Building Miniature Stream Tables

What is the main reason for using miniature stream tables instead of large ones?

• They provide more accurate results.

• They are less expensive and save space.

• They are more effective in demonstrating erosion.

• They are easier to transport.

Why should you avoid using metal or flimsy plastic paint roller pans?

• They do not hold water well.

• They are too expensive.

• They do not stand up at an angle.

• They are too heavy to carry.

What is the purpose of drilling holes in the paint roller pans?

• To allow water drainage.

• To attach them to a stand.

• To make them lighter.

• To improve water circulation.

Why is it important to wet the sand before starting the class?

• To prevent the sand from blowing away.

• To ensure the sand stays in place.

• To make the sand easier to mold.

• To slow down the water flow for better observation.

What is the benefit of creating a small channel in the sand before pouring water?

• It makes the sand more compact.

• It prevents the sand from eroding.

• It helps the water to flow in a straight line.

• It allows the river to form more naturally.

How should students modify the cups to pour water effectively?

• By poking a hole in the bottom.

• By cutting the top of the cup.

• By adding a spout to the cup.

• By using a larger cup.

What should students observe during the first trial of water pouring?

• The color of the sand.

• The speed of water flow.

• The formation of channels and erosion.

• The temperature of the water.

What variable can be changed to test its impact on stream formation?

• The size of the paint roller pan.

• The type of sand used.

• The angle of water pouring.

• The color of the paint roller pan.

How can ice cubes be used in the experiment?

• To cool down the sand.

• To change the color of the water.

• To increase water flow.

• To simulate glacial erosion.

What should students do between trials to ensure accurate results?

• Change the paint roller pan.

• Add more sand to the table.

• Smooth out the stream table and start fresh.

• Use a different type of water.