Pool full of Orbeez Experiments!

The video features a series of experiments conducted in a pool filled with 25 million Orbeez. Mark Rober and the host perform various tests, including using dry ice to create an explosion, testing fireworks underwater, playing sports like tennis and golf with Orbeez, and experimenting with sound frequencies using a subwoofer. The video concludes with a molten aluminum casting experiment, showcasing the creative and scientific exploration of Orbeez in different scenarios.

What sports equipment did they use to test the water balls?

What was the result of using a golf club in the pool full of water balls?

What did they pour into the pool to create a casting?