Science Starter 4/16/15Grab your notebooks and find your assigned seatWatch the video and answer the following questionsTurn in any assignments from this week

1.What is happening in the video?2.How can we provide a solution?

Ghana video: https://www.youtube.com/watch?v=h84XSCsI860

Why is it important to keep our water clean?

Cholera, a bacteria that thrives in feces-contaminated water, causes severe diarrhea and vomiting that can dehydrate and kill its victims in hours without treatment. The rate of severe cases, about 30 to 40 percent, is far higher in Ghana than the 25 percent in a typical outbreak because of extreme poverty, unsanitary conditions and lack of medical facilities

Cholera Victims

Agenda

•Ghana’s Cholera Epidemic•We all live downstream•Water Pollution Stations•What is a Wetland?• Exit Ticket

We all live downstream!

• You have each inherited $10 MILLION for a riverfront property!•On your sheet of paper, draw your river• Then, draw anything that you want to use your

riverfront property for!•What are you passionate about? If you could build

anything, what would it be?

Draw Here

Questions to think about

1. What did you draw? Why did you chose to draw that?2. Is there anything on your property that you think may

pollute the water ways?3. What is nonpoint source pollution?4. What is point source pollution?5. What are some ways that humans pollute water?6. How does pollution occur naturally?

We all live downstream

• Finish your drawing and come up to the front of the room•Place your drawing along the floor at the front an

stand by your drawing•Wait for further directions once everyone is standing

up by their property• I will hand you some items and rearrange a couple

properties

On the back of your picture…

Respond to these questions in full sentences:1. How does what happened upstream affect what

happens downstream?2. Does a small amount of litter make a big difference

over time?3. What are some things you can do now that you have

seen first hand what litter can do to water?4. How does this litter affect the water cycle?

There are 5 different types of water pollution…

Water Pollution

Chemicals

Radioactivity

Thermal Pollution

Sediments

Sewage

Quick Vocabulary Stations

•Walk around the room to get the definitions for your note sheet• You should define the following:• Watershed• Point Source & Non-point source• The 5 types of pollution (Type & Definition)

• Important parts of definitions are in BOLD UNDERLINE•When you are completed return to your seats, you have 10

minutes!!

Watershed•A watershed is all the land and river systems from

which water drains toward a common point• You live in a watershed!

Sources of Pollution•Point Source: A single identifiable source of water pollution

•Non-Point Source: Water pollution that comes from a variety of sources picked up by run-off moves

1. Chemicals

•May be toxic• Examples: Acids, fertilizers, pesticides, gas, &

oil•Results from oil spills, roadway runoff•Causes Health effects, eutrophication (increase

‘bloom’ in phytoplankton leading to hypoxia and reduced animal life)

2. Radioactivity

• Solid and liquid radioactive wastes from nuclear power plants leak into groundwater

3. Thermal Pollution

Human activity increases water temperature

Increases the fish metabolism

The fish consume more oxygen

Causes water to hold less oxygen

Destroys developing fish eggs and kills young fish

4. Sediments

• Soil run-off causes cloudy water, blocking sunlight for photosynthesis;•Waters become more shallow •Clogs fish gills

5. Sewage

•Human & animal waste causes a decrease in dissolved oxygen in the water•May contain pathogens that are then passed on to humans

What is a wetland?

https://www.youtube.com/watch?v=k7wO3W1mWnA

Exit Ticket

•Write down on a sheet of paper a few things that you would like as a reward if your group were to win• This could include:• Drinks• Chips• Candy• Snacks• Something bought at a store (<5$)

Answers

1.Wetland or marsh2.

a.Control floodsb.Filter waterc.Provide a home for living things

3.All over the world4.Stream, forest5.Estuary, river, ocean6.1/3, endangered species7.Sponge