The video explores the possibility of walking on water by mimicking the morphology of animals like lizards and mosquitoes. Initial attempts using floaters made of polystyrene and wax cloth fail. The team then experiments with cornflour to create a non-Newtonian fluid, allowing them to walk on water by moving quickly. The experiment succeeds after filling a pool with a cornflour-water mixture, demonstrating the concept of non-Newtonian fluids.

What was the initial idea to walk on water based on?

• Using a hoverboard

• Building a bridge

• Mimicking the morphology of certain animals

• Using a motorized device

What material did the team initially consider for making floaters?

• Metal

• Rubber

• Wood

• Polystyrene

What was the main challenge faced during the initial test with floaters?

• The floaters were too heavy

• The floaters sank immediately

• Surface tension made it difficult to lift a foot

• The floaters were too small

What substance did David propose to add to water to change its structure?

• Sugar

• Sand

• Cornflour

• Salt

What is a non-Newtonian fluid?

• A fluid that behaves like a gas

• A fluid that changes its viscosity under stress

• A fluid that is always solid

• A fluid that evaporates quickly

How much cornflour was used in the large-scale experiment?

• 4 tons

• 2 tons

• 1 ton

• 3 tons

What was the key to successfully walking on the cornflour-water mixture?

• Walking slowly

• Taking large steps

• Walking very quickly

• Using a support

What was the purpose of the large-scale experiment?

• To test a new type of swimming pool

• To demonstrate a magic trick

• To verify the hypothesis about walking on water

• To create a new sport

What did the team build to conduct the large-scale experiment?

• A large laboratory

• A giant swimming pool

• A water park

• A new type of boat

What was the final outcome of the experiment?

• The team successfully walked on water

• The team failed to walk on water

• The hypothesis was invalid

• The experiment was inconclusive