Exploring Navigation and Magnetism

What did early sailors fear when it got cloudy?

• Getting lost at sea

• Encountering pirates

• Sinking their ships

• Running out of food

What tool did Vikings use to find directions when it was sunny?

• A weather vane

• A map

• A telescope

• A sun compass

What is a sunstone used for?

• To cook food

• To measure time

• To catch fish

• To find the sun when it was cloudy

How many times has the Earth's magnetic field flipped in the past 83 million years?

• 10 times

• 100 times

• 183 times

• 50 times

Which animals have magnetic material in their brains to help them navigate?

• Cats and dogs

• Haddock fish and pigeons

• Elephants and giraffes

• Lions and tigers

When did compasses become more advanced and reliable?

• By the 1800s

• By the 1500s

• By the 2000s

• By the 1900s

Who made the first practical compasses?

• The Chinese

• The Egyptians

• The Greeks

• The Romans

What were the first practical compasses made of?

• Glass beads

• Iron needles floating in water

• Wooden sticks

• Stone tablets

Which famous explorer used compasses for navigation?

• Christopher Columbus

• Marco Polo

• Neil Armstrong

• Ferdinand Magellan

What did sailors use to guide them before compasses?

• Landmarks along the coast

• Stars and planets

• Birds and animals

• Cloud patterns