Tools of Explorers Trade

The use of knowledge for practical purposes is the definition for which word ?

• technology

• application

• computation

Which word below would be a synonym for antiquated ?

• computations

• catastrophic

• obsolete

The star Polaris is also known as ....

• Big Dipper

• North Star

• Betelgeuse

Polaris can only be seen from the Southern Hemisphere.

• True

• False

What was the astrolabe ?

• a tool that could see the variety of stars in the night sky

• a measuing tool that computes the time and positions of the sun, moon, planets, and stars

• a tool that could help sailors navigate the ocean waters by gauging the height of the waves

What does the Greek root Astro mean ?

• star

• sky

• space

The sextant was a ....

• navigation tool that use the stars and moon to help navigate sailors on land

• navigation tool that use the position of the sun and stars to find a location on Earth

• a navigation tool that use the weather and the height of the waves to help sailors travel the oceans.

The sextant is no longer used by sailors today.

• True

• False

The compass is made by balancing ....

• a magnetic needle against another magnetic needle

• a magnetic needle below the circular dial

• a magnetic needle above a circular dial

What causes a compass needle to swing in the north and south positions ?

• The magnetic pull of the Moon on the Earth's atomosphere

• The Earth's magnetic field

• The moon's gravity pull on the ocean waves causes the compass to move