• 
• Plates

• 
• Lava

• 

Match the meaning with the vocabulary following .

• The outside layer of the Earth

• Lava crust

• Beneath the crust lies hot molten rock

• Magma

• Molten rock flowing from the ground

• Lava

Most volcanoes are located along the boundaries between the Earth's plates, where the crust is thin or broken.

• the volcanoes

• the boundaries

• the rift

A volcano is a place where hot ​ (a)   breaks through the Earth's​ (b)  

​ In a volcanic ​ (c)   , lava, ash and poisonous gas rise from the ground.These materials may build up into a ​ (d)   shaped mountain with a ​ (e)   . Scientists try to eruptions so that people can be from the danger area.

• crust
• magma
• eruption
• cone
• crater

The Earth's rocks do stay the same for ever. True or False

• True

• False

There are three kinds of rock. Which one is not include in the group?

• igneous

• metamorphobic

• sedimentary

• metamorphic