Water Smart: The Sun, Water Cycle, & Climate - Runoff

The video explains water runoff, its path, and its effects on the environment. It covers how runoff can cause erosion by moving soil and rocks downhill. Heavy runoff can be destructive, filling streams with sediment and carrying pollution. It affects fish, plants, and tree roots, especially in urban areas with lots of pavement and fields with little vegetation. The video suggests using fences in construction areas to prevent soil and pollutants from being washed away.

What happens to water after it hits the ground?

• It evaporates immediately.

• It runs off downhill.

• It turns into vapor.

• It stays in the same place.

What is erosion?

• The freezing of water.

• The absorption of water by plants.

• The movement of soil and rock by water.

• The process of water evaporating.

How can you observe erosion in a simple experiment?

• By freezing water.

• By spraying water onto a pile of sand.

• By mixing water with oil.

• By boiling water.

What is one effect of heavy runoff on streams?

• It makes the water clearer.

• It reduces water flow.

• It fills streams with sediment.

• It increases fish population.

What is a recommended measure for construction sites to prevent soil erosion?

• Building more roads.

• Using fences to keep soil in place.

• Increasing the use of concrete.

• Planting more trees.