Questions: your exit tickets for this unit! 1. Name and describe the phases in the water cycle. 2. Compare the 2 places water can go when it rains. 3. What is the difference between permeable and impermeable surfaces? 4. Compare the densities of hot/cold water, and water with different salinities. How will the 5. Describe the movement of ocean currents at the poles and equator. 6. What factors affect the rising and falling of groundwater levels? 7. As the human population increases, how will it affect our access to fresh water? 8. What are the effects of over pumping groundwater? 9. Why are wetlands important? 10. What are the factors that influence flooding?

Name and describe the phases in the water cycle.

The water cycle consists of several key phases:

• Evaporation: This is the process where water from oceans, rivers, lakes, and other bodies of water is converted into water vapor due to the heat from the sun.
• Condensation: Water vapor rises into the atmosphere and cools down, turning back into liquid droplets, forming clouds.
• Precipitation: When the droplets in clouds combine and grow heavy, they fall back to the earth as rain, snow, sleet, or hail.
• Infiltration: Some of the water that precipitates onto the land surface seeps into the ground, replenishing groundwater supplies.
• Runoff: Water that does not infiltrate the ground flows over the surface and collects in bodies of water like rivers, lakes, and oceans.
• Transpiration: Plants absorb water from the soil and release water vapor into the air through their leaves.

Compare the 2 places water can go when it rains.

When it rains, water can go to two primary places:

• Surface Runoff: Water flows over the land surface and collects in rivers, lakes, and oceans. This occurs when the ground is saturated, impermeable, or when rainfall is too intense for the ground to absorb quickly.
• Infiltration: Water seeps into the soil and becomes part of the groundwater system. This is more likely to occur in areas with permeable soil and less intense rainfall.

What is the difference between permeable and impermeable surfaces?

• Permeable Surfaces: These are surfaces that allow water to pass through them. They are typically made of materials like soil, sand, and gravel, which have spaces or pores that let water infiltrate into the ground. Permeable surfaces help recharge groundwater and reduce surface runoff.

• Impermeable Surfaces: These surfaces do not allow water to pass through. They are usually made of materials like concrete, asphalt, and clay, which have little to no spaces for water to infiltrate. Impermeable surfaces increase surface runoff and can contribute to flooding and erosion.