SST : Our Earth

The Earth is a ________.

• star
• satellite

• asteroid

• planet

The Earth is ________ in shape.

• cylinder
• round

• cuboid
• pyramid

A day on Earth has about _______ hours.

• 48
• 36
• 12
• 24

Most of Earth's surface is covered with _______.

• Land

• Grass
• Sand
• Water

The ______ is the highest mountain range on Earth.

• Rocky Mountains
• Sahara

• Himalayas
• Andes

The Earth is surrounded by a layer of air called _______.

• ozone
• atmosphere
• exosphere
• troposphere

About 500 years ago, __________ and his crew started long journey from Spain.

• Amerigo Vespucci
• Ferdinand Magellan
• Marco Polo
• Christopher Columbus

Very long ago, people believed that the Earth was ______ and had edges.

• square
• cylindrical
• flat
• triangular

A _______ model of the Earth is called Globe.

• one-dimensional

• three-dimensional

• two-dimensional

three-dimensional meaning

• something that has length, breadth and height

• something that has length, breadth but no height.

• involving time