E-UNIT on Soil Moisture and Water Quality

Kalena and Alec are working on a project for their Environmental Science class. Their project's objective is to understand something very specific about soil and water. What is the objective of their project?

• To list the types of soil moisture

• To explain how the moisture-holding capacity of soil and the quality of water impact horticultural crops

• To describe the process of photosynthesis in plants

• To analyze the effects of different watering techniques on plants

Kalena and Alec are working on a science project to determine what percentage of their school's soccer field soil is occupied by water and air. They hypothesize that:

• About 25%

• About 50%

• About 75%

• About 85%

During a summer drought, what happens to the percentage of water in Jaden's garden soil?

• It remains constant

• It increases

• It decreases

• It fluctuates unpredictably

During a gardening project, Delaney noticed water quickly soaking into the soil after watering the plants. What is this process called?

• Permeability

• Runoff

• Infiltration

• Saturation

During a gardening project, Keith and Kalena noticed water quickly soaking into the ground after watering their plants. What is this process called in the context of soil water movement?

• The process of water soaking into soil

• The filtration of water through soil

• The formation of puddles on the soil surface

• The flow of water over a land surface

During a gardening project, Alec and Sydney noticed that water drains at different rates in various parts of their garden. What does this observation suggest about the soil's characteristic?

• The ability of soil to hold water

• The ease with which air and water can pass through soil

• The saturation level of soil

• The runoff of water from the soil surface

During a school gardening project, Meka and Kalena observed that water drains differently through various types of soil. Which type of soil do you think would allow water to pass through more easily?

• Fine soil

• Saturated soil

• Soil with a hard-packed surface

• Coarse soil

After a heavy rain, Faith notices water flowing in her backyard. What is this water called?

• Water that is absorbed by the soil

• Water that percolates through the soil

• Water that flows over a land surface

• Water that forms puddles and is used by plants

During a science fair, Kalena and Alec use a sponge to simulate a garden soil. What is the purpose of using a sponge in this demonstration?

• To show how water evaporates from soil

• To demonstrate the types of water in a growing medium

• To illustrate how plants absorb water

• To explain the process of photosynthesis

What does hygroscopic moisture represent in the context of a towel used by Sydney after a swim?

• Water that can be wrung out of the towel

• Water that is absorbed and makes the towel useful for drying off

• Moisture left in the towel that makes it feel damp but cannot be wrung out

• Water that evaporates from the towel when it is hung up to dry