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Boot camp Homework Week 1 (April 17-21)Human Body System (Monday, April 17)

Directions: Match the body system with a corresponding function.

___________1. Circulatory system A. gas exchange: oxygen in, CO2 out

___________2. Skeletal system B. removes extra water waste from our body

___________3. Respiratory system C. allows us to move parts of our body

___________4. Nervous system D. largest organ, protects body and regulates body temperature

___________5. Muscular system E. transports nutrients to thebody’s cells

___________6. Digestive system F. the control center of our body

___________7. Excretory system G. create offspring with genetic material passed down.

___________8. Reproductive system H. breaks down food into necessary nutrients

___________9. Integumentary system (skin) I. structure and supports body

Short and Long term affects (Wednesday, April 19)All ecosystems change over time. Sometimes the changes are long-term. They occur over thousands or millions of years. Other times, the changes are short-term. They occur rapidly over a few years or less. Humans cause many of these short-term changes. Deforestation and pollution are two ways that humans cause short-term changes in ecosystems.#1. What is the difference between a long-term and short-term change? ________________________________________________________________________________________________________________________________________________________________________________________________ Deforestation occurs when humans cut down and clear all the trees in an area. Humans use the trees for lumber and the cleared land for building or farming. Deforestation kills the plants in an ecosystem. The animals in the ecosystem lose their shelters and sources of food. Many animals die, and some move to new places. Deforestation also causes soil erosion. When the trees are removed from a forest, their roots no longer hold the soil in place. The top layer of soil washes away when it rains. This makes the land less suitable for growing plants.#2. Define: deforestation: ____________________________________________________________#3. What is the impact of deforestation on animal populations: ________________________________________________________________________________________________________________________#4. How does deforestation cause soil erosion to occur? ________________________________________________________________________________________________________________________Humans also release pollutants that damage ecosystems . Pollutants such as chemicals and fertilizers can flow over land into streams. The streams carry the pollutants to larger bodies of water such as lakes and oceans.

#5. When water flows over land and ends up in streams and other bodies of water, this process is known as ___________________________________________________________.

Name: __________________________________________ Period: _________

Tides (Thursday, April 20)

Draw and label BOTH moon phases for EACH type of tide.

Spring Tide:

Neap Tide:

1. Spring _____________, Neap ________________2. Greatest tidal range, Highest high tides, Lowest

low tides=______________.3. Least difference between a high and low

tide=______________.

Watershed (Friday, April 21)

Use the diagram above to answer the following questions.

1. A student drew the model above to represent a part of a watershed and some human activities that affect the watershed. How do the industrial, agricultural, and residential activities of humans most likely affect the groundwater in the area?A. The activities prevent most of the water from evaporating into the

atmosphere.B. Pollutants from the activities percolate through the soil and enter

the water table.C. The activities replace the groundwater used.D. All of the above

2. What will happen if the trees in the model shown above are removed?A. More erosion will take place resulting in a larger amount of soil

included in the runoff.B. Less erosion will take place resulting in a smaller amount of soil

included in the runoff.C. The groundwater will not be impactedD. The amount of pollution in the ground water will be less.

Dichotomous Key (Tuesday, April 18)