Walking on Water: The Science Experiment

The video explores the possibility of walking on water by mimicking the morphology of animals like lizards. Initial attempts using floaters made of polystyrene and wax cloth failed. The team then experimented with cornflour to alter the water's structure, creating a non-Newtonian fluid. After extensive testing, they succeeded in walking on water by moving quickly across a pool filled with a cornflour-water mixture.

What inspired the team to try walking on water?

• The morphology of certain animals

• The flight of birds

• The structure of ice

• The buoyancy of boats

What material did the team initially use to create floaters?

• Wood

• Rubber

• Polystyrene

• Metal

Why was it difficult for David to walk on water with the floaters?

• Surface tension prevented lifting a foot

• The floaters were too heavy

• The water was too deep

• The floaters were too small

What is a non-Newtonian fluid?

• A fluid that is always solid

• A fluid that behaves like a gas

• A fluid that changes viscosity under stress

• A fluid that evaporates quickly

What substance did the team add to water to change its structure?

• Salt

• Sand

• Sugar

• Cornflour

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

• 2 tons

• 1 ton

• 4 tons

• 3 tons

What was the key to successfully walking on the modified water?

• Walking slowly

• Taking large steps

• Moving quickly

• Using a pole for balance

What did the team build to test their hypothesis?

• A water slide

• A small pond

• A giant swimming pool

• A large aquarium

What was the purpose of the large-scale experiment?

• To observe the behavior of fish

• To measure the speed of water currents

• To verify the hypothesis about walking on water

• To test the buoyancy of different materials

What did the team conclude about walking on water?

• It requires a special type of shoe

• It is impossible under any conditions

• It is possible with a modified water structure and speed

• It can only be done in shallow water