Can a Sandcastle Support a Brick?

The video tutorial demonstrates how to build a sand castle that can support weight using layers of sand and window screen. It explains the process of packing sand and alternating it with window screen layers to create a stable structure. The tutorial suggests testing the sand castle's strength by placing a brick on top and encourages using this method for a science project to explore weight support and the effect of screen spacing.

What is the primary purpose of using layers of window screen in the sand structure?

• To make the sand castle taller

• To add color to the sand castle

• To prevent sand grains from sliding past each other

• To allow water to drain through the sand

What can be used as an alternative to window screen if it's not available?

• Plastic wrap

• Aluminum foil

• Grass, twigs, or seaweed

• Paper towels

What should you do after filling the bucket with alternating layers of sand and window screen?

• Shake the bucket to mix the layers

• Leave the bucket in the sun to dry

• Flip the bucket over and tap it to remove the sand

• Add water to the bucket

What is the main scientific principle that allows the sand castle to support weight?

• The weight of the sand

• The friction between sand grains

• The strength of the window screen

• The height of the sand castle

What is one suggested use for this sand structure experiment?

• A beach decoration

• A science project

• A cooking recipe

• A gardening tool