1. Biology Do Now
Directions: Take out a sheet of notebook (Do Now sheet) and describe each type of species interaction. What type of species interaction is illustrated by the following images? 1) 2) 3) 4) 5)

2. Biology Do Now 4-26-19 Key Species Interaction: Commensalism
Directions: Take out a sheet of notebook (Do Now sheet) and describe each type of species interaction. What type of species interaction is illustrated by the following images? 1)
Species Interaction: Commensalism

3. Biology Do Now 4-26-19 Key Species Interaction: Parasitism
Directions: Take out a sheet of notebook (Do Now sheet) and describe each type of species interaction. What type of species interaction is illustrated by the following images? 2)
Species Interaction: Parasitism

4. Biology Do Now 4-26-19 Key Species Interaction: Parasitism
Directions: Take out a sheet of notebook (Do Now sheet) and describe each type of species interaction. What type of species interaction is illustrated by the following images? 3)
Species Interaction: Parasitism

5. Biology Do Now 4-26-19 Key Species Interaction: Mutualism
Directions: Take out a sheet of notebook (Do Now sheet) and describe each type of species interaction. What type of species interaction is illustrated by the following images? 4)
Species Interaction: Mutualism

6. Biology Do Now 4-26-19 Key Species Interaction: Predation
Directions: Take out a sheet of notebook (Do Now sheet) and describe each type of species interaction. What type of species interaction is illustrated by the following images? 5)
Species Interaction: Predation

7. Objective
Students will know how water cycles through the Earth by creating 2- & 3-dimensional models of the water cycle.
Mastery level: 75% or better (75 pts or better on the water cycle models)

8. Today’s Agenda Turn in your Do Nows.
Complete the hydrologic cycle worksheet from yesterday.
Work in groups of 2-4 students to create a two- or three-dimensional model of the Earth’s Water/Hydrologic Cycle. You may use your notes on the water cycle from yesterday to help you complete this activity.
Due by Monday, April 29, 2019

9. Hydrologic Cycle Vocabulary Words
Water cycle
Biosphere
Geosphere
Hydrosphere
Atmosphere
Evaporation
Condensation
Precipitation
Percolation
Groundwater
Runoff

10. Engage/Explore Edpuzzle video on the Water Cycle
Source:

11. Explore – The State of Our Chesapeake Bay for 2018
At your table, look at the Chesapeake Bay Foundation’s most current State of the Bay Report and answer the following questions on a sheet of notebook paper.
1) If you brought home a report with these grades, how would your parent/guardian respond?
2) What was the overall grade for the health of the Chesapeake Bay? What numerical grade range would this letter grade equate to?
3) Which categories did the bay get a failing grade? Provide a possible reason why the bay failed in these areas.
4) What categories did the bay get, at least a grade of B-?
5) If you were a member of the Chesapeake Bay Foundation, what recommendations would you give to improve the areas the bay received F’s for?
Range
Grade
97-100 A+
93-96 A
90-92 A-
87-89 B+
83-86 B
80-82 B-
77-79 C+
73-76 C
70-72 C-
67-69 D+
63-66 D
60-62 D-
0-59 F

12. The Water Cycle (Also known as the Hydrologic Cycle)
COPY THESE NOTES!
The Water Cycle (Also known as the Hydrologic Cycle)
Water is constantly being cycled between the atmosphere, the ocean and land. The cycle is powered by the sun. 
Each part of the cycle drives the other parts.
Slide 1 of 14

13. COPY THESE NOTES!
Evaporation
Evaporation is the process where liquid water changes from a liquid to a gas.
Slide 2 of 14

14. COPY THESE NOTES!
Evaporation
Bodies of water (oceans, lakes, rivers, ponds, streams) are warmed by
the sun.
Slide 3 of 14

15. Condensation Condensation occurs when a gas is changed into a liquid.
COPY THESE NOTES!
Condensation
Condensation occurs when a gas is changed into a liquid.
Slide 4 of 14

16. COPY THESE NOTES!
Condensation
When the water droplets remain suspended in the atmosphere.
Slide 5 of 14

17. COPY THESE NOTES!
Condensation
These millions of droplets of suspended water form clouds or fog.
Slide 6 of 14

18. Precipitation COPY THESE NOTES!
When the small droplets of water in clouds form larger droplets precipitation (rain, snow, hail, or sleet) occurs. The raindrops fall to Earth. 
Slide 7 of 14

19. Surface Runoff COPY THESE NOTES!
The precipitation runs off the surfaces of the land and flows downhill into streams, rivers, ponds, lakes, and eventually to oceans.
Slide 8 of 14

20. Percolation (Infiltration)
COPY THESE NOTES!
Percolation (Infiltration)
Percolation is an important process where rain water soaks into (infiltrates) the ground, into the soil and underlying rock layers.
Slide 9 of 14

21. Percolation (Infiltration)
& Surface Runoff

22. Percolation (Infiltration)
COPY THESE NOTES!
Percolation (Infiltration)
Some of the water percolates underground
and is called groundwater. 
Slide 10 of 14

23. Groundwater COPY THESE NOTES!
As the water moves through the soil and rock layers, many of the impurities in the water are filtered out. This filtering process helps clean the water.
Slide 11 of 14

24. Transpiration COPY THESE NOTES!
As plants absorb water from the soil, the water moves from the roots through the stems to the leaves.
Slide 12 of 14

25. COPY THESE NOTES!
Transpiration
Once the water reaches the leaves, some of it evaporates from the leaves, adding to the amount of water vapor in the air. This process is called transpiration.
Slide 13 of 14

26. COPY THESE NOTES!
Evaporation
And we’re back to Evaporation again! The endless cycle of water moving through our planet goes on and on and on…
Slide 14 of 14

27. Exit Ticket Questions Explain the major stages of the water cycle.
How could the Earth flood itself?